Closure member locking retainer

Details Closure member locking retainer Closure member locking retainer

1992-10-07

1994-03-29

Shoap, Allan N.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220288, 220315, 220327, 411120, 411121, 411124, B65D 4500

Patent

active

052976939

ABSTRACT:
A closure member for sealing an opening for a cavity in a housing to prevent fluid from being communicated to the surrounding environment. The closure member has a shaft with an end member having a irregular radial surface thereon. A first torque is applied to the irregular surface to move threads into corresponding threads in the housing to join the closure member to the housing. A self locking fastener has as stem with threads that extend from a head that engages the housing when a second torque is applied to the head. A washer retained on the stem engages the irregular surface and deforms as the second torque is applied to the head. The deformation prevents relative rotation to thereafter occur between the closure member and housing to assure that the opening in the cavity remains sealed.

REFERENCES:
patent: 137513 (1873-04-01), Turner
patent: 477222 (1892-06-01), Peck et al.
patent: 843732 (1907-02-01), Beck
patent: 894691 (1908-07-01), Norris
patent: 1088515 (1914-02-01), Bazin
patent: 1436743 (1922-11-01), Wild
patent: 1498686 (1924-06-01), Farnsworth
patent: 2178170 (1939-10-01), Hager
patent: 4267870 (1981-05-01), Warner
patent: 4953680 (1990-09-01), Flotow et al.

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