Sealing cover for a processing hole in aluminum sheet metal

Details Sealing cover for a processing hole in aluminum sheet metal Sealing cover for a processing hole in aluminum sheet metal

2005-05-03

2005-05-03

Ngo, Lien Tm (Department: 3727)

Receptacles

Closures

Removable closure retained by friction

C220S359400

Reexamination Certificate

active

06886712

ABSTRACT:
The present cover is used for permanent sealing of an oval-shaped processing hole (7) in aluminum sheet metal (8) by means of an adhesive joint. The cover consists of a circular cover plate (1) of aluminum with a concentric cover edge (2) and a ring-shaped strip (3) of hot-melt adhesive applied within the cover edge (2). The interior region of the cover plate (1) is connected to a spring plate (5) aligned plane-parallel with the cover plate at a spacing of the thickness of the aluminum sheet metal (8). The outer edge (6) of the spring plate (5) has a contour that corresponds to the shape of the oval processing hole (7) and includes quarter-circular spring tongues (11) which are brought to a tight fit by spring force against the back side of the aluminum sheet metal (8) by a quarter turn of the cover plate to produce the necessary pressure on the adhesive strip (3).

REFERENCES:
patent: 3851794 (1974-12-01), Hehl
patent: 3990604 (1976-11-01), Barnett et al.
patent: 4094436 (1978-06-01), Birmingham
patent: 4290536 (1981-09-01), Morel
patent: 4363420 (1982-12-01), Andrews
patent: 4494671 (1985-01-01), Moore et al.
patent: 4560083 (1985-12-01), Danico
patent: 4588105 (1986-05-01), Schmitz et al.
patent: 5267667 (1993-12-01), Cozzani
patent: 5505324 (1996-04-01), Danico
patent: 5513769 (1996-05-01), de Baets

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