Dual spring exhaust valve linkage assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 30, 2002
Grant Date -
Oct 25, 2001
app pub date -
Feb 2, 2001
filing date -
Feb 3, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A linkage assembly including a crank arm, first and second elongated links, and first and second springs. Ends of the links are adjacent one another and overlap. The first spring is held within this overlapping portion. The second spring is held about an unoverlapped portion of the second link. In a neutral position, the first and second links are balanced in force. In an open position, the first and second links are moved away from one another, causing the second link to be less compressed than the first link. In a back pressure position, the first and second links are moved toward one another, causing the first link to be less compressed than the second link. The first and second springs are held such that they are balanced in the neutral position and provide a restorative force in the open and back pressure positions.
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Family
International Classification(s)
Cited Art Landscape
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