Implements or apparatus for applying pushing or pulling force – Metallic spring stretcher and/or compressor
Patent
1994-12-21
1996-04-16
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Metallic spring stretcher and/or compressor
29227, B23P 1904
Patent
active
055074707
ABSTRACT:
A spring compressor having a vertical post with a movable spring mount on the middle part of the post and a fixed spring mount on the upper part of the post. A self-contained, hydraulic jack is mounted between the movable spring mount and the lower part of the post or a base supporting the post. The jack is operable to move the the movable spring mount up toward the fixed spring mount to compress a spring between them. The fixed spring mount can be adjustably mounted on the upper part of the post. Each spring mount has a pair of support arms. There is a spring engaging hook at the end of each arm. The arms on each mount are movable toward or away from each other and are also swingable in a vertical plane so that they can be easily mounted on a spring. Adjustable stops are also provided for limiting upward movement of the arms on the fixed spring mount and for limiting downward movement of the arms on the movable spring mount.
REFERENCES:
patent: Re34097 (1992-10-01), Kloster
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patent: 3814382 (1974-06-01), Castoe
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patent: 4641814 (1987-02-01), Lala et al.
patent: 4736505 (1988-04-01), Vanbeber
patent: 5031294 (1991-07-01), Krueger
patent: 5172889 (1992-12-01), Post et al.
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