Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1993-04-14
1994-06-14
Luong, Vinh T.
Machine element or mechanism
Control lever and linkage systems
Elements
74557, 74527, 74548, 292 66, 2923363, 16112, G05G 110, E05C 502
Patent
active
053199928
ABSTRACT:
A rapid locking device including: a handle formed with a curved portion at one end, two lugs at another end, a first hole between said two lugs, and an opening below the hole; a fixing member with a threaded hole and a second hole; a center rod threadedly engaged with the threaded hole of said fixing member; an axle extending through the lugs of said handle and said fixing member; a spring-loaded pin inserted into the first hole of said handle; and a button disposed within the opening of said handle and connected with a lower end of said spring-loaded pin, whereby the handle may be firmly and quickly kept in a fixed position.
REFERENCES:
patent: 3769853 (1973-11-01), Schluckebier
patent: 3857300 (1974-12-01), O'Dell et al.
patent: 4033010 (1977-07-01), McCalla
patent: 4162805 (1979-07-01), Hirschberger
patent: 4456219 (1984-06-01), Scott et al.
patent: 4475415 (1984-10-01), Yamamoto
patent: 4674777 (1987-06-01), Guelck
patent: 4702504 (1987-10-01), Brothers
patent: 4917303 (1990-04-01), Maas et al.
patent: 5072913 (1991-12-01), Carroll et al.
Lei Alfred
Luong Vinh T.
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