Topic
Bellows
About: Bellows is a research topic. Over the lifetime, 15312 publications have been published within this topic receiving 73914 citations.
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Patent•
14 Jan 2000TL;DR: A liquid valve particularly suited for dispensing of glue at high repetition rate has a solenoid-retracted pin that normally engages a valve seat to close the valve as discussed by the authors.
Abstract: A liquid valve particularly suited for dispensing of glue at high repetition rate has a solenoid-retracted pin that normally engages a valve seat to close the valve. Glue under pressure enters the chamber in which the pin operates, close to the valve seat. To seal against the flow of pressurized glue up along the pin toward the solenoid, and also to exert a light valve closing force on the pin, a thin metal bellows member is sealed and fixed to the pin near its lower end, at one end of the bellows, and to a connector within which the pin slides, at an opposite, upper end of the bellows. The geometry of the valve seat and the valve closure end of the pin is such that only a very slight retraction of the valve pin opens the valve sufficiently to deliver glue at full velocity through the valve orifice. The valve is capable of accurate glue dispensing through a wide range of operating pressure.
17 citations
Patent•
12 Aug 1974
TL;DR: In this article, a switch is operated by a pivoted arm with the arm being acted on by a first bellows on one side and a second one on the opposite side.
Abstract: A superheat control for a refrigeration system in which a switch is operated to provide a control function. The switch is operated by a pivoted arm with the arm being acted on by a first bellows on one side and a second bellows on the opposite side. The first bellows is responsive to the suction pressure to the compressor while the second bellows is responsive to the suction temperature.
17 citations
Patent•
08 Jun 1983
TL;DR: In this article, the authors describe an elastic self-carrying bellows-body, in particular for vehicles, having been formed with ribs separated by spacings and interconnected with connecting means, and the essence of the invention lies in that the thickness of the connecting means interconnecting the ribs is less on at least two opposite sides of the bellows body, than that of the ribs and the ribs are formed as monolithic units.
Abstract: The invention relates to an elastic self-carrying bellows-body, in particular for vehicles, having been formed with ribs separated by spacings and interconnected with connecting means. The essence of the invention lies in that the thickness of the connecting means interconnecting the ribs is less on at least two opposite sides of the bellows-body, than that of the ribs and the ribs and connecting means are formed as monolithic units.
17 citations
Patent•
10 Sep 1990
TL;DR: In this paper, a target bubble generating and target shooting system with a torus-shaped reservoir and a vertically reciprocable bubble wand is described. But the authors do not specify the size of the reservoir.
Abstract: Target bubble generating and target shooting systems (50, 50A, 50B, 50C) are disclosed employing a target bubble generator housing (59), a pair of left and right actuating handles (51, 55) pivotally coupled at their front ends of the left and right vertical edges of the housing (59), and a bellows assembly (116) positioned intermediate the left and right handles (51, 55) and coupled to the latter at the approximate midpoints thereof. The target bubble generating housing (59) includes a torus-shaped reservoir (81) and a vertically reciprocable bubble wand (98) having a film-forming elliptical ring structure (101) including upper and lower serrated arcuate edges (102, 104) of truncated triangular cross section to minmize disturbance of the soapy fluid in the reservoir (81) as the bubble wand (98) exits the fluid. The bellows assembly (116) generates three positive pressure airstreams during compression--one to lift the wand (98) out of the film-forming solution, one to strip the soapy film from the wand (98) to form and project target bubbles (60), and one to actuate an audible sound generator (127). During expansion, the bellows assembly (116) creates a negative pressure condition which serves to affirmatively retract the bubble wand (98). The twin actuating handles (51, 52) which are manually manipulated to compress and expand the bellows (58) serve as water ejectors capable of projecting one or two high pressure water stream (61) along parallel, convergent or divergent trajectories to enable shooting down target bubbles (60).
17 citations
Patent•
17 Nov 1986
TL;DR: In this article, a method of manufacturing bellows members composed of stacks of annular elements which are joined together by weld seams produced alternately at inner and outer edges of the elements is described.
Abstract: A method of manufacturing bellows members composed of stacks of annular elements which are joined together by weld seams produced alternately at inner and outer edges of the elements In the invention at least some of the annular elements of a bellows member are mounted on a rotating fixture for welding the seams by a beam welder During the production on one such seam the beam welding device is held stationary in relation to the elements
16 citations