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US 4,976,280 AGranted
Valve spring compression tool
OwnerRobert Laganainventor
Life of this patent
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Abstract
A valve spring compression tool is provided and consists of a C-shaped frame having at a first extremity a fixed pad with a central aperture therethrough. A structure at a second extremity of the C-shaped frame is for moving a movable pad toward and away from the fixed pad in an axial alignment. When a valve head of a valve bears against the fixed pad a valve spring can be compressed to release a pair of retaining members from a valve stem through the central aperture so that the valve can then be disassembled.
Claims4
A valve spring compression tool comprising:
- (a) a C-shaped frame having at a first extremity, a fixed, circular pad with a central aperture therethrough defining a ring-form surface for bearing against a valve washer;
- (b) a movable pad having a circular surface that bears against the valve head;
- and,
- (c) means at a second extremity of said C-shaped frame, for moving said movable pad toward and away from said fixed pad in an axial alignment so that when a valve head of a valve bears against said movable pad and a valve washer bears against said fixed pad a valve spring can be compressed to release a pair of retaining members from a valve stem through said central aperture so that the valve can then be disassembled from an engine block, the ring-form bearing surface of the fixed pad and the circular bearing surface of the movable pad each having an encircling chamfer so that the tool can be precisely aligned with valves of different sizes concentrically with the fixed and movable pads when compressing the valve spring.
1 more element
Dependencies are inferred from the claim text.