Bellows

About: Bellows is a research topic. Over the lifetime, 15312 publications have been published within this topic receiving 73914 citations.

End effector with suction cups having internal valves

Abstract: An air retriever, such as a bellows ( 24 ) is used in an end effector ( 18 ) for lifting work products ( 22 ) in prearranged configurations, and delivery to a container ( 20 ) in a predetermined pattern. An air flow control valve ( 50 ) is positioned in each bellows ( 24 ) for individually controlling the flow of air through each bellows so that the bellows in a pick zone may draw air for picking up work products while air flow is not applied to the other bellows out of the pick zone.

Joint motion facilitation device

Abstract: When air is supplied by an air pressure regulation part to bellows 211 through 213 of finger joint motion facilitation parts 110 j (where j=1, . . . , 5), the bellows 211 through 213 expand approximately in the shape of circular arcs, since annular grooves on the side of the bellows 211 through 213 opposing a joint are elastically restrained by elastic members 241 through 243 . Due to this, the bellows 211 through 213 cooperate, and exert force in the rotational direction to flex the first through the third joints of a finger from their extended states. Next, when air is exhausted from the bellows by the air pressure regulation part, the bellows 211 through 213 contract. Due to this, the bellows 211 through 213 cooperate, and exert force in the rotational direction to extend the first through the third joints of a finger from their flexed states. The forces generated in this manner are transmitted to the joints by transmission members 231 through 234 . As a result mounting becomes simple, and also it is possible to facilitate sufficient joint movement for each joint.

Pressure damper for a pressure vessel

Abstract: The present invention relates to a pressure damper for a pressure vessel, in particular for a fuel distributor for an internal combustion engine, with a damper bellows that is connected to a sealing cap for closing an opening of the pressure vessel. In order to obtain a pressure damper that can be installed as easily as possible and can be manufactured as inexpensively as possible, the provision is made according to the invention that the sealing cap is embodied of one piece as a deep-draw part made of metal.

Flexible extensible and contractable tube

Abstract: A flexible extensible and contractible tube is provided which comprises a main body of straight tube joined at its opposite ends with a pair of bellows tubes, the outer surface of the straight and bellows tubes being encased by a network formed of braided wire or strip material, the network being clamped at its ends to extensions of the bellows tubes with clamping members. The present invention is simple to form, exhibits reduced resistance to fluid flow through its interior, permits ready extension and contraction of the network, and maintains well stabilized shape.

Well head heating system

Abstract: The present invention relates to a system for heating the well head assembly of a conventional oil well pumper. The system functions by routing a portion of the engine coolant from the pumper engine to a heat tracing loop. This loop enables a portion of the coolant to heat a well head assembly. Such heating reduces well head freeze ups and consequent well shut downs. The present invention also employs a temperature regulator which functions in optimizing the amount of engine coolant routed into the heat tracing loop. An amount of vaporizable fluid is in thermal contact with the heat tracing loop. Increased tempertures within the loop serve to vaporize the fluid. This vaporized fluid is then employed within an expansible bellows. Expansion of the bellows serves to open a poppet valve and decrease the amount of coolant routed through the loop.