Conduit having waterproof layer of uniform thickness and method

Details Conduit having waterproof layer of uniform thickness and method Conduit having waterproof layer of uniform thickness and method

1983-07-25

1985-08-27

Marcus, Stephen

Pipes and tubular conduits

Distinct layers

Coated

427331, F16L 914

Patent

active

045372250

ABSTRACT:
A wrapped conduit and method of forming it are described in which a layer of hot applied cold flowable waterproofing material of nonuniform thickness is flowed onto a conduit, and over said layer is spirally wrapped under tension a sheet of a nonwoven permeable randomly arranged heat-resistant thermoplastic fibers. An outer or shielding wrap of asbestos felt, plastic film, kraft paper, or the like, is also employed. The product thus obtained has a waterproof layer of essentially uniform thickness which impregnates the sheet of aforesaid fibers.

REFERENCES:
patent: 2377608 (1945-06-01), Bronson
patent: 2742931 (1956-04-01), Ganahl
patent: 3024153 (1962-03-01), Kennedy
patent: 3205913 (1965-09-01), Ehlers
patent: 3498827 (1970-03-01), Vanderbilt et al.
patent: 3939874 (1976-02-01), Gray
patent: 4014370 (1977-03-01), McNulty
patent: 4192697 (1980-03-01), Parker et al.
patent: 4213486 (1980-07-01), Samour et al.
patent: 4289172 (1981-09-01), Ekstrom

Affiliated with

Also associated with

Rating

Conduit having waterproof layer of uniform thickness and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Conduit having waterproof layer of uniform thickness and method , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conduit having waterproof layer of uniform thickness and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1997816