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 Title: |
US6869117:
Magnetic locking tongs
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Blum, Alvin S.; Fort Lauderdale, FL, United States of America 33301
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| Assignee: |
None
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| Published / Filed: |
2005-03-22
/ 2004-07-07
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| Application Number: |
US2004000886199
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| IPC Code: |
Advanced:
A47G 21/10;
A47J 43/28;
IPC-7:
A47G 21/10;
A47J 43/28;
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| ECLA Code: |
A47G21/10; A47J43/28D; K47G200/10P;
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| U.S. Class: |
294/016;
294/099.2;
294/106;
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| Field of Search: |
294/003,8.5,11,16,33,99.2,106
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| Priority Number: |
| 2004-07-07 |
US2004000886199 |
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| Abstract: |
Tongs for operations with one hand have a pair of arms hinged at one end. A spring biases the second, grasping ends apart. When the arms are closed, magnetic elements on the inner aspects of the arms together to hold the arms closed and locked. To unlock the arms without the use of another hand or other accessories, a finger or thumb of the holding hand is inserted between the arms, forcing the magnetic elements apart enough to release their hold. A mechanism is provided for inactivating the magnetic lock mechanism when desired.
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| Attorney, Agent or Firm: |
Blum, Alvin S. ;
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| Primary / Asst. Examiners: |
Kramer, Dean J.;
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 17 claims |
1. Lockable tongs with a magnetic locking mechanism, the tongs comprising: a) a first arm having an inner aspect; b) a second arm having an inner aspect; c) each arm comprising a hinge end and a grasping end; d) hinge means for pivotably connecting said first and second arms together at their respective hinge ends, so that the arms can pivot between an open position and a closed position of the grasping ends; e) spring means at the hinge means cooperating with the first arm and the second arm for biasing the arms to the open position with a force easily overcome by a hand; and f) a permanent magnet mounted on the inner aspect of one of the arms intermediate the hinge end and the grasping end so as to magnetically engage the other of the arms when the arms are in the closed position with sufficient force to maintain the locked position against the spring means.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 11 U.S. patent(s) that reference this one
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