Claims
- 1. A hand operated punch comprising:
- a) a base having an elongated length with an upper surface and a bottom facing opposite said upper surface;
- b) a plurality of adjustable punch assembly heads adjustably mounted on the upper surface of said base and selectively positionable at a plurality of locations along said elongated length of said base;
- c) a base opening passing through the base from the upper surface to the bottom of said base at each of said plurality of locations;
- d) a slipper adjustably positioned on said base in covering relation to said bottom of said base; and
- e) an elongated slipper opening extending through said slipper and aligned with and exposing each base opening, whereby the punch assembly heads are adjustable with the slipper on said base.
- 2. A hand-operated punch comprising:
- a) a base having an elongated length and an upper surface, a bottom, an outer periphery,
- b) a plurality of punch heads adjustably mounted on the upper surface of said base for positioning at a plurality of locations along a path extending parallel to said elongated length of said base;
- c) a base opening passing through said base from said upper surface to said bottom at each of said plurality of locations;
- d) adjustment means connected to each of said heads for adjusting the positioning of the heads at said plurality of locations, said adjusting means extending through each of said base openings and accessible from said bottom of said base; and
- e) a slipper positioned on the base in covering relation to said bottom, said slipper having a slipper opening extending through said slipper and aligned with said base opening at each of said locations to permit access to said adjustment means.
- 3. The punch of claim 2 wherein the slipper includes:
- a) a slipper bottom with an outer periphery corresponding to the outer periphery of said base;
- b) upstanding flanges extending along said outer periphery of said slipper bottom for positioning said slipper on said base with the slipper bottom spaced from said bottom of said base;
- c) a cowling disposed around said slipper opening and extending upwardly from said slipper bottom to define a chamber between said cowling and said upstanding flanges, said cowling extending upwardly to a height sufficiently near said bottom of said base to isolate said slipper opening from said chamber.
- 4. The punch of claim 3 wherein:
- a) the slipper is adjustably mounted on said base for sliding movement along said path;
- b) said adjustment means extend into said slipper opening and into the path of movement of said cowling so as to be engaged thereby to limit the sliding movement of said slipper.
- 5. The punch of claim 4 wherein:
- a) each of said adjustment means includes a retaining screw threadably engaged in a threaded opening in one of said heads.
Parent Case Info
This is a continuation of application Ser. No. 08/697,934, filed Sep. 3, 1997, now U.S. Pat. No. 5,797,308 which is a divisional of application Ser. No. 08/516,022, filed Aug. 17, 1995 now U.S. Pat. No. 5,787,783.
US Referenced Citations (25)
Non-Patent Literature Citations (2)
Entry |
Office Depot Catalog 27, Fall, 1995, "ACCO Lever Paper Punch", includes picture and description of adjustable 3-hole paper punch, Part # 996-926. |
Office Depot Catalog 33, Fall 1997, "ACCO Model 20L Lever Adjustable Punch", includes picture and description of adjustable 3-hole paper punch, Part # 996-926. |
Divisions (1)
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Number |
Date |
Country |
Parent |
516022 |
Aug 1995 |
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Continuations (1)
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Number |
Date |
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Parent |
697934 |
Sep 1996 |
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