Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1987-06-22
1988-09-13
Smith, Gary L.
Machine element or mechanism
Control lever and linkage systems
Elements
74 99A, 74527, 74523, 74530, 74543, 192 93A, G05G 104, G05G 506
Patent
active
047700572
ABSTRACT:
This lever element comprises a hollow lever body of polymeric material ending at one end with a handgrip, and at another end with an upturned U-shaped end portion surounding and partially containing a rigid support of polymeric material, having a circular portion with a first front teeth formation. The upturned U-shaped end portion of the lever is rotatively rigid with a disc having a second front teeth formation facing the first teeth formation of the support for retaining the lever; elastic means being provided for pushing the disc into frontal contact engagement with the support, and mutually engaging the first and second front teeth formations. Furthermore release means, controlled by a pushbutton on the lever, are interposed between the support and the disc for controlled release of their frontal contact engagement.
REFERENCES:
patent: 3525272 (1970-08-01), Olson
patent: 3701333 (1972-10-01), Schwerdhoefer
patent: 3827313 (1974-08-01), Kiessling
patent: 3941008 (1976-03-01), Cambria
patent: 4289309 (1981-09-01), Hoffmann
patent: 4507601 (1985-03-01), Andresen
patent: 4515033 (1985-05-01), Carlo
patent: 4541298 (1985-09-01), Strutt
patent: 4565151 (1986-01-01), Buma
Foggini Progetti SRL
Josif Albert
Luong Vinh
Modiano Guido
Smith Gary L.
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