Sleeping bag

Details Sleeping bag Sleeping bag

1975-02-10

1976-11-02

Nunberg, Casmir A.

Beds

Bedsteads

Element or detail

A47G 900

Patent

active

039887910

ABSTRACT:
A sleeping bag having double shells, an inner shell and an outer shell both open at one and the same side, each preferably differentially cut so that the sleeping bag is narrow at the bottom or foot end than at the upper end, and having insulating material between said shells, said shells being closed along said open side by a pair of off-set slide fasteners, said off-sets providing effective closing off of any leakage through the fasteners of the warmed air inside the sleeping bag and the entry of cold air from the outside and providing both a dead air space between said double fasteners and insulated pads to cover the two closures.

REFERENCES:
patent: 983223 (1911-01-01), Fitch
patent: 1371841 (1921-03-01), Berkwits
patent: 2277492 (1942-03-01), Kamhi
patent: 2379416 (1945-07-01), Clark
patent: 3102570 (1963-09-01), Fairchilds
patent: 3584323 (1971-06-01), Worley
patent: 3787906 (1974-01-01), Hunt
patent: 3831206 (1974-08-01), Geary

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