Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
A method of forming a seal with a circular hole in a wall comprising the steps of (a) inserting a substantially rigid ring into the end portion of an elastomeric resilient elongated sleeve thereby determining the outer diameter of said sleeve radially opposite said ring, the outer diameter of said sleeve with said ring inserted being larger than the diameter of said hole, (b) force fitting said assembled ring and sleeve edgewise into said hole in a direction substantially parallel to the axis thereof with said assembled ring and sleeve lying in a plane also substantially parallel to said axis, and (c) forcefully rotating the thus force fitted assembly into a position in which it is substantially coaxial with said hole and with said sleeve being compressed between the wall of said hole and said ring thereby providing a seal.
Claim 2
Independent Claim
140 words
A method of forming a seal with a circular hole in a wall comprising the steps of (a) inserting a substantially rigid ring into the end portion of an elastomeric resilient elongated sleeve thereby determining the outer diameter of said sleeve radially opposite said ring, the outer diameter of said sleeve with said ring inserted being larger than the diameter of said hole, (b) force fitting said assembled ring and sleeve edgewise into said hole in a direction substantially parallel to the axis thereof with said assembled ring and sleeve lying in a plane also substantially parallel to said axis, and (c) forcefully rotating the thus force fitted assembly into a position in which it is substantially coaxial with said hole and with said sleeve being compressed between the wall of said hole and said ring thereby providing a seal.
Claim 3
Dependent Claim
31 words
The method of claim 1 including the step of sealing the other end portion of said sleeve to the end portion of a pipe positioned to extend away from said hole.
Claim 4
Dependent Claim
49 words
The method of claim 2 wherein said sleeve is flexible between the ends thereof and said pipe is of a diameter smaller than said hole, said pipe end portion being received by said sleeve, and clamping said other portion of said sleeve to the outer surface of said pipe.
Claim 5
Dependent Claim
57 words
The method of claim 3 wherein the first-mentioned end portion of said sleeve is in the form of a reflexly curved flange, said ring being inserted inside the outer portion of said flange in radially spaced relation from the opposite portion of said sleeve, said outer portion of said flange having an interference fit with said hole.
Claim 6
Dependent Claim
40 words
The method of claim 4 wherein said sleeve has a tubular portion extending beyond said flange, said ring and sleeve assembly being inserted into said hole such that said tubular portion extends exteriorly of said hole in coaxial relation therewith.
Claim 7
Dependent Claim
16 words
The method of claim 5 including forming said hole in the wall of a manhole riser.
Claim 8
Independent Claim
91 words
A method of forming a seal with a circular hole in a wall comprising the steps of (a) inserting a substantially rigid ring into the end portion of an elastomeric resilient elongated sleeve thereby determining the outer diameter of said sleeve radially opposite said ring, the outer diameter of said sleeve with said ring inserted being larger than the diameter of said hole, (b) arranging said assembled ring and sleeve in coaxial alignment with said hole, and (c) force fitting said assembly by moving it axially and coaxially into said hole.
Claim 9
Independent Claim
91 words
A method of forming a seal with a circular hole in a wall comprising the steps of (a) inserting a substantially rigid ring into the end portion of an elastomeric resilient elongated sleeve thereby determining the outer diameter of said sleeve radially opposite said ring, the outer diameter of said sleeve with said ring inserted being larger than the diameter of said hole, (b) arranging said assembled ring and sleeve in coaxial alignment with said hole, and (c) force fitting said assembly by moving it axially and coaxially into said hole.
Claim 10
Dependent Claim
57 words
The method of claim 7 wherein the first-mentioned end portion of said sleeve is in the form of a reflexly curved flange, said ring being inserted inside the outer portion of said flange in radially spaced relation from the opposite portion of said sleeve, said outer portion of said flange having an interference fit with said hole.