Helical compression spring

Details Helical compression spring Helical compression spring

1995-11-14

1997-07-29

Rivell, John

Dispensing

With discharge assistant

With biasing means for discharge assistant and/or its casing

2223219, G01F 1102

Patent

active

056514808

ABSTRACT:
Helical compression spring designed as a thermoplastic molding and having an end collar on the valve-seat side and an end collar on the actuating side. The technical problem is to provide a helical compression spring having a valve closure member which can move unhindered and is of corrosion-proof design. The end collar on the valve-seat side accommodates a valve closure cap which is made of a thermoplastic and whose tappet is guided so as to be movable in the axial direction of the helical compression spring.

REFERENCES:
patent: 2521961 (1950-09-01), Bacheller
patent: 4325501 (1982-04-01), Shay
patent: 4512501 (1985-04-01), Foster
patent: 5307962 (1994-05-01), Lin
patent: 5553757 (1996-09-01), Wang

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