Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Tools & Hardware
Class Information
Number: 173/126
Name: Tool driving or impacting > Impacting devices (e.g., hammers) > Hammer head comprises plural parts or diverse materials
Description: Apparatus in which the hammer head is composed of (1) at least two separate elements or (2) at least two separate materials.










Sub-classes under this class:

Class Number Class Name Patents
173/127 Piston of drive motor 29


Patents under this class:

Patent Number Title Of Patent Date Issued
8353360 Pile driver Jan. 15, 2013
8276683 Combination post and insertion tool therefor Oct. 2, 2012
8240682 Jackhammer trolley Aug. 14, 2012
7900538 Packable battering ram Mar. 8, 2011
7624815 Powered hammer with vibration dampener Dec. 1, 2009
7527106 Method for operating the engine of fastening tool May. 5, 2009
7182149 Pneumatic wrench having reinforced strength Feb. 27, 2007
7089694 Sign post assembly and method for the same Aug. 15, 2006
6029753 Increased efficiency percussion piston and method for operating same Feb. 29, 2000
5931243 Hammer device Aug. 3, 1999
5803188 Hydraulically driven percussion hammer Sep. 8, 1998
5727639 Pile driving hammer improvement Mar. 17, 1998
5662179 Hole-making device Sep. 2, 1997
5556649 Device for removing runners from molded products Sep. 17, 1996
5542479 Hand operated impact tool Aug. 6, 1996
5511626 Hydraulically operated subsoil displacement apparatus Apr. 30, 1996
5337837 Dual-diameter pneumatic ground piercing tool Aug. 16, 1994
5117920 Pole driver Jun. 2, 1992
5086849 Apparatus useful in driving electrical ground rods Feb. 11, 1992
5038874 Drill bit having a flushing medium channel Aug. 13, 1991
5029651 Post driver Jul. 9, 1991
4813494 Stake driver Mar. 21, 1989
4751970 Angular attachment for transmitting and deviating output power of a machine Jun. 21, 1988
4610188 Magnetic driving tool Sep. 9, 1986
4569402 Method of controlling impact force and shock interval in drop hammers Feb. 11, 1986
4558747 Impact devices Dec. 17, 1985
4462468 Ram head for self-driven pneumatic ram drills Jul. 31, 1984
4448264 Ground rod driving pole May. 15, 1984
4427078 Pile-driving ram Jan. 24, 1984
4413686 Wedge arrangement for locking together hammerhead and anvil Nov. 8, 1983
4350214 Ram block Sep. 21, 1982
4335622 Soil gas probe Jun. 22, 1982
4293045 Impacting device Oct. 6, 1981
4253706 Magnetic breaker bar Mar. 3, 1981
4252472 Fixing posts in the ground Feb. 24, 1981
4226287 Apparatus for pile driver cushion recoil Oct. 7, 1980
4132108 Ram assembly for electromagnetic high energy impact apparatus Jan. 2, 1979
4124090 Bounceless seismic wave generator Nov. 7, 1978
4106298 Device for the production of earth holes Aug. 15, 1978
4094364 Percussion drill rod Jun. 13, 1978
3939922 Hydraulic hammer assembly Feb. 24, 1976
3934656 Automatic hydraulic hammer Jan. 27, 1976
3934655 Hydraulic post setting and wire dispensing apparatus Jan. 27, 1976











 
 
  Recently Added Patents
Systems and methods for adaptive error thresholds or adaptive modulation schemes based on atmospheric conditions
Method of hydrothermal liquid phase sintering of ceramic materials and products derived therefrom
Strategic planning management
Cell proliferation inhibitor
System and method for reducing the risks involved in trading multiple spread trading strategies
Grid computing accounting and statistics management system
Fast and compact circuit for bus inversion
  Randomly Featured Patents
Compact photographic objective of the triplet type having improved chromatic and monochromatic characteristics
Method of and assembly for fastening objects on a support material
Clock free two-dimensional barcode and method for printing and reading the same
Apparatus for management of SNMP/OSI gateways
Method of making sacrificial self-aligned interconnection structure
Vehicle mounting structure for fuel cell system
Door lock having multiple locking bolts
Gabion container
Bank note wrapper
System and method for processing a working file