Movable or removable closures – Closure seal; e.g. – striker gasket or weatherstrip – Inflatable or fluid pressure responsive
Patent
1987-02-03
1988-08-09
Aschenbrenner, Peter A.
Movable or removable closures
Closure seal; e.g., striker gasket or weatherstrip
Inflatable or fluid pressure responsive
49498, E06B 716
Patent
active
047619171
ABSTRACT:
An apparatus and method for sealing between a movable vehicular closure and body, especially adapted for an automobile, is disclosed. A deflatable sealing member forms a weatherstrip to seal the opening in the vehicle body and includes an operable tubular portion and an integral mounting portion. The sealing member is designed for resilient interference engagement between the closure and the body when expanded by the built-in resilient memory. The closure is mounted so as to provide relative transverse movement between the sealing member and one of said closure and said body during closing. In order to deflate the sealing member, a vacuum source, which may be a bellows pump, separate electric pump, engine vacuum, or the like, is connected to the single port of the sealing member and is activated at least during the closing of the closure. After closing, the control valves switch from the vacuum source to a vent to ambient pressure thereby inflating the sealing member. With the sealing member deflated, the closing effort of the closure is substantially reduced and compression shock inside the vehicle is eliminated. Two alternative embodiments featuring the alternative vacuum sources and valving arrangements are included. Also, a relatively non-deflatable bumper portion of the sealing member is disclosed to absorb shock during closing.
REFERENCES:
patent: 2003614 (1935-06-01), Shetzline
patent: 2104144 (1938-01-01), Zand
patent: 3040393 (1962-06-01), Dailey
patent: 3100918 (1963-08-01), Coverley
patent: 3110065 (1963-11-01), Dewis
patent: 3438150 (1969-05-01), Heim
Eilerman John F.
Knecht Allen F.
Smith Jack E.
Smith Stanley E.
Anderson Gerald A.
Aschenbrenner Peter A.
General Motors Corporation
Phillips R. L.
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