Sound deadener for window counterbalance spring
First Claim
Patent Images
1. A sound deadened window counterbalance spring comprising:
- a. a spring cover arranged around said window counterbalance spring;
b. a thermoplastic hot melt adhesive adhered to an outward facing surface of said window counter-balance spring;
c. said thermoplastic hot melt adhesive covering a covered portion of said outward facing surface of said window counterbalance spring, and leaving uncovered a bare portion of said outward facing surface of said window counter-balance spring; and
d. said thermoplastic hot melt adhesive on said outward facing surface of said window counter-balance spring being interposed between said spring cover and said outward facing surface of said window counterbalance spring to deaden any rattle sound resulting from contact between said outward facing surface of said window counterbalance spring and an inward facing surface of said spring cover.
1 Assignment
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Accused Products
Abstract
A window counterbalance spring (10, 30) enclosed within a spring cover (35) or tube (25) is sound deadened against rattling by having its outer surface (16) coated with a hot melt adhesive (11). Hot melt (11) is preferably sprayed on outer surface (16) of the spring, at it is wound; and for rotationally tensioned springs (10) surrounding twisted rods (20), some hot melt is deposited on the interior (17) of the spring to cushion its vibration against the twisted rod.
23 Citations
17 Claims
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1. A sound deadened window counterbalance spring comprising:
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a. a spring cover arranged around said window counterbalance spring; b. a thermoplastic hot melt adhesive adhered to an outward facing surface of said window counter-balance spring; c. said thermoplastic hot melt adhesive covering a covered portion of said outward facing surface of said window counterbalance spring, and leaving uncovered a bare portion of said outward facing surface of said window counter-balance spring; and d. said thermoplastic hot melt adhesive on said outward facing surface of said window counter-balance spring being interposed between said spring cover and said outward facing surface of said window counterbalance spring to deaden any rattle sound resulting from contact between said outward facing surface of said window counterbalance spring and an inward facing surface of said spring cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A sound deadener applied to a window counterbalance spring, said sound deadener comprising:
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a. a thermoplastic hot melt adhesive adhered to an outward facing surface of said window counterbalance spring so that said thermplastic hot melt adhesive covers only a portion of said outward facing surface of said window counterbalance spring; b. a spring cover arranged around said outer surface of said window counterbalance spring; and c. said thermoplastic hot melt adhesive being interposed between said outward facing surface of said window counterbalance spring and an inward facing surface of said spring cover so that said thermoplastic hot melt adhesive deadens any rattle sound resulting from contact between said outward facing surface of said window counterbalance spring and said inward facing surface of said spring cover. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification