Elongated-member-driving apparatus – With means to move or guide member into driving position – Including supply magazine for constantly urged members
Patent
1999-01-15
2000-10-24
Vo, Peter
Elongated-member-driving apparatus
With means to move or guide member into driving position
Including supply magazine for constantly urged members
227 5, 227 7, B27F 0700
Patent
active
06135337&
ABSTRACT:
An electrically powered stapler is disclosed having a sliding blade for driving staples which is reciprocated by a lever and crank mechanism driven by an electric motor through a torque increasing gear train. Jamming of the stapler is prevented by mounting the lever's fulcrum on a plunger which is releasably retained to a fixed support by a flexible collar. The plunger has an enlarged head, and the collar has a plurality of flexible fingers which grip the plunger behind the head to retain the plunger to the collar. The plunger can be disengaged from the collar by the application of a predetermined force directed away from the plunger, such as occurs on the fulcrum during a jammed condition when the blade cannot drive a staple and is stalled. The pivot point of the lever then shifts to the blade end of the lever and the plunger is reciprocated by the lever instead of the blade, allowing the motor and other components to cycle through their full range of motion without stalling. The plunger is reengaged into the collar automatically as the plunger is reciprocated and the stapler is again ready to staple.
REFERENCES:
patent: 2770805 (1956-11-01), Elzer et al.
patent: 3278101 (1966-10-01), Hatazaki
patent: 3423002 (1969-01-01), Hatazaki et al.
patent: 3625408 (1971-12-01), Moriguchishi et al.
patent: 3666157 (1972-05-01), Kawal et al.
patent: 3766455 (1973-10-01), Zakrewsky et al.
patent: 4199095 (1980-04-01), Yamonoi
patent: 4491260 (1985-01-01), Jimena
patent: 4508329 (1985-04-01), Hubler et al.
patent: 4558391 (1985-12-01), Ward et al.
patent: 4720033 (1988-01-01), Olesen
patent: 4726505 (1988-02-01), Okazaki
patent: 4811885 (1989-03-01), Lai
patent: 5007572 (1991-04-01), Chung-Cheng
patent: 5009355 (1991-04-01), Akizawa et al.
patent: 5012967 (1991-05-01), Johansson
patent: 5195671 (1993-03-01), Shimomura et al.
patent: 5222645 (1993-06-01), Sueda
patent: 5282564 (1994-02-01), Rio
patent: 5330086 (1994-07-01), Shimomura et al.
patent: 5335838 (1994-08-01), Harris et al.
patent: 5413266 (1995-05-01), Jairam
patent: 5460314 (1995-10-01), Udagawa
patent: 5529234 (1996-06-01), Juneau
patent: 5803337 (1998-09-01), Fukai et al.
Catalog pages entitled Rapid 65 Electric The silent stapler (2 pages) by Rapid, identified on page 2 as 10,000 Eng. 93. 11. No. 11 (dated Nov. 1993).
Catalog pages entitled EF Rapid 90 Electric Power Stapler (2 pages) Nov. 1993 by Eberhard Faber.
Catalog page entitled EF Rapid 100E Electric Power Stapler (2 pages) Sep. 1993 by Eberhard Faber.
Catalog pages entitled Rapid 65 Electric The silent stapler (2 pages) by Rapid Nov. 1993.
Fregeolle Gerald P.
Harris James M.
Karg Jeffrey A.
Tyndell David F.
Calve Jim
Hunt Holdings, Inc.
Vo Peter
LandOfFree
Electric stapler does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric stapler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric stapler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1955265