Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate
2011-07-12
2011-07-12
Thomas, David B (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
C192S043000
Reexamination Certificate
active
07975573
ABSTRACT:
A ratchet mechanism contains a chamber defined by at least one gear surface, a rotating member positioned at least partially within the chamber, a gear member rotatably attached to the rotating member and positioned at least partially within the chamber, and a stop member engaging the rotating member, such that the rotating member and the stop member rotate in unison. The center of rotation of the gear member is offset from the center of rotation of the rotating member. The gear member includes a gear body having a plurality of gear teeth around an outer periphery thereof. At least a portion of the gear teeth engage the gear surface. The gear member can rotate freely in a first rotational direction, and a portion of the stop member abuts a portion of the gear member to prevent rotation of the gear member in a second, opposed rotational direction.
REFERENCES:
patent: 1050757 (1913-01-01), Annable et al.
patent: 1936640 (1933-11-01), Pfauser
patent: 1981526 (1934-11-01), Rueb
patent: 2119622 (1938-06-01), Freber
patent: 2351996 (1944-06-01), Morgan
patent: 2469572 (1949-05-01), Pratt
patent: 2542323 (1951-02-01), Gearhart
patent: 2565961 (1951-08-01), Godfrey
patent: 2834239 (1958-05-01), Mancini
patent: 3019872 (1962-02-01), Morris et al.
patent: 3444767 (1969-05-01), Cupler
patent: 4669339 (1987-06-01), Cartwright
patent: 4884478 (1989-12-01), Lieser
patent: 4924737 (1990-05-01), Gummow
patent: 5136901 (1992-08-01), Williams
patent: 5199329 (1993-04-01), Hsu
patent: 5269207 (1993-12-01), Kutzler
patent: RE34680 (1994-08-01), Lieser
patent: 5351583 (1994-10-01), Szymber et al.
patent: 5404773 (1995-04-01), Norville
patent: 5499559 (1996-03-01), Lin
patent: 5943921 (1999-08-01), Lin
patent: 6044944 (2000-04-01), Adams et al.
patent: 6067881 (2000-05-01), Albertson
patent: 6116119 (2000-09-01), Williams
patent: 6209422 (2001-04-01), Kamiya et al.
patent: 6276239 (2001-08-01), Albertson
patent: 6357323 (2002-03-01), Chi et al.
patent: 6575058 (2003-06-01), Mitchell
patent: 7036400 (2006-05-01), Matsumoto et al.
patent: 2003/0015386 (2003-01-01), Gummow
patent: 2006/0102442 (2006-05-01), Dein
patent: 2006/0108194 (2006-05-01), Phillips
patent: 2007/0163398 (2007-07-01), Lai Lee
Banner & Witcoff , Ltd.
Thomas David B
LandOfFree
Hand tool with stepless locking mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hand tool with stepless locking mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hand tool with stepless locking mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2632977