Connecting device for insulated duct work

Details Connecting device for insulated duct work Connecting device for insulated duct work

1979-05-09

1981-07-28

Bryant, III, James E.

Pipes and tubular conduits

Distinct layers

With intermediate insulation layer

138147, 138151, 138159, 138167, F16L 5902

Patent

active

042805368

ABSTRACT:
A connector is used to join sheets of fibrous insulation into a duct. The connector includes a base plate to which a plurality of guide flanges and penetrating flanges are connected. The penetrating flanges are spaced from and parallel to the guide flanges, and both the penetrating and guide flanges project from the base plate. In use, the guide flanges bear against the outer surface of the insulating sheet while the knife-like edges of the penetrating flanges penetrate and mesh with the longitudinal fibers of the insulation.

REFERENCES:
patent: 795839 (1905-08-01), Kelsey
patent: 975692 (1910-11-01), Jeffers
patent: 2134919 (1938-11-01), Horster
patent: 2489048 (1949-11-01), Rinehart
patent: 3095014 (1963-06-01), Dosker
patent: 3331305 (1967-07-01), Oneson
patent: 3416275 (1968-12-01), Loghem et al.
patent: 3687168 (1972-08-01), Sherman et al.
patent: 3974616 (1976-08-01), Beckley
patent: 4126978 (1978-11-01), Heller
patent: 4128983 (1978-12-01), Matsubara

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