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US 3,937,102 AGranted
Noise suppression
OwnerClayton H. Alleninventor
Life of this patent
Estimating the term…
Abstract
Noise generation by machines having cam driven reciprocating elements is reduced in a machine wherein the cam-follower linkage comprises a double walled cam slot, a follower roller within the slot and spring means for moving the follower from the trailing wall to the leading wall of the cam slot.
Claims10
In a cam and cam follower assembly employing a cam surface having opposing first and second walls that guide a reciprocating cam follower means having a leading portion, the improvement comprising,
- means for establishing one of said walls as a leading wall in contact with said leading portion for most of the path followed by said cam follower means during a traversal of said path and the other as a trailing wall normally free from contact with said leading portion for shifting the cam follower means leading portion from the then leading and next trailing wall to the then trailing and next leading wall prior to the reciprocating motion reversal.
Dependencies are inferred from the claim text.