Chucks or sockets – Socket type – Obliquely guided reciprocating jaws
Reexamination Certificate
2011-03-01
2011-03-01
Gates, Eric A (Department: 3726)
Chucks or sockets
Socket type
Obliquely guided reciprocating jaws
C279S140000, C279S902000
Reexamination Certificate
active
07896356
ABSTRACT:
The present invention discloses a chuck mounted on a transmission shaft driven by a power source, and the chuck comprises a chuck body, plural jaws, a rear cap, an outer sleeve rotatablely fitted around the chuck body and located in front of the rear cap, and a transmission nut, characterized in that the chuck further comprises a drive pendulum support sleeve which is located between the outer sleeve and the transmission nut, connected with the outer sleeve and fitted around the chuck body; and a drive pendulum which is mounted on the drive pendulum support sleeve, swings between a first and second positions about its pivot axis, and has first and second drive portions, wherein the drive pendulum drives the transmission nut along a first transmission path through the first drive portion when it is in the first position, and drives the transmission nut along a second transmission path of more gripping force than the first transmission path through the second drive portion when it is in the second position. The present invention can provide greater gripping force, and is simple in structure and convenient in control.
REFERENCES:
patent: 1357935 (1920-11-01), Argetsinger
patent: 2240556 (1941-05-01), Eide
patent: 3970323 (1976-07-01), Schnizler, Jr.
patent: 4213623 (1980-07-01), Rohm
patent: 4260169 (1981-04-01), Hall
patent: 4302021 (1981-11-01), Rohm
patent: 4398733 (1983-08-01), Mosley, Jr.
patent: 4456271 (1984-06-01), Kern et al.
patent: 4695065 (1987-09-01), Komatsu et al.
patent: 5031925 (1991-07-01), Tatsu et al.
patent: 5172923 (1992-12-01), Nakamura
patent: 5232230 (1993-08-01), Lin
patent: 5435578 (1995-07-01), Rohm
patent: 5499830 (1996-03-01), Schnizler
patent: 7503565 (2009-03-01), Rohm
patent: 7556269 (2009-07-01), Cachod
patent: 7690658 (2010-04-01), Puzio et al.
patent: 7726663 (2010-06-01), Mack et al.
patent: 7726917 (2010-06-01), Mack
patent: 2007/0069484 (2007-03-01), Bordeianu
patent: 2008/0217869 (2008-09-01), Mack
patent: 2010/0207336 (2010-08-01), Mack
patent: 2059607 (1990-07-01), None
patent: 1053206 (1991-07-01), None
patent: 2480087 (2002-03-01), None
patent: 2671723 (2005-01-01), None
patent: 1575921 (2005-02-01), None
patent: 3713457 (1988-09-01), None
patent: 02172605 (1990-07-01), None
patent: 03049808 (1991-03-01), None
patent: WO 02/100583 (2002-12-01), None
Li Guijie
Zhou Zexin
Gates Eric A
Hoffmann & Baron , LLP
Shandong Weida Machinery Co., Ltd.
LandOfFree
Drill chuck with two-stage gripping does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drill chuck with two-stage gripping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill chuck with two-stage gripping will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2775353