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 Title: |
US5121956:
Tong structure
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Horkey, Edward J.; Phoenix, AZ
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| Assignee: |
Horkey & Associates, Inc., Tempe, AZ
other patents from HORKEY & ASSOCIATES, INC. (683408) (approx. 2)
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| Published / Filed: |
1992-06-16
/ 1991-07-22
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| Application Number: |
US1991000733447
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| IPC Code: |
Advanced:
F24B 1/199;
Core:
F24B 1/00;
IPC-7:
B25J 1/06;
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| ECLA Code: |
F24B1/199;
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| U.S. Class: |
Current:
294/099.2;
294/011;
Original:
294/099.2;
294/011;
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| Field of Search: |
294/99.2,8.5,11,33,50.8,50.9
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| Priority Number: |
| 1991-07-22 |
US1991000733447 |
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| Abstract: |
A tong apparatus having first and second hand grippable members, a first work gripping element associated with the first hand grippable member, and a second work gripping element associated with the second hand grippable member, the improvement comprising structure for amplifying movement of the first work gripping element relative to movement of the second work gripping element and also relative to the first hand grippable member, in response to relative movement of the first and second hand grippable members. Amplification of motion of the work gripping elements is provided, aiding in pick-up of both large and small work pieces. The surfaces for the operator to grasp are long enough that two hands may conveniently be used, if required, for heavy loads.
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| Attorney, Agent or Firm: |
Haefliger, William W. ;
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| Primary / Asst. Examiners: |
Song, Robert R.; Pape, Joseph D.
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 8 claims |
I claim:
1. In tong apparatus having first and second hand grippable members, a first work gripping element associated with the first hand grippable member, and a second work gripping element associated with the second hand grippable member, the improvement comprising:
- a) means for amplifying movement of the first work gripping element relative to movement of the second work gripping element and also relative to the first hand grippable member, in response to relative movement of said first and second hand grippable members,
- b) said means including first and second arms respectively integral with said hand grippable members, and a first auxiliary arm integral with the first work gripping element, and having operative pivotal connection to said first arm, and indirect pivotal connection to said second arm, said first auxiliary arm comprising a lever having operative fulcrum connection with said first arm,
- c) said means including a link having a primary pivotal connection with said lever in spaced relation to said fulcrum connection, and secondary pivotal connection with said second arm,
- d) there being first spacing between said fulcrum connection and said primary pivotal connection, and second spacing between said primary and secondary pivotal connections, said first spacing exceeding said second spacing.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 3 U.S. patent(s) that reference this one
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