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Browse by Category: Main > Tools & Hardware
Class Information
Number: 173/114
Name: Tool driving or impacting > Impacting devices (e.g., hammers) > With means to reciprocate tool
Description: Apparatus including an additional means to reciprocate the tool.










Patents under this class:
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Patent Number Title Of Patent Date Issued
6454021 Impact machine Sep. 24, 2002
6443238 Method of securing multiple walls Sep. 3, 2002
6311785 Method of securing walls with a tie Nov. 6, 2001
6241027 Hand operated electric tool, especially a jigsaw Jun. 5, 2001
6234255 Adjustable stroke for a reciprocating saw May. 22, 2001
6223833 Spindle lock and chipping mechanism for hammer drill May. 1, 2001
6161628 Pneumatic tool Dec. 19, 2000
6135871 Pneumatic animal stunner Oct. 24, 2000
6119795 Hydraulic hammer having improved seal ring Sep. 19, 2000
6095394 Pneumatic hammer Aug. 1, 2000
6000310 Penetrated tool system Dec. 14, 1999
5954140 Rotary hammer with improved pneumatic drive system Sep. 21, 1999
5845719 Vibrating cutting machine Dec. 8, 1998
5816341 Hammer mechanism Oct. 6, 1998
5806608 Air-driven post driver Sep. 15, 1998
5787996 Drilling and/or chiseling tool Aug. 4, 1998
5769173 Vibration exciter machine Jun. 23, 1998
5732782 Drilling and chiseling tool Mar. 31, 1998
5730230 Rotary percussion drill Mar. 24, 1998
5725058 Hand-held reciprocating tool Mar. 10, 1998
5687801 Method of securing walls with a tie Nov. 18, 1997
5678641 Drilling and chipping tool Oct. 21, 1997
5607022 Concrete drop hammer attachment device Mar. 4, 1997
5586605 Multi-wall tie apparatus Dec. 24, 1996
5562168 Impact hammer and driving tool Oct. 8, 1996
5556649 Device for removing runners from molded products Sep. 17, 1996
5533580 Tie rod loosening tool for use with a tie rod assembly Jul. 9, 1996
5407017 Hammer for removing gates or risers from castings Apr. 18, 1995
5092411 Drilling apparatus Mar. 3, 1992
5083499 Impact motor with improved sealing of a drive piston Jan. 28, 1992
5012874 Movable tool head for mounting machines and a rotatable, axially movable shaft therefor May. 7, 1991
5002136 Damped hammer drill Mar. 26, 1991
4984640 Power post driver and hammer Jan. 15, 1991
4759412 Rock breaking device Jul. 26, 1988
4727941 Power operated reciprocating hand tool Mar. 1, 1988
4632190 Pneumatically-operated multi-needle chisel tool Dec. 30, 1986
4550784 Tool mounting means for a hydraulically powered impact hammer Nov. 5, 1985
4508017 Fluid-control system for a hydraulic percussion instrument Apr. 2, 1985
4491444 Tool holder device Jan. 1, 1985
4434859 Hammer drill for performing rotary drilling or percussive drilling Mar. 6, 1984
4302053 Mounting block to rotate coal cutter bits Nov. 24, 1981
4203446 Precision spring lancet May. 20, 1980
4109734 Percussion machine Aug. 29, 1978

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