Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate
2011-03-01
2011-03-01
Meislin, D. S (Department: 3727)
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
C081S061000
Reexamination Certificate
active
07895920
ABSTRACT:
A ratchet wrench devised for torquing axially placed hexagonal nut fasteners on hydraulic or similar lines. The wrench is formed of two main components: The first component consists mainly of a straight elongated handle with a semi-circular collar head attached thereto opening to one side. The collar houses three identical metal inserts which when assembled therein form half a peripherally ratcheting wheel with half an axial inner hexagonally shaped socket of predetermined dimensions. The second main component comprises a second mirror-image semi-circular collar housing identical metal inserts, with a tangentially protruding pin member which slides into a slot disposed in the first component. The two components assembled together form a ratcheting wrench with a wheel having an axial hexagonal slot which circumscribes the fastener to be torqued. A spring-biased pawl disposed in the main component engages the ratchet wheel. Spring-biased latches and other mechanisms disposed within the wrench head provide smooth and fast engagement and disengagement of the two head components.
REFERENCES:
patent: 915443 (1909-03-01), Jones
patent: 1123958 (1915-01-01), Vacareza
patent: 1196416 (1916-08-01), Aliff
patent: 2445969 (1948-07-01), Powell
patent: 2446776 (1948-08-01), Matson
patent: 2521419 (1950-09-01), Sellers
patent: 2636411 (1953-04-01), Wood
patent: 2757564 (1956-08-01), Reaves
patent: 2982162 (1961-05-01), Golden
patent: 4095494 (1978-06-01), Castoe
patent: 4258595 (1981-03-01), Ramsey
patent: 4441387 (1984-04-01), Hendricks
patent: 4562757 (1986-01-01), Furey
patent: 5113726 (1992-05-01), Ethridge
patent: 5277087 (1994-01-01), Wilson et al.
patent: 5377566 (1995-01-01), Mandigo
patent: 5467672 (1995-11-01), Ashby
patent: 5501124 (1996-03-01), Ashby
patent: 5960679 (1999-10-01), Schulthels
patent: 2004/0194589 (2004-10-01), Stanton
patent: 2005/0044999 (2005-03-01), Slepekis
patent: 2006/0137492 (2006-06-01), Melos
patent: 2006/0230882 (2006-10-01), DeCaprio
patent: 2008/0022812 (2008-01-01), Decaprio
Abelman ,Frayne & Schwab
Meislin D. S
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