Machine element or mechanism – Control lever and linkage systems – Elements
Reexamination Certificate
2011-01-25
2011-01-25
Luong, Vinh T. (Department: 3656)
Machine element or mechanism
Control lever and linkage systems
Elements
C070S177000, C070S180000, C070S203000, C070S212000
Reexamination Certificate
active
07874230
ABSTRACT:
A lockable handle assembly, having an operating handle rotatably mounted on a frame, with a bore therein, having an axis extending laterally, a blocking bolt slideably mounted in the handle, one end of the bolt being slideable into a strike in the frame, a drum rotatably mounted in the bore, with a second end of the bolt in contact with the drum so that rotation of the drum moves the bolt into and out of the strike, a lateral hole through the handle and passing through the bore, the drum having a throughhole therein coaxial with the lateral hole in the handle when the drum is positioned with the bolt in the strike, so that a bar extending through both the throughhole in the drum and the lateral hole in the handle prevents rotation of the drum to maintain the bolt is the strike thereby preventing rotation of the handle.
REFERENCES:
patent: 1558628 (1925-10-01), Purcell
patent: 3141933 (1964-07-01), Gauthier
patent: 3171908 (1965-03-01), Malota
patent: 3690131 (1972-09-01), Davis et al.
patent: 4424424 (1984-01-01), Hollenback, Jr.
patent: 4938040 (1990-07-01), Humphreys, Jr.
patent: 5119649 (1992-06-01), Spence
patent: 5381685 (1995-01-01), Carl et al.
patent: 5881582 (1999-03-01), Monaco
patent: 6829914 (2004-12-01), Bullock
patent: 7207198 (2007-04-01), Benda
patent: 7294032 (2007-11-01), Ventura
patent: 7370499 (2008-05-01), Lee
patent: 631 819 (1982-08-01), None
patent: 42 06 378 (1993-09-01), None
patent: 0 522 848 (1993-01-01), None
patent: 639687 (1950-07-01), None
patent: 04-145813 (1992-05-01), None
Luong Vinh T.
Schneider Electric Industries SAS
Steptoe & Johnson LLP
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