Jack for truck tractor

Details Jack for truck tractor Jack for truck tractor

1998-03-17

1999-11-30

Scherbel, David A.

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Platform type

254 8B, B60P 100

Patent

active

059928247

ABSTRACT:
A jack for raising automotive equipment, particularly heavy equipment such as truck tractors and trailers. The jack includes a heavy duty ram on an extended base. The base is mobile, but includes at least one vertically movable wheel. The movable wheel is engaged to retract into the base to provide a stable, non-moving platform. The top of the ram is provided with a readily removable extended platform which is shaped to be extendible between the frame of the automotive equipment and any springs, particularly leaf springs on the equipment. Convenient safety arrangements to prevent the jack from dropping are provided to provide positive mechanical engagement between the jack and its base.

REFERENCES:
patent: 2926888 (1960-03-01), Schultz
patent: 2947513 (1960-08-01), Nolden
patent: 3047269 (1962-07-01), Renshaw
patent: 3130956 (1964-04-01), Mandelko

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