HIGH-START COMPACT SPRING ENERGIZED STAPLER

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20080308599A1
SERIAL NO

11847132

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A spring energized stapler includes a 'high-start' design wherein a striker has an initial rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move father than a cage front end travel distance. A lever links the striker to the power spring to provide leverage upon the power spring. The lever and cage/spring subassembly are nested in a compact assembly. A safety lock includes a two step action to restrict motion of the striker, and fits a notch in a bottom of the striker.

First Claim

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Patent Owner(s)

Patent OwnerAddress
WORKTOOLS INC20755 PLUMMER STREET CHATSWORTH CA 91311

International Classification(s)

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  • 2007 Application Filing Year
  • B25C Class
  • 141 Applications Filed
  • 92 Patents Issued To-Date
  • 65.25 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20072008200920102011201220132014201520160255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Marks, Joel S Sherman Oaks, CA 88 954

Cited Art Landscape

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Patent Citation Ranking

  • 7 Citation Count
  • B25C Class
  • 3.13 % this patent is cited more than
  • 17 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges19883301 - 1011 - 2021 - 3031 - 4051 - 6000.511.522.533.544.555.566.577.588.599.5

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