Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closure checks
Patent
1997-11-28
2000-03-07
Mah, Chuck Y.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Closure checks
16 66, 16 49, E05F 502
Patent
active
060323310
ABSTRACT:
An improved mechanism (22) for checking reciprocating operative devices (10) to include door systems, by means of an improved rocker-washer mechanism (22) adapted to pivot (24) and frictionally engage the device (10) comprising at least one rod (16) that reciprocatively functions from within a body (12) having a biasing operative means (11), that upon extension of said rod (16) from said body (12), the bias 11-A and 11-B acting to control the reciprocation of said rod (16); the mechanism (22) including a central structure (34) forming an aperture configuration (26) which is mountable and disposable axially (17) upon the surface of the rod (16), said aperture (26) bounding two opposing loci (26-A) and (26-B) relationally composed upon a common axis of symmetry (32) which is realized when mounted upon a cross-section of the rod (16); each locus (26-A) and (26-B) comprising at least one metallic point (28) for creating a substantial friction pressure torsionally applied onto said rod (16) to engage said mechanism (22); the opposing torsion pressure (29) comprised within an axial plane (30) of the mechanism (22) upon said rod (16); said central structure (34) fixated to a trigger plate appendage (38) means to form an angular joint (42) generally of substantially 90 degrees or less at the origin, projectable upon a side view of the rocker-washer mechanism (22) wherein said angle comprises one axis (42-A) projecting upon the face of said central structure (34), and comprises the other axis (42-B) projecting from said origin; said trigger plate appendage (38) further comprising a variable trigger area (40) for transposing said torsion (29), adapted to abut against said body (12) of the device (10), said trigger plate appendage (38) composed as to define said variable trigger area (40) disposable upon a substantial curvature surface, wherein the area (40) permits the means for variable adjustment of said mechanism (22) upon a variable plane (42-C) projected from the axis of origin (40-B), and projected to said trigger area (40); whereby said improvements comprise a superior mechanism (22) for frictionally checking said device (10) upon engagement, thus providing the maximum torsional pressure (29) within the axial plane (30) of said mechanism (22).
REFERENCES:
patent: 2732920 (1956-01-01), Newton
patent: 2920338 (1960-01-01), Falk
patent: 3032806 (1962-07-01), Mallory
patent: 3162889 (1964-12-01), Runnels
patent: 3566435 (1971-03-01), Nakamura
patent: 3665549 (1972-05-01), Quinn
patent: 4194264 (1980-03-01), Stoffregen
patent: 4777698 (1988-10-01), Lord
patent: 4815163 (1989-03-01), Simmons
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