Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
A pipe seal comprising a tubular member and a joint of two axially aligned pipes, said pipes having corresponding recesses in their adjacent ends and means for closing the joint, said tubular member having beveled ends and being inserted in said recesses with the said beveled ends of the tubular member engaging end walls of the recesses, the length of said tubular member being greater than the combined lengths of said recesses, whereby the member is subjected to compressional stress on closure of the joint, said member having end portions delineated by marginal outer radially extending annular grooves to provide relatively resilient nose sections at said end portions under the compressional stress, said recesses including shoulder means in substantial alignment with said annular grooves, whereby said nose sections are bent about said shoulders due to said compressional stress to preclude aXial movement of said pipes.
Claim 2
Dependent Claim
145 words
A pipe seal comprising a tubular member and a joint of two axially aligned pipes, said pipes having corresponding recesses in their adjacent ends and means for closing the joint, said tubular member having beveled ends and being inserted in said recesses with the said beveled ends of the tubular member engaging end walls of the recesses, the length of said tubular member being greater than the combined lengths of said recesses, whereby the member is subjected to compressional stress on closure of the joint, said member having end portions delineated by marginal outer radially extending annular grooves to provide relatively resilient nose sections at said end portions under the compressional stress, said recesses including shoulder means in substantial alignment with said annular grooves, whereby said nose sections are bent about said shoulders due to said compressional stress to preclude aXial movement of said pipes.
Claim 3
Dependent Claim
54 words
A pipe seal as defined in claim 1 wherein said beveled ends of said tubular member are sloped at such an angle that under compressional stress the ends of said recesses press against said beveled ends and cam said nose sections outwardly about said shoulder means in conformity with the shape of said recesses.
Claim 4
Dependent Claim
29 words
A pipe seal as defined in claim 2 wherein the ends of said recesses are sloped at substantially the same angle as the beveled ends of said tubular members.
Claim 5
Dependent Claim
27 words
A seal as defined by claim 1 in which the inside diameter of the tubular member is substantially the same as the inside diameter of the pipes.
Claim 6
Dependent Claim
28 words
A pipe seal as defined in claim 1 wherein said means for closing the joint comprises threaded studs passing through apertures in external flanges on the respective pipes.
Claim 7
Dependent Claim
38 words
A pipe seal as defined in claim 1 wherein said recesses include outwardly sloping annular pockets in the regions between said annular grooves and the ends of said recesses, one end of said pockets defining said shoulder means.
Claim 8
Dependent Claim
49 words
A pipe joint as defined by claim 1 and a stabilizing collar integral with the central section of the member, said collar extending radially outward, the thickness of the collar being less than the difference between the length of the tubular member and the combined lengths of the recesses.
Claim 9
Dependent Claim
30 words
A seal as defined by claim 7 in which the stabilizing collar extends outwardly a distance less than the studs and shim means between the pipe flanges adjacent said studs.
Claim 10
Dependent Claim
24 words
A seal as defined by claim 7 in which the collar extends outwardly beyond the studs, said collar having apertures aligned with the studs.