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Structure of stapler
   
Document Number
US Patent 5038992
Issued Date
August 13, 1991
Link
Inventors
Shiang; Liou H. (Chung Ho City,TW)
Jang; Chen C. (Yung An, Wu Ma Tsun, Lin Nei Hsiang, Yuen Lin Hsien,TW)
Duen; Chen S. (Lin Chung Tsun, Lin Nei Hsiang, Yuen Lin Hsien,TW)
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Abstract
A stapler for paper binding utilizes a supporting means to firmly support staples so as to make binding process easy and stable. A stapler of the present invention includes a pressure plate spring received in a pressure bar pivoted to a front-opened cartridge. The pressure plate spring includes a front striking plate and a front bumper to drive a staple for binding papers and to confine such a staple from forward inclination. A supporting wedge is received in the staple cartridge to slide in the front and to firmly support the staple which is driven downward for binding papers. Through the support of the supporting wedge and the front bumper of the striking plate of the pressure plate spring, staple is protected to straightly strike downward for binding papers efficiently.
Drawing
Structure of stapler - US Patent 5038992 Drawing
Drawing from US Patent 5038992
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Number of Claims:
9
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Owner
Published
August 13, 1991
Application Number
07/468,371
Filed
January 22, 1990
US Classification
227/120   227/139
Int'l Classification
B25C   5/00   (20060101)   B25C   5/16   (20060101)   B25C   5/02   (20060101)   B25C   5/10   (20060101)  
Examiner
USPTO Field of Search
227/120   227/139  
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