Low friction weather seal

Details Low friction weather seal Low friction weather seal

1983-11-16

1985-09-03

Kannan, Philip C.

Movable or removable closures

Closure seal; e.g., striker gasket or weatherstrip

49490, 49489, 49497, E06B 716

Patent

active

045383804

ABSTRACT:
An extruded, low friction weather seal is disclosed which in transverse cross section consists of a semirigid base member of polypropylene, a tubular sealing member of thermoplastic elastomer, and a thin film of polypropylene or a blend of polypropylene and thermoplastic elastomer capping all or part of the tubular sealing member. The thermoplastic elastomer enables the tubular sealing member to be resilient and compliant over a wide range of temperatures, including extremely cold conditions, but has a high friction surface which is subject to wear particularly where there is relative sliding movement between the weather seal and surface to be sealed. The polypropylene thin film cap provides a low friction contact surface without adversely affecting the resilience and compliance of the tubular sealing member.

REFERENCES:
patent: 3385001 (1968-05-01), Bordner
patent: 3448543 (1969-06-01), Multer
patent: 3535824 (1970-10-01), Kessler
patent: 3685206 (1972-08-01), Kessler
patent: 3918206 (1975-11-01), Dochnahl
patent: 4075851 (1978-02-01), Gardner
patent: 4305984 (1981-12-01), Boyce
patent: 4358497 (1982-11-01), Miska
Applicant Exhibits A and B submitted Feb. 6, 1984.

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