Piercing clamp
OwnerThomas E. DeWaninventor
Life of this patent
Estimating the term…
Abstract
A piercing clamp for sheets of paper and the like, it includes a piercing jaw containing a piercing pin, and a holding jaw, and is urged closed by a spring. It is self piercing. Once a sheet of paper is pierced within the clamp, it retains its position relative to the clamp whether the clamp is open or closed. A guard may also be included to guard the piercing pin. The piercing clamp has great utility in a hanging clipboard. By piercing divider sheets within the clamp, other sheets may be inserted between the dividers without being pierced, allowing the piercing clamp to be used as a flier.
Claims18
A piercing clamp to retain a piercable workpiece, comprising:
- a piercing jaw;
- a piercing pin within said piercing jaw;
- a holding jaw opposing said piercing jaw, configured with said piercing pin to be self piercing;
- spring means, to urge said jaws closed and to urge self piercing;
- whereby when the piercing clamp is closed, a piercable workpiece held therein is retained by said piercing pin and said jaws, and when the piercing clamp is open, the piercable workpiece is retained by said piercing pin, so that a piercable workpiece may be added to the piercing clamp without the previously retained workpiece losing its orientation within the piercing clamp;
- wherein said spring means also guards said piercing pin by means of a portion thereof being positioned over said piercing pin when said jaws are closed.
A piercing clamp, to retain a piercable workpiece, comprising:
- a piercing jaw;
- a piercing pin within said piercing jaw;
- a holding jaw opposing said piercing jaw, containing a hole that mates with said piercing pin when the piercing clamp is closed;
- spring means, to urge said jaws closed, to urge self piercing, and to guard said piercing pin by means of a portion thereof being positioned over said piercing pin when said jaws are closed;
- whereby when the piercing clamp is closed, a piercable workpiece held therein is retained by said piercing pin and said jaws, and when the piercing clamp is open, the piercable workpiece is retained by said piercing pin, so that a piercable workpiece may be added to the piercing clamp without the previously retained workpiece losing its orientation within the piercing clamp.
A piercing clamp, to retain a piercable workpiece, comprising:
- a piercing jaw;
- a plurality of piercing pins within said piercing jaw;
- a holding jaw opposing said piercing jaw, containing holes that mate with said piercing pins when the piercing clamp is closed;
- spring means, to urge said jaws closed, to urge self piercing, and to guard said piercing pin by means of a portion thereof being positioned over said piercing pin when said jaws are closed;
- handles attached to said jaws, to assist a user in urging said jaws open;
- whereby when the piercing clamp is closed, a piercable workpiece held therein is retained by said piercing pins and said jaws, and when the piercing clamp is open, the piercable workpiece is retained by said piercing pins, so that a piercable workpiece may be added to the piercing clamp without the previously retained workpiece losing its orientation within the piercing clamp.
Dependencies are inferred from the claim text.