Insulation for pipe fitting

Claim 2

An insulating pipe fitting covering comprising: a body of insulation material having a cavity sized to fit around a pipe fitting of predetermined size, said body having a stepped opening communicating the exterior surface of said body with said cavity, said stepped opening being of progressively smaller cross section proceeding outwardly from said cavity and being formed by cylindrically shaped step surfaces sized to snugly receive conduits of differing standard sizes, whereby an end portion of the body of insulation material can be removed at one of said steps to adapt the body for use on the diameter conduit for which said step is sized.

Claim 3

The pipe covering of claim 1 formed by two mirror image sections.

Claim 4

The pipe covering of claim 1 wherein said opening has an oblong cross section.

Claim 5

The pipe covering of claim 1 having three stepped openings with the axis of the center opening being spaced 90* from the axis of each of the other openings, and each of which stepped openings are of progressively smaller cross section proceeding outwardly from said cavity.

Claim 6

The pipe covering of claim 1 wherein said openings are a nominal 90* apart.

Claim 7

The pipe covering of claim 1 wherein said body comprises fibers bonded together by a hydrous calcium silicate binder.

Claim 8

The pipe covering of claim 1 wherein the longitudinal centerlines of the openings form an angle of approximately 135* with each other.

Claim 9

The pipe covering of claim 1 wherein said body comprises an organic foam.

Claim 10

The pipe covering of claim 1 wherein said body comprises an inorganic foam.

Claim 11

The pipe covering of claim 1 wherein said body comprises inorganic fibers bonded together by a thermoset resin.

Claim 12

The pipe covering of claim 10 wherein said body is impregnated with an inorganic binder forming material.

Claim 13

The pipe covering of claim 10 wherein said fibers are glass fibers.

Claim 14

The pipe covering of claim 10 wherein said fibers are mineral wool.

Claim 15

The pipe covering of claim 10 wherein said fibers are aluminum silicate fibers.

Claim 16

The pipe covering of claim 1 wherein said openings are eccentrically located relative to said cavity.

Claim 17

The pipe covering of claim 1 wherein the said body comprises a light weight aggregate and inorganic fibers bonded together by a binder.

Claim 18

The pipe covering of claim 1 wherein indicia are provided on the outside of the insulation generally overlying the shoulders between stepped bearing surfaces.

Claim 19

An insulating pipe fitting covering comprising: a body of insulation material having a cavity sized to fit around a pipe fitting of predetermined size, said body having two stepped openings communicating the exterior surface of said body with said cavity, said stepped openings being of progressively smaller cross section proceeding outwardly from said cavity and being formed by cylindrically shaped step surfaces sized to snugly receive conduits of differing standard sizeS, whereby an end portion of the body of insulation material surrounding one opening can be removed at one size step to accommodate one size pipe, and another end portion of the body of insulation material surrounding the other opening can be removed at a corresponding or a differing size step to accommodate the same or a different size pipe to adapt the body for use on standard or reducing pipe fittings.

Claim 20

An insulating pipe fitting covering comprising: a body of insulation material having a cavity sized to fit around a pipe fitting of predetermined size, said body having two stepped openings communicating the exterior surface of said body with said cavity, said stepped openings being of progressively smaller cross section proceeding outwardly from said cavity and being formed by cylindrically shaped step surfaces sized to snugly receive conduits of differing standard sizeS, whereby an end portion of the body of insulation material surrounding one opening can be removed at one size step to accommodate one size pipe, and another end portion of the body of insulation material surrounding the other opening can be removed at a corresponding or a differing size step to accommodate the same or a different size pipe to adapt the body for use on standard or reducing pipe fittings.

Claim 21

An insulating pipe fitting cover comprising: a pair of insulation sections each having a mating surface for abutment with the other section and side surfaces generally normal thereto, each of said mating surfaces having a fitting receiving recess having two pipe receiving side outlets communicating with spaced side surfaces of the section and with the side outlets of at least one of said sections having cylindrically shaped step surfaces sized to snugly receive conduits of differing standard sizes and with the stepped surfaces being arranged in a manner becoming progressively more shallow proceeding in the direction of the side surface to which the recess communicates, and whereby corresponding portions of each section can be removed at one of said steps to adapt the sections for use as a fitting covering for conduits of a size corresponding to the size of the step at which the insulation material was removed.

Claim 22

An insulating pipe fitting cover comprising: a pair of insulation sections each having a mating surface for abutment with the other section and side surfaces generally normal thereto, each of said mating surfaces having a fitting receiving recess having two pipe receiving side outlets communicating with spaced side surfaces of the section and with the side outlets of at least one of said sections having cylindrically shaped step surfaces sized to snugly receive conduits of differing standard sizes and with the stepped surfaces being arranged in a manner becoming progressively more shallow proceeding in the direction of the side surface to which the recess communicates, and whereby corresponding portions of each section can be removed at one of said steps to adapt the sections for use as a fitting covering for conduits of a size corresponding to the size of the step at which the insulation material was removed.