US Patent: 5,522,289
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| Opening spring for pivoting hand tool
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Patentee:
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| Daniel M. Eggert (exact or similar names) - Kenosha, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 08, 1994 |
| Granted: |
Jun. 04, 1996 |
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Stan Schulz
Snap-On Tools Company History
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Description: |
| Emrich & Dithmar - patent attorneys
Abstract
A pivoting lever hand tool is provided with an opening spring which clips onto one of the lever handles and resiliently engages the other to bias the handles open. The spring has a flexible and resilient coupling channel which clips onto one handle and includes a plurality of flat panel sections extending end-to-end of the channel. A bias leaf is unitary with one of the panel sections and projects from one end thereof out of the plane thereof to engage the other handle, and terminates at a distal end which engages the one handle. The bias leaf may be provided along all or part of its length with single or double over layers, either laminated or folded over. The bias leaf may extend either away from the coupling channel or back along its length.
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