Movable or removable closures – Panel with closure feature
Patent
1976-11-15
1979-04-10
Kannan, Philip C.
Movable or removable closures
Panel with closure feature
49503, 52827, E06B 300
Patent
active
041481577
ABSTRACT:
The invention concerns a new type of metal clad door. The metal clad door according to the invention is built from a unique internal metal frame with two external panels of galvanized sheet metal on either side of the frame. A sheet of insulating material such as polyurethane foam fills the space defined by the internal frame and the two external panels. The external panels are surrounded by a wooden edging which is mounted to the internal frame. The wooden edging surrounding the metal clad door provides easy fitting and adjustment since modifications which are to be made to the external dimensions are carried out very quickly by planing the wooden edging. Further, the door, according to this invention, gives a sound insulation much superior to the traditional doors with either wooden or metal external panels.
REFERENCES:
patent: 849742 (1907-04-01), Mandry
patent: 990151 (1911-04-01), Mayo
patent: 1091905 (1914-03-01), Zahner
patent: 2924861 (1960-02-01), Viets
patent: 3186528 (1965-06-01), Bohnsack
patent: 3263370 (1966-08-01), Martinez
patent: 3334464 (1967-08-01), Charles
patent: 3599703 (1971-08-01), Mennoto et al.
patent: 3987588 (1976-10-01), Imperial
Kannan Philip C.
VanOphem Remy J.
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