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Class Information
Number: 173/51
Name: Tool driving or impacting > Power paths to plural tools from single drive > Drive plural means to reciprocate hammer heads or tools
Description: Apparatus in which at least two of the power paths include means to impart a rectilinear to and fro movement to a tool or the hammer head or an impact delivering device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7568529 |
Drill tool |
Aug. 4, 2009 |
| 7013986 |
Impact tool |
Mar. 21, 2006 |
| 6152245 |
Compressed-air-operated percussion mechanism |
Nov. 28, 2000 |
| 5111801 |
Apparatus for forming slit in rock and concrete surface |
May. 12, 1992 |
| 4947532 |
Scaler holder |
Aug. 14, 1990 |
| 4825960 |
Synchronized hydraulic hammer arrangement |
May. 2, 1989 |
| 4632190 |
Pneumatically-operated multi-needle chisel tool |
Dec. 30, 1986 |
| 4630687 |
Percussion device |
Dec. 23, 1986 |
| 4605073 |
Device in needle hammers |
Aug. 12, 1986 |
| 4452316 |
Power hoe with reciprocating blades in sliding engagement with each other |
Jun. 5, 1984 |
| 4247149 |
Mechanically actuated impact mechanism |
Jan. 27, 1981 |
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