Arrangement in a pipe for enclosing insulation

Claim 2

Means for enclosing an insulation around a pipe compriSing a. a jacket spaced from said pipe in a substantially concentric manner to define an annular space around said pipe, said jacket being divided along a plurality of longitudinally extending lines at spaced circumferential positions thereabout so as to form a plurality of jacket portions, the edges along the line of division of each pair of adjacent jacket portions maintained in overlapping and resilient abutting relationship with each other, the overlapping relationship maintained by the resiliency of the abutting jacket portions; b. a plurality of longitudinally extending flanges, one for each jacket portion, each flange having an outer edge connected to the inner surface of the cooperating jacket portion between the edges thereof and extending in a substantially radial direction therefrom, each flange furthermore having an inner edge connected to the outer surface of said pipe, said flanges dividing the annular space into a plurality of longitudinally extending compartments, one between each pair of adjacent flanges; c. said overlapping edges of each pair of adjacent jacket portions being resiliently separable by the pressure exerted by a means inserted therebetween for introducing insulation into said compartments.

Claim 3

Means as recited inclaim 1 wherein the inner edges of said flanges are integral with said pipe.

Claim 4

Means as recited in claim 1 wherein the inner edges of said flanges are detachably connected to said pipe.

Claim 5

Means as recited in claim 3 wherein said pipe includes a number of longitudinally extending and circumferentially spaced fins protruding therefrom in a substantially radial direction with cooperative means on the inner edge of each of said flanges and said fins for forming a snap-lock engagement between said fins and said flanges.

Claim 6

Means as recited in claim 1 wherein the edges of said jacket along each of said lines of division overlap each other with one of said edges being offset and the other edge overlapping said offset edge.

Claim 7

Means for enclosing an insulation around a pipe comprising a. a jacket spaced from said pipe in a substantially concentric manner to define an annular space around said pipe, said jacket being divided along a plurality of longitudinally extending lines at spaced circumferential positions thereabout so as to form a plurality of jacket portions, the edges along the line of division of each pair of adjacent jacket portions maintained in overlapping and resilient abutting relationship with each other, the overlapping relationship maintained by the resiliency of the abutting jacket portions; b. a plurality of longitudinally extending flanges, one for each jacket portion, each flange having an outer edge connected to the inner surface of the cooperating jacket portion between the edges thereof and extending in a substantially radial direction therefrom, each flange furthermore having an inner edge connected to the outer surface of said pipe, said flanges dividing the annular space into a plurality of longitudinally extending compartments, one between each pair of adjacent flanges; c. cooperative means on the edges of said jacket portion along each of said division lines for engageably coupling said edges together, said cooperative means having two members, one of said members being forked, d. said overlapping edges of each pair of adjacent jacket portions being resiliently separable by the pressure exerted by a means inserted therebetween for introducing insulation into said compartments.

Claim 8

Means for enclosing an insulation around a pipe comprising a. a jacket spaced from said pipe in a substantially concentric manner to define an annular space around said pipe, said jacket being divided along a plurality of longitudinally extending lines at spaced circumferential positions thereabout so as to form a plurality of jacket portions, the edges along the line of division of each pair of adjacent jacket portions maintained in overlapping and resilient abutting relationship with each other, the overlapping relationship maintained by the resiliency of the abutting jacket portions; b. a plurality of longitudinally extending flanges, one for each jacket portion, each flange having an outer edge connected to the inner surface of the cooperating jacket portion between the edges thereof and extending in a substantially radial direction therefrom, each flange furthermore having an inner edge connected to the outer surface of said pipe, said flanges dividing the annular space into a plurality of longitudinally extending compartments, one between each pair of adjacent flanges; c. cooperative means on the edges of said jacket portion along each of said division lines for engageably coupling said edges together, said cooperative means having two members, one of said members being forked, d. said overlapping edges of each pair of adjacent jacket portions being resiliently separable by the pressure exerted by a means inserted therebetween for introducing insulation into said compartments.

Claim 9

Means as recited in claim 6 wherein one of the edges along said lines of division is foreed shaped in cross-section, having a pair of spaced tines, and the opposite edge along said line of division is engageably received between said tines.

Claim 10

Means as recited in claim 7 wherein the inner surface of at least one of said times is serrated with teeth and the surface of the

Claim 11

Means as recited in claim 6 wherein said cooperative means is comprised of one of said edges being fork shapeD in cross-sectional configuration defining opposed-spaced tines and wherein the opposed jacket edge is square cut and received between said tines in resilient engagement to couple said edges together.

Claim 12

Means as recited in claim 9 wherein at least one of said tines is serrated on its inner surface to provide teeth and wherein a surface of said opposite edge is correspondingly serrated to provide locking engagement therebetween.