Method for manufacturing an improved elastomeric strip

Details Method for manufacturing an improved elastomeric strip Method for manufacturing an improved elastomeric strip

1991-01-28

1992-09-01

Epstein, Henry F.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

49506, 2641772, 428122, 428358, E06B 716

Patent

active

051436663

ABSTRACT:
An elastomeric strip of substantially U-shaped cross-section is disclosed which is adapted to be mounted on a flange having longitudinally-spaced curved sections. The elastomeric strip includes a support frame having longitudinally displaceable frame portions that are reinforced with longitudinally extending degradable reinforcing material. The reinforced support frame is advanced through an extrusion die where a coating of an elastomeric material is extruded on the support frame to form an elastomeric strip without degrading the degradable material. Longitudinally-spaced regions of the degradable reinforcing material corresponding to the longitudinally-spaced curved sections of the flange are then degraded, allowing the elastomeric strip to more faithfully follow the curved sections of the flange when the strip is mounted thereon.

REFERENCES:
patent: 3091821 (1963-06-01), Cook, Jr.
patent: 3198689 (1965-08-01), Lansing
patent: 4343845 (1982-08-01), Burden et al.
patent: 4413033 (1983-11-01), Weichman
patent: 4517233 (1985-05-01), Weichman
patent: 4624093 (1986-11-01), Gibson
patent: 5009947 (1991-04-01), McManus et al.

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