Linear spring-loaded actuator for a valve
AssigneeLuxembourg Patent Company S.A.
InventorPaul Kremer
Life of this patent
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Abstract
A linear spring-loaded actuator (10) for a valve (12) comprises a housing (14) and an actuating spindle (16) slidably supported in the housing (14). A cap (22) is associated with the housing (14). Spring means (36), arranged in the housing (14), bear on the cap (22) and the actuating spindle (16), so as to exert a spring force on the actuating spindle (16). A thread (26) on the housing (14) cooperates with a thread (24′, 24″) on the cap (22) for screwing the cap (22) on the housing (14) so as to preload the spring means (36) in the housing (14). At least one lock means (40) is associated with one of the threads (24′, 24″) and is capable of deforming this thread (24, 24″) so as to lock it in any position on the cooperating thread (26).
Claims18
A linear spring-loaded actuator for a valve, said actuator comprising:
- a housing;
- an actuating spindle slidably supported in said housing;
- a cap associated with said housing;
- spring means arranged in said housing, said spring means bearing on said cap and said actuating spindle, so as to exert a spring force on said actuating spindle;
- a thread on said housing and a thread on said cap, said threads cooperating for screwing said cap on said housing so as to preload said spring means in said housing;
- and
- at least one lock means associated with one of said threads, said lock means being capable of deforming said thread so as to lock it in any position on the cooperating thread.
A valve including a linear spring-loaded actuator comprising:
- a housing;
- an actuating spindle slidably supported in said housing;
- a cap associated with said housing;
- spring means arranged in said housing, said spring means bearing on said cap and said actuating spindle, so as to exert a spring force on said actuating spindle;
- a thread on said housing and a thread on said cap, said threads cooperating for screwing said cap on said housing so as to preload said spring means in said housing;
- and
- at least one lock means associated with one of said threads, said lock means being capable of deforming said thread so as to lock it in any position on the cooperating thread.
Dependencies are inferred from the claim text.