Claims
- 1. An apparatus for applying staples to a workpiece, which comprises:
- an anvil which comprises a flat surface defining a at least one recess of elongated shape having a major and a minor axis perpendicular to each other, and having opposed sides that slope inwardly to a maximum depth, and
- a stapling apparatus for driving legs of staples against said opposed, sloped sides while the staple is held at an acute angle to the minor axis of substantially 45.degree. to 60.degree..
- 2. The apparatus of claim 1 in which each said recess also defines inwardly sloping end walls.
- 3. The apparatus of claim 1 in which the at least one recess of said anvil comprises at least one pair of oval recesses, the major axis of each oval recess defining an acute angle to the major axis of the other recess of the pair, whereby said staples may be emplaced in substantially parallel relation.
- 4. The apparatus of claim 1 in which each said elongated recess is substantially oval.
- 5. The apparatus of claim 4 in which each said substantially oval recess defines end walls of substantially spherical shape, a portion of said recess extending between said end walls being of substantially cylindrical shape.
- 6. The apparatus of claim 5 in which the at least one recess of said anvil defines at least one pair of oval recesses, the major axis of each oval recess defining an acute angle to the major axis of the other recess of the pair.
- 7. The apparatus of claim 6 in which each substantially oval recess defines end walls of substantially spherical shape, a portion of said recess extending between said end walls being of substantially cylindrical shape.
- 8. The apparatus of claim 1 in which the staple had an oval cross section.
- 9. The apparatus of claim 1 which carries a staple of oval cross-section.
- 10. An apparatus for applying staples to a workpiece, which comprises:
- an anvil which comprises a flat surface defining at least one pair of oval recesses, each recess having a major and a minor axis perpendicular to each other and having opposed sides that slope inwardly to a maximum depth, the major axis of one oval recess of each pair defining an acute angle to the major axis of the other recess of the same pair, and
- a stapling apparatus for driving legs of staples against said opposed, sloped sides of each said pair of recesses while each staples are held at an acute angle to both said major and minor axes, whereby said staples being driven against the opposed, sloped sides of the recesses of said pair may be emplaced in substantially parallel relation to each other.
- 11. The apparatus of claim 10 in which each said recess also defines inwardly sloping end walls.
- 12. The apparatus of claim 11 in which each substantially oval recess defines end walls of substantially spherical shape, a portion of each said recess extending between said end walls being of substantially cylindrical shape.
- 13. The apparatus of claim 12 in which the acute angle of each staple to the minor axis is substantially 45.degree. to 60.degree..
- 14. The apparatus of claim 10 which carries a staple of oval cross-section.
- 15. An apparatus for applying staples to a workpiece, which comprises:
- an anvil which comprises a flat surface defining at least a pair of recesses of substantially oval shape, said oval recesses each having a major and a minor axis perpendicular to each other, and having opposed sides that slope inwardly to a maximum depth, said substantially oval recesses further defining end walls of substantially spherical shape, a portion of each said recess extending between said end walls being of substantially cylindrical shape, the major axis of each oval recess of said pair defining an acute angle to the major axis of the other oval recess of said pair, and
- a stapling apparatus for driving legs of staples against said opposed sloped sides of said recess, while each staple is held at an acute angle to both said major and minor axes.
- 16. The apparatus of claim 15 which carries a staple of oval cross-section.
- 17. The apparatus of claim 16 in which the acute angle of each staple to the minor axis is substantially 45.degree. to 60.degree..
- 18. The apparatus of claim 17 in which said staples driven into said pair of recesses are emplaced in substantially parallel relation.
Parent Case Info
This is a division of application Ser. No. 08/116,971, filed Sep. 7, 1993, now abandoned which is a continuation-in part of U.S. application Ser. No. 07/942,584, filed Sep. 9, 1992, now U.S. Pat. No. 5,337,946.
US Referenced Citations (20)
Foreign Referenced Citations (1)
Number |
Date |
Country |
WO8300614 |
Mar 1983 |
WOX |
Divisions (1)
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Number |
Date |
Country |
Parent |
116971 |
Sep 1993 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
942584 |
Sep 1992 |
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