Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Cap over the head
Patent
1995-07-24
1997-05-20
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Cap over the head
411393, 411429, 411910, F16B 3714
Patent
active
056306873
ABSTRACT:
A theft resistant valve cap including a liner adapted for threaded engagement with a standard pneumatic tire stem valve, a sleeve rotatably mounted with the liner to shroud it an interlocking feature to selectively prevent axial displacement between the liner and the sleeve. The interlocking feature includes a screw threaded into an aperture in the sleeve, and an annular channel on the liner, positioned to receive the screw. The annular channel has an upper surface, a lower surface and an inner surface disposed between the upper and lower surfaces. The screw is moved so that it extends into the channel resting proximate to the upper surface, but clear of both said lower and inner surfaces. In this fashion, the liner and the sleeve are in a fixed axial position with respect to each other; however, the rotatability of the sleeve with respect to the liner is maintained, preventing removal of the liner from the stem. The rotational movement of the sleeve prevents removing the liner and/or the sleeve from the valve stem.
REFERENCES:
patent: D86154 (1932-02-01), Broecker
patent: D255540 (1980-06-01), Baylis
patent: D306420 (1990-03-01), Robinson
patent: 531701 (1895-01-01), Smith
patent: 1486448 (1924-03-01), Norlund
patent: 2633176 (1953-03-01), Fears
patent: 3152818 (1964-10-01), Ivins
patent: 4540322 (1985-09-01), Coffia
patent: 4544054 (1985-10-01), Brown
patent: 4645422 (1987-02-01), Brushaber
patent: 4869633 (1989-09-01), Hayashi
patent: 5325981 (1994-07-01), Klomhaus et al.
Saether Flemming
Schneck Thomas
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