Motor vehicle seal assembly and method of manufacture
First Claim
1. A method for making a tripartrite seal comprising:
- providing a die having first, second and third regions for forming, respectively, a bulb seal, a rigid base and a connection there between;
providing first, second and third plastic materials;
and coextruding the first, second and third plastic materials, respectively through said first, second and third regions for forming a three-piece integral seal assembly.
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Abstract
A motor vehicle has a first body part with a seal support flange thereon that supports a unitary seal construction having a flexible bulb seal portion engageable with second vehicle body part including a hood or other vehicle body part for sealing against leakage between the first and second vehicle body parts and an integrally formed base portion and wherein the flexible bulb seal is hollow and is formed of a soft low density thermoplastic foam and the integrally formed base portion is integrally extruded with the flexible bulb seal and is formed solely from polymeric material having spaced walls defining a recess for fitting the unitary seal construction in place on the support flange.
32 Citations
13 Claims
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1. A method for making a tripartrite seal comprising:
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providing a die having first, second and third regions for forming, respectively, a bulb seal, a rigid base and a connection there between;
providing first, second and third plastic materials;
and coextruding the first, second and third plastic materials, respectively through said first, second and third regions for forming a three-piece integral seal assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification