Adjustable valve linkage
AssigneeJohnson Controls GmbH
InventorCharles F. Beeson
Life of this patent
Estimating the term…
Abstract
A valve actuator mechanism for supplying a selectively adjustable close-off force to an associated valve. The mechanism comprises a means for urging the valve plunger into engagement with the valve seat with a predetermined initial force and resistive means for generating a resistive force such that the close-off force is less than the initial by a predetermined amount. The resistive force can be selectively adjusted also.
Claims12
A valve actuating mechanism for actuating a valve having a plunger and seat, and providing a close-off force of predetermined magnitude against said seat, comprising:
- (a) means for urging said plunger into engagement with said seat with a predetermined initial force, said urging means including a movable actuating shaft releasably coupled to a valve stem projecting outwardly of said valve;
- (b) resistive means responsive to said urging means when said plunger is urged against said seat for generating a resistive force of a magnitude and direction such that said close-off force against said seat is less than said initial force by a predetermined amount;
- and
- (c) adjusting means for selectively varying said resistive force by said predetermined amount, including:
- a bushing having a radial flange, slidably mounted on said shaft;
- and
- means including a stop disposed on said shaft near one end thereof for limiting movement of said bushing in one direction;
- and an adjustable stop disposed on said shaft;
- said resistive means positioned between said radial flange and said adjustable stop, said resistive means generating a force of increasing magnitude as said adjustable stop is moved closer to said bushing.
A valve actuating mechanism for actuating a valve having a plunger and seat, and providing a close-off force of predetermined magnitude against said seat, comprising:
- (a) means for urging said plunger into engagement with said seat with a predetermined initial force;
- (b) resistive means responsive to said urging means when said plunger is urged against said seat for generating a resistive force of a magnitude and direction such that said close-off force against said seat is less than said initial force by a predetermined amount;
- (c) adjusting means for selectively varying said resistive force by said predetermined amount;
- (d) A bracket having an aperture generally centrally disposed on a face of said bracket;
- and
- (e) means releasably mounted to said bracket for securing said valve to said bracket, wherein said securing means comprises:
- a collar having an adjustable internal circumferential region disposed proximal said aperture and adapted to receive a portion of said valve;
- means for adjusting the internal circumferential region of said collar;
- means secured to said collar for adjusting the distance of said collar in relation to said face of said bracket;
- and
- means for releasably securing said collar to said bracket.
A valve actuating mechanism for actuating a valve having a plunger, a seat and an attachment surface, and providing a close-off force of predetermined magnitude against said seat, comprising:
- (a) means for urging said plunger into engagement with said seat with a predetermined initial force;
- (b) resistive means responsive to said urging means when said plunger is urged against said seat for generating a resistive force of a magnitude and direction such that said close-off force against said seat is less than said initial force by a predetermined amount;
- (c) adjusting means for selectively varying said resistive force by said predetermined amount;
- (d) bracket means fixedly secured to said valve actuating mechanism for allowing movement of said valve actuating mechanism relative to said valve;
- (e) mounting means for positioning said valve relative to said bracket means including collar means for releaseably and adjustably securing said valve to said bracket means, means for maintaining said collar means a predetermined distance from said bracket means and means for selectively varying said predetermined distance.
Dependencies are inferred from the claim text.