Showing papers on "Grease published in 1989"

Impact dot head

Abstract: PURPOSE: To eliminate loss of printing power and wire driving capacity of an impact dot head, and to improve durable performance by managing grease coating amount and grease quality, and coating a necessary position with grease. CONSTITUTION: A fulcrum position of a fulcrum support for rotating a lever 1 is coated with grease (a) of No.1 to No.5 of consistency 0.1×10 -3 cc to less than 10×10 -3 cc. An engaging part I of the lever 1 with a return spring 2 is coated with grease (b) of No.0 to No.4 of consistency 1.0×10 -3 cc or less, Further, the surface of a core to be collided or slid with the attraction part of an armature 4 is coated with grease (c) of No.0 to No.5 of consistency 0.7mm thick or less. Then, a wire 7 is slid in a state that grease (d) is filled at an end wire guide 21, and the grease (d) is introduced into the hole 24 of the guide 21 when it is slid. As a result, the hole 24 is not introduced with paper chips, ink pigments (g), thereby improving its durability. COPYRIGHT: (C)1991,JPO&Japio

Grease trap construction

Abstract: A grease trap construction comprising a housing having an inlet to receive waste water containing grease and foreign material and having an outlet. An air conduit having a plurality of outlet ports spaced along its length is located in the lower end of the housing and is connected to a source of air under pressure, so that air will be discharged through the ports into contact with the waste water. The waste water within the housing is heated by an electric heating element which is immersed in the waste water and the heating element is controlled by a thermostat to maintain the temperature of the waste water within a given range. An aqueous composition containing a mixture of enzymes and bacterial spores is introduced into the housing into contact with the waste water. The enzymes and bacterial spores act on the grease, fats and other material in the waste water to provide a substantial reduction in total solids and an increase in soluble solids, as well as a substantial reduction in the BOD level of the waste water.

Grease absorbent device

Abstract: A multiple layered device and method of using same for safely and efficiently removing excess fats and oils from fried and grilled foods immediately after cooking, prior to consumption An outer grease impervious body portion is covered on the inner surface thereof with a grease absorbent material which in turn is overlaid with a foraminous grid which separates the food from the absorbent material while permitting the passage of grease therethrough The device is disposable in an ecologically acceptable manner

Silicone-grease-based immobilisation method for the preparation of enzyme electrodes

Abstract: An approach to the construction of amperometric biosensors based on the incorporation of an enzyme in silicone grease and using the grease to fill micropores on a graphite surface is described. The enzyme-grease electrode concept, illustrated with the enzyme tyrosinase, offers a very simple, rapid and inexpensive approach to the fabrication of enzyme electrodes. The tyrosinase electrode responds very rapidly to dynamic changes in the concentration of phenolic compounds. A response time (t95%) as low as 5 s has been determined. With flow injection, 120 samples per hour can be processed with a relative standard deviation of 2.4%. The electrode remains active for about 12 d. The detection limit for dopamine is 6 × 10–6M. This method of biosensor construction should be applicable to other enzyme-substrate systems.

Polyurea and calcium soap lubricating grease thickener system

Abstract: A high performance lubricating grease is provided with an improved blended thickener system comprising polyurea and calcium soap.

Combination air/manual economy grease dispenser

Abstract: A combined pneumatic and manual grease dispensing system comprises a manually operated fluid pump that draws lubricant from a source and delivers the lubricant at a first fluid pressure, and a pneumatically operated lubricant dispensing gun that receives the lubricant supplied by the manual pump at the first pressure and receives a supply of compressed air from a compressed air source, and dispenses the lubricant received at a second pressure substantially increased from the first pressure at which the lubricant is supplied to the gun.

Bearing lubricating device

Abstract: A bearing lubricating device which is designed for attachment to the wheel bearing housing of a trailer or other vehicle to automatically lubricate the bearings in the bearing housing. The bearing lubricating device includes a cylindrical grease housing fitted with a spring-loaded piston and a piston plate extending from the piston, wherein the piston projects from the end of the grease housing. When grease is charged into the interior of the grease housing, the spring is compressed and forces the piston farther outwardly of the grease housing, to indicate that sufficient grease is provided in the grease housing for proper lubrication of the wheel bearings. In a first preferred embodiment of the invention a stop ring is provided in the housing to limit travel of the piston plate and piston in the housing and the projecting end of the piston is color-coded to indicate the grease content inside the grease housing. In a second preferred embodiment a retainer is attached to the piston for the same purpose.

Application of freeze-fracture technique for analyzing the structure of lubricant greases

Abstract: The freeze-fracture technique has been developed to study solid-liquid dispersions. In this technique, a sample of dispersion is frozen, then fractured. A replica of the fracture surface is made and observed using a scanning electron microscope. The physical form of the solid thickener in dispersion can be studied, and the structure of the thickener can be revealed as well as a combination of rupture properties of the solid and the frozen liquid. The application of this technique is on lubricant greases. Greases are two-phase dispersed systems composed of mineral oil gelled with solid particles of soap. Three lithium 12-hydroxystearate greases are examined. Two different kinds of washing of the replica are used, the first eliminating the liquid phase. The configuration of soap particles and the network formed by them are observed, and artifacts such as twisting soap fibers are avoided. The second washing eliminates the solid and liquid phase. Examination of the fracture surface of the soap provides information on crystalline arrangement. The observed structures by freeze fracture are related to the thermal treatments during grease manufacture. The results are compared with the observations obtained from an electron transmission microscope analysis after preparation by the usual dispersion technique.

Front-wheel drive grease with synergistic sulfate and carbonate additive system

Abstract: A high performance sulfated lubricating grease effectively lubricates front-wheel drive joints as well as other equipment. The lubricating grease has excellent extreme pressure properties and antiwear qualities and is economical, effective, and safe. In one preferred form, the sulfated lubricating grease comprises a base oil, a polyurea thickener, a borated oil-separation inhibitor, and a special synergistic, additive package comprising calcium sulfate and calcium carbonate.

Steel mill grease

Abstract: A high performance lubricating grease effectively lubricates and protects caster rollers and bearings in steel mills and other metal processing mills. The high performance grease has excellent extreme pressure and antiwear qualities and is economical, nontoxic and safe. In the preferred form, the high performance grease comprises a base oil, a polyurea thickener, extreme pressure wear-resistant additives comprising tricalcium phosphate and calcium carbonate, and a water-resistant high performance polymer.

Heated sump assembly for a grease/oil separator

Abstract: A grease/oil separator of the type primarily used in industry for the removal of grease/oil contaminants from water flowing from a restaurant or like business to the conventional sewer facilities and being of the type which includes a heater structure mounted within a receiving container. A heat conductive wing defines a heat sink and is secured to an under portion of a trough or receiving portion of a containment removal sump. The heat sink is dimensioned and configured to extend into submerged relation within the liquid reservoir of the receiving container and transfer heat, through conductivity therefrom to the heat sump so as to maintain the heat sump at a minimum predetermined temperature sufficient to prevent grease/oil contaminants from solidifying and clogging the removal sump.

Process for preventing grease fires in steel mills and other metal processing mills

Abstract: A process is provided for preventing grease fires, which is particularly useful in steel mills and process mills. In the process, when a flame is ignited and approaches a special grease, the special grease emits carbon dioxide to extinguish the flame and prevents combustion of the grease.

Grease composition containing an ethylene copolymer having a melt index of at least about 40

Abstract: A lubricating composition having improved high and low temperature properties is disclosed. More specifically, the addition of a certain ethylene copolymers having a Melt Index of at least about 40 g/10 mins. to a mixture comprising (1) a lubricating oil, (2) a thickener, and (3) a VI improver results in a lubricating composition which has both excellent high temperature adhesiveness and low temperature slumpability.

Graphite-containing lubricant composition

Abstract: A lubricant composition for use in threaded tube and pipe connections comprises from 10 to 70% by weight of pure, crystalline, graphite and from 0.1% to 10% by weight (calculated of graphite) of a special additive in the form of strongly polarizable or ionizable organic compounds like e.g. amines, amine salts, metal-amine complexes, combinations of amines with polymers, polymeric amines, ammonium compounds, alkylsulphates, organic phosphates, phosphonates and sulphonates. The balance is formed by a supporting vehicle such as an oil or grease. In this composition, the performance characteristics of the graphite have been improved by the special edditive such that it can be used for lubricating and sealing threaded tube and pipe connections under conditions of extreme pressure.

Fluorine-containing grease and its preparation

Abstract: A fluorine-containing grease comprising polytetrafluoroethylene and a perfluoroalkyl polyether which is prepared by polymerizing tetrafluoroethylene in the perfluoroalkyl polyether has good homogeneity and lubricity

Oil-in-water type emulsified composition

Abstract: PURPOSE: To obtain an oil-in-water type emulsified compsn capable of satisfying a greasy feeling even when the amt of grease is reduced by using a glyceride mixture having ≤35°C mp and contg a specified amt of diglyceride as an oily phase CONSTITUTION: A glyceride mixture having ≥35°C mp and consisting of 30-100wt% diglyceride, monoglyceride in (0-1)/20 weight ratio to diglyceride and the balance triglyceride is used as an oily phase to obtain an oil-in-water type emulsified compsn This compsn can satisfy a rich greasy feeling in spite of the low grease content COPYRIGHT: (C)1991,JPO&Japio

Process for protecting bearings in steel mills and other metal processing mills

Abstract: A process is provided for lubricating and protecting bearings in steel and process mills. In the process, metal is processed in the mill and conveyed on caster rollers. The caster rollers are lubricated with a special grease which enhances the longevity of the rollers, protects the rollers from rust and corrosion, and prevents the grease from leaking out of the rollers. In the preferred form, the grease comprises a water-resistant polymer to prevent the grease from washing out of the rollers and bearings when the metal workpiece is quenched with a high pressure water spray.

Self-cleaning grease filter for range hood

Abstract: PURPOSE:To use a grease filter cleaned at all times by making the grease filter for a range hood freely rotatable at low speed, and providing an ultrasonic cleaner for cleaning a part of the filter. CONSTITUTION:The grease filter 2 is formed at the suction part of the range hood 1, and rotated, as required, at low speed by a low-speed motor through a rotating means 5. A part 4 of the rotating filter 2 is dipped in the cleaning tank of the ultrasonic cleaner 6, and the part is cleaned. The whole filter 2 is automatically cleaned while being rotated.

Grease applicator for wheel bearings

Abstract: A tool for applying grease to the outer wheel bearing set of a spindle-mounted vehicle wheel is dimensioned for engagement with the wheel hub bore after the wheel's grease cap is removed. A pair of nested cylinders connected to a pressurized grease source form an annular passage for delivery of grease into the outer wheel bearing. The inner cylinder covers the spindle and wheel retaining hardware while the outer cylinder engages the outer rim of the wheel hub bore.

Production of grease having excellent acoustic property

Abstract: PURPOSE:To obtain a grease suitable for bearing having small diameter, etc., having noise-suppressing property by reacting a base oil dissolving or dispersing an isocyanate with a base oil dissolving or dispersing an amine in a specific condition. CONSTITUTION:(A) A base oil dissolving or dispersing an isocyanate and (B) a base oil dissolving or dispersing an amine are respectively pressed at (preferably 25-200kgf/cm ) and reacted by impinging mixing, or respectively pressed at 0.5-25kgf/cm (preferably 1-5kgf/cm ) and reacted with introducing to a stirring wing in rotating to afford the aimed grease.

Reduction gear lubricant composition

Abstract: PURPOSE:To reduce torque at low temperature due to the lubricity and improve the durability by using a base oil consisting of a specified aliphatic hydrocarbon oil and a polymethacrylate and a thickening agent for a lubricating grease as constituents. CONSTITUTION:An aliphatic hydrocarbon oil (a) of the formula (wherein R is 3-12C alkyl: n is 1 to 6) (e.g. a poly-alpha-olefin oligomer) having a viscosity (100 deg.C) of 3-20cSt is mixed with a polymethacrylate (b) at a weight ratio of (a) to (b) of (99 to 90):(1 to 10) to give a base oil (A). Component A is mixed with a thickening agent (B) for a lubricating grease, preferably comprising urea and, if necessary, an antioxidant, a rust preventive, a lubricating oil, a solid lubricant, etc. (C).

Grease feeder for seal section

Abstract: PURPOSE: To surely maintain the sealing function by providing a grease pump, its filling pressure setting part, a detector, a comparison operation part to output the differential signal between the detected signal and the set signal, and a pump discharge regulation and control part. CONSTITUTION: Two stages of U-packing seals 11 are arranged in a seal housing 5 provided in a part where a center shaft 2 is pierced through a bulkhead 4 of a shield body. A pressure detector 19 is fitted to a grease pocket part 12 of the seal housing 5, and the grease filling pressure is detected. The grease filling pressure is set by a setting part 20 so as to be slightly higher than the external pressure P. The detected signal ES from a power detector 19 is computed and compared with the signal EX from the setting part 20 by a comparison operation part 21. A control part 22 is provided on a power source line of a motor 13. The function can be ensured even when grease is leaked through a worn seal, etc.

Calcium soap thickned front wheel driving grease

Abstract: A high performance lubricating grease effectively lubricates and greases front-wheel drive joints. The front-wheel drive grease has excellent extreme pressure properties and antiwear qualities and is economical, non-toxic and safe. In one preferred form, the front-wheel drive grease comprises a base oil, a thickener comprising polyurea and calcium complex soap, and an additive package comprising tricalcium phosphate and calcium carbonate. A process for its preparation and its use.

Lubricant composition for hot-rolling of steel

Abstract: The title lubricant composition comprises a base oil or base grease and a specified amount of a heat insulating agent comprising (A) an inorganic compound undergoing endothermic melting at temperatures of 1200°C or below and (B) an inorganic powder which neither melts nor decomposes at temperatures of 1200°C or below and which has a thermal conductivity of 0.01 cal/cm.s.°C or less and a friction coefficient of 0.7 or less at room temperature added alone or as a combination. This lubricant composition has an excellent heat-insulating effect and is effective in preventing occurrence of thermal crown of working rolls.

Shock absorber of reduction gear

Abstract: PURPOSE:To increase the fatigue life of an elastic member, by applying a grease compsn comprising a principal component based on a polyoxyalkylene (ether deriv) and a particular secondary component CONSTITUTION:A grease compsn is obtd by blending 1-30ptswt secondary component comprising a member selected from succinic acid (anhydride), hydrocarbyl group-substd succinic acids (anhydride) and hydrocarbyl group- substd succinic esters with a principal component of grease obtd by adding a thickening agent (eg, lauric acid) to a base oil comprising a polyoxalkylene (ether deriv) (eg, polyoxyethylene) This grease compsn is applied between parts, such as a housing 11, a metal worm driving gear 6, an input shaft 5 united with the gear 6, a helical driven gear 3, an elastic member 1 bonded between the first plate 2 and the second plate 7 and an output shaft 4

Grease-skimming unit for kitchen

Abstract: The utility model discloses a grease-skimming device used for separating grease from sewage in places of restaurants, etc. At present, sewage containing grease in restaurants is unable to be handled, not only can pollute water, but also clogs sewers. The existing oil-water separators are unable to be used for separating the grease. The grease-skimming device is a container which is provided with a water inlet pipe, a filter screen, a baffle, an electric heater, an anti-siphon pipe, a grease outlet, an electric switch, an indicating light, etc.; the grease-skimming device can make sewage entering into the container filter, and the grease in the sewage is floated upward by the balance of water pressure and air pressure, is centralized and is thickened at the position of the baffle, and is discharged from a grease port. The height of water level is controlled by the positions of the anti-siphon pipe and the water outlet pipe. The grease-skimming device has simple structure and favorable grease-skimming effect.

Bearing device for rotary electric machine

Abstract: PURPOSE:To easily replace old grease with new one, by opening the internal end inlet of a conducting route for injecting the grease from an external section to the bearing of a rotary electric machine, on the outer peripheral surface section of a grease filling chamber on the internal end side of the bearing in a bearing housing section CONSTITUTION:By a bearing 2 fitted in a housing section 1a, a rotor shaft 3 is rotatably supported By the bearing 2, between internal and external rings 2a, 2b, a plurality of rollers 2c are arranged via a retainer 2d A conducting route 21 for injecting grease into the housing section 1a from an external section is formed inclined and directed downward, and the tip of the route 21 is continuously connected to a ring-formed passage section 21a along the outer peripheral surface of a bearing stopper 22 on the internal end side of the bearing 2 The grease injected into the conducting route 21 is conducted through the passage section 21a, and through internal end openings 21b, 22b arranged at the bearing stopper 22, and the internal and external rings 2a, 2b and the rollers 2c are lubricated, and old grease is extruded to a grease storing section 13, and is taken out of a discharging outlet as not shown in a figure As a result even during operation, the old grease is easily replaced with the new one

Lithium grease composition

Abstract: PURPOSE:To obtain a grease, having a high dropping point, fretting resistance and acoustic characteristics in addition to heat, water resistance and durability, by blending a thickener system containing specific two kinds of Li soaps and monolithium borate as a thickener with a lubricating base oil. CONSTITUTION:The aimed grease obtained by blending 2-30wt.% thickener system containing (A) a lithium soap of a 12-24C dihydroxy fatty acid, (B) lithium soap of a 10-34C fatty acid and (C) monolithium borate as a thickener with a lubricating base oil. The fatty acid is contained in an amount of 0.1-9 pts.wt. based on 1 pt.wt. dihydroxy fatty acid and the dihydroxy fatty acid is contained in an amount of 3-100 pts.wt. based on 1 pt.wt. boric acid.