US Patent No: 6,308,378
Number of patents in Portfolio can not be more than 2000
Frictional gripping arrangement for a power tool handle
Stats
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Oct 30, 2001
Issued date -
May 24, 2000
filing date -
09/577,652
serial no -
In Force
status
Importance
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Abstract
An arrangement of frictional gripping zones on the handle of a power tool is disclosed. The power tool has a main body portion and a handle portion depending from the main body portion. The handle portion includes a first side region, a second side region opposite the first side region, a rear region connecting the first and second side regions along a rear of the handle portion, and a front region connecting the first and second side regions along a front of the handle portion. A plurality of alternating first and second gripping zones extend longitudinally along each of the first and second side regions of the handle portion. The first gripping zones are made the first gripping zones being made from a first material and the second gripping zones are made from a second material different from the first material. Preferably, the material of the second gripping zones have a hardness greater than the material of the first gripping zones. Furthermore, a third gripping zone is made from the second material and extends longitudinally along substantially the entire front and rear regions of the tool handle. The first gripping zones are preferably sized and configured to correspond to the contour of the power tool handle to provide the user with an efficient frictional gripping when operating the power tool.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,718,014 Hand held motorized tool with over-molded cover | 54 | 1996 | |
| D418730 Drill | 20 | 1999 | |
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| 6,149,356 Portable pneumatic tool assembled with module units | 16 | 1999 | |
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| D419413 Electric drill | 73 | 1999 | |
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| 5,311,949 Power screwdriver handle configuration | 16 | 1992 | |
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| 5,390,572 Tool with immproved impact and torque capabilities and having ergonomic handle | 103 | 1993 | |
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| 5,873,148 Ergonomic handle system | 20 | 1997 | |
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| 5,353,474 Transferrable personalized grip for a handle assembly and method for making same | 57 | 1993 | |
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| 5,740,586 Tool handle | 64 | 1995 | |
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| 5,781,958 Brush handle | 73 | 1996 | |
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| 5,511,445 Flexible hand grip for handles | 97 | 1994 | |
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| 4,711,308 Hand-held tool with vibration dampening | 29 | 1986 | |
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| 4,771,833 Portable tool with vibration damping | 23 | 1988 | |
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| 5,862,571 Comfort grip handle and process | 8 | 1997 | |
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| D315855 Portable electric wrench | 27 | 1988 | |
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| 4,986,147 Ratchet wrench having an internally reinforced handle | 56 | 1990 | |
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| 5,856,715 Portable electrical power tool having a rare earth permanent magnet motor | 22 | 1996 | |
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| 6,237,193 Compressible handle | 13 | 1999 | |
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| 5,819,594 Ergonomic hand grip | 17 | 1996 | |
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| 5,781,963 Coextruded screwdriver handle and method of making same | 40 | 1995 | |
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| 5,475,894 Handgrip for a tool and method of making same | 30 | 1994 | |
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| 5,530,989 Dual durometer handles | 37 | 1994 | |
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| 5,857,241 Soft grip handle | 25 | 1997 | |
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| 4,739,536 Screwdriver handgrip having harder and softer zones | 55 | 1986 | |
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| 4,721,021 Handle structure | 51 | 1986 | |
| 4,820,090 Multipurpose handle grip for holding electric tools | 66 | 1988 | |
| D333959 Bulls eye drill motor | 3 | 1991 | |
| 5,606,772 Ergonomic handle grip for tools | 27 | 1995 | |
| 5,722,116 Tool handgrip having a simplified longitudinal softer zones | 15 | 1996 | |
| 6,119,681 Butane heated multipurpose tool including glue gun function | 4 | 1997 | |
| 5,822,830 Handle for L shaped tool | 11 | 1997 | |
| 6,148,701 Tool handle with high driving torque | 22 | 1999 | |
| 6,161,256 Drill handle cover | 34 | 1999 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 30, 2013 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |