Lubricated fin pile-type weatherstrip

Details Lubricated fin pile-type weatherstrip Lubricated fin pile-type weatherstrip

1985-05-07

1985-11-05

McCamish, Marion E.

Stock material or miscellaneous articles

Pile or nap type surface or component

428 88, 428 89, 428 90, 428 92, 428 93, 428 94, 428 96, D04H 1100, E06B 722

Patent

active

045513767

ABSTRACT:
An improved pile-type, fin weatherstrip includes an elongated V- or U-shaped barrier fin bonded to a base strip and located between a pair of upstanding pile fiber arrays. The barrier fin is formed of thermoplastic film which is preferably smooth, but which may be roughened, dimpled or otherwise provided with a large number of pockets, or which may have a flocked surface. A lubricant grease is provided in the channel shaped cavity of the barrier fin, which lubricant is progressively dispensed in response to a wiping action type of movement which occurs when the barrier fin is compressed by the pile arrays during usage. The lubricant grease is exuded progressively over the useful life of the weatherstrip toward the free edges of the barrier fin located at or near the forward projecting face of the weatherstrip where such grease is dispensed in small amounts to decrease breakaway force, lower sliding friction and improved air infiltration characteristics. The barrier fin may be perforated so that lubricant grease is also forced into the fibers of the pile arrays where it will also work to the surface of the weatherstrip and improve the aforementioned properties.

REFERENCES:
patent: 3175256 (1965-03-01), Horton
patent: 3745053 (1973-07-01), Johnson
patent: 4242392 (1980-12-01), Yackiw

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