Manually, pneumatically, or electrically operable drain valve device
First Claim
Patent Images
1. A drain valve device for collecting and expelling moisture condensate from a compressed air system, said drain valve device comprising:
- a. a casing having formed therein a valve chamber connectable to the compressed air system for collecting moisture condensate therefrom;
b. valve means in said chamber normally occupying a seated disposition in which the chamber is closed to atmosphere, and being operable to an unseated disposition for opening the chamber and expelling the moisture condensate therein to atmosphere;
c. cam means connected to said valve means and alternately movable in opposite directions for operating said valve means to its said unseated disposition each time said cam means moves in each of said opposite directions; and
d. operating means normally biased toward a first position for moving said cam means in one of said opposite directions, and effective, when actuated, for moving said cam means in the other of said opposite directions.
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Accused Products
Abstract
An automatic drain valve device alternatively adaptable for use in compressor systems using either electrical or pneumatic controls for cutting out and cutting in the compressor, and being operable to provide a drain operation twice during each cycle of compressor operation, that is, once when the compressor is cut out and again when the compressor is cut in. A manually operable lever on the valve devices provides for manual operation of the drain valve device at will and independently of the pneumatic and electrical controls.
21 Citations
10 Claims
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1. A drain valve device for collecting and expelling moisture condensate from a compressed air system, said drain valve device comprising:
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a. a casing having formed therein a valve chamber connectable to the compressed air system for collecting moisture condensate therefrom; b. valve means in said chamber normally occupying a seated disposition in which the chamber is closed to atmosphere, and being operable to an unseated disposition for opening the chamber and expelling the moisture condensate therein to atmosphere; c. cam means connected to said valve means and alternately movable in opposite directions for operating said valve means to its said unseated disposition each time said cam means moves in each of said opposite directions; and d. operating means normally biased toward a first position for moving said cam means in one of said opposite directions, and effective, when actuated, for moving said cam means in the other of said opposite directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification