Cutting – Tool or tool with support – Joint or connection
Reexamination Certificate
2007-08-07
2011-11-22
Alie, Ghassem (Department: 3724)
Cutting
Tool or tool with support
Joint or connection
C083S633000, C083S690000, C083S689000
Reexamination Certificate
active
08061252
ABSTRACT:
A hole punch device that reduces the force required to create a hole in papers or other sheet media. A punch element of the hole punch device includes a locally sloped or indented floor to create a bend in the sheet media as it is punched to create an enlarged, oval hole. The punch pin may include an expanding sleeve surround the pin that forms a larger diameter during the cutting stroke and springs back to a smaller diameter during a pull out stroke. A coiled torsion return spring is positioned remotely from and non-coaxially with the punch pin. A keyed pin and support frame arrangement ensures a predetermined rotational orientation of the pin for sequential cutting for reduced cutting force. A long lead-in surface in the frame helps installing sheet media into the feed slot of the punch element.
REFERENCES:
patent: 430168 (1890-06-01), Brown
patent: 926261 (1909-06-01), Krag
patent: 1785495 (1930-12-01), Richard
patent: 3073199 (1963-01-01), Yerkes
patent: 3320843 (1967-05-01), Schott, Jr.
patent: 3461756 (1969-08-01), Mojonnier
patent: 3714857 (1973-02-01), Stuertz et al.
patent: 3721144 (1973-03-01), Yamamori
patent: 4077288 (1978-03-01), Holland
patent: 4240572 (1980-12-01), Mitsuhashi
patent: 4257300 (1981-03-01), Muzik
patent: 4449436 (1984-05-01), Semerjian et al.
patent: 4594927 (1986-06-01), Mori
patent: 4623089 (1986-11-01), Scott
patent: 4656907 (1987-04-01), Hymmen
patent: 4713995 (1987-12-01), Davi
patent: 4757733 (1988-07-01), Barlow
patent: 4763552 (1988-08-01), Wagner
patent: 4829867 (1989-05-01), Nielsen
patent: 4898056 (1990-02-01), Grobb et al.
patent: 5243887 (1993-09-01), Bonge, Jr.
patent: 5463922 (1995-11-01), Mori
patent: 5611254 (1997-03-01), Rall
patent: 5638730 (1997-06-01), Karlis
patent: 5730038 (1998-03-01), Evans et al.
patent: 5813301 (1998-09-01), Fujita
patent: 6688199 (2004-02-01), Godston et al.
patent: 2005/0145085 (2005-07-01), Lee
patent: 2005/0211041 (2005-09-01), Oh
patent: 296 15 032 (1996-10-01), None
patent: 29615032 (1996-10-01), None
patent: 1332845 (2003-08-01), None
patent: 1549499 (1979-08-01), None
patent: 1568124 (1980-05-01), None
patent: 61-172629 (1986-08-01), None
patent: 64-087192 (1989-03-01), None
patent: 04059138 (1992-02-01), None
Extended European Search Report issued by the European Patent Office, dated Nov. 12, 2009.
Alie Ghassem
Feng Paul Y.
Patel Bharat C
The Eclipse Group LLP
Worktools, Inc.
LandOfFree
Hole punch element does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hole punch element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hole punch element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4312685