Heat insulating jacket with snap-lock seam

Details Heat insulating jacket with snap-lock seam Heat insulating jacket with snap-lock seam

1988-04-21

1989-07-25

Bryant, III, James E.

Pipes and tubular conduits

Distinct layers

With intermediate insulation layer

138110, 138137, 138168, F16L 914

Patent

active

048503975

ABSTRACT:
An improved heat insulating jacket slit lengthwise thereof held closed by a unique pair of dissimilar separable snap-lock seam members formed of extruded plastic and designed for heat-fused assembly to the inner plastic layer of flexible laminated sheeting having an outer layer nonfusible to said seam members. Each seam member includes a narrow groove sized to snugly seat and conceal the adjacent lateral edge of the sheeting. Each seam member includes internesting snap-lock members positioned to interlock when laminated sheeting fused thereto is wrapped about ducting. A blanket of resilient heat insulating material is laminated to the inner plastic layer of the sheeting and aids in holding the seam members interlocked.

REFERENCES:
patent: 2937664 (1960-05-01), Plummer
patent: 2960561 (1960-11-01), Plummer
patent: 3233699 (1966-02-01), Plummer
patent: 3484907 (1969-12-01), Elsenheimer
patent: 3638286 (1972-02-01), Eichberg
patent: 3858282 (1975-01-01), Plummer
patent: 3925856 (1975-12-01), Plummer
patent: 4213487 (1980-07-01), Funk et al.

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