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US 7,682,102 B1Granted
Asphalt tamper
OwnerGary Burke, Dale Burkeinventors
Life of this patent
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Abstract
The asphalt tamper includes a tamper plate connected to a reciprocating rod that oscillates inside of a protective sleeve, wherein the reciprocating rod abuts a cam that rotates about the output of a motor. The reciprocating rod has a shoulder that interacts with a spring that applies a biasing force ushering the reciprocating rod back and forth upon interaction with the rotating cam.
Claims4
A hand-held tamping device for use in tamping asphalt or stone comprising:
- a motor being connected to a rotating cam, said cam rotating in abutment with a reciprocating rod being spring-loaded via a spring acting upon a shoulder located on said reciprocating rod;
- wherein a sleeve extends along the reciprocating rod, and is made of a material comprising a metal, rubber, carbon fiber, or plastic;
- wherein the reciprocating rod has an overall length no less than 3 feet;
- wherein the shoulder of the reciprocating rod and spring are located in a sub-housing extending from below the housing;
- output of said motor is adjusted via a variable speed control that regulates the output speed of the motor;
- wherein the variable speed control is positioned on an exterior surface of the housing;
- said motor being powered by at least one rechargeable battery that is located within a housing, and wherein said rechargeable battery being recharged upon connection with a recharging cord;
- wherein handles protrude from the housing and provide a means for handling the tamping device by a single individual;
- wherein an on/off switch is positioned upon one of the handles and controls operation of the motor;
- wherein a bottom end of said reciprocating rod being connected with a tamper plate that upon reciprocation impacts ground being tamped.
7 more elements
A hand-held tamping device for use in tamping asphalt or stone comprising:
- a motor being connected to a rotating cam, said cam rotating in abutment with a reciprocating rod being spring-loaded via a spring acting upon a shoulder located on said reciprocating rod;
- wherein the reciprocating rod has an overall length no less than 3 feet;
- the spring and shoulder of the reciprocating rod are housed inside of a sub-housing that extends from below a housing;
- output of said motor is adjusted via a variable speed control that regulates the output speed of the motor;
- said motor being powered by at least one rechargeable battery that is located within the housing, and wherein said rechargeable battery being recharged upon connection with a recharging cord;
- wherein handles protrude from the housing and provide a means for handling the tamping device by a single individual;
- an on/off switch is positioned upon one of the handles and controls operation of the motor;
- wherein a bottom end of said reciprocating rod being connected with a tamper plate that upon reciprocation impacts ground being tamped;
- wherein the reciprocating rod and tamper plate are made of a metal;
- a sleeve extends down from the sub-housing along the reciprocating rod.
7 more elements
Dependencies are inferred from the claim text.