Hole punch element
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 18, 2013
Grant Date -
Mar 1, 2012
app pub date -
Nov 7, 2011
filing date -
Aug 30, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2011 Application Filing Year
- B26D Class
- 386 Applications Filed
- 226 Patents Issued To-Date
- 58.55 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- B26D Class
- 9.15 % this patent is cited more than
- 12 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 18, 2024 |
