US3815214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for connecting pipe to a manhole
Assignee: Individual
•
Filing: 1972-05-22
•
Granted: 1974-06-11
•
Expires: 1992-05-22
Abstract
Abstract A manhole is provided with a precast opening of precise dimensions and has a resilient O-ring gasket cast in situ medially thereof. A sewer pipe is fitted with a connector section on the end thereof, said section having a smooth cylindrical exterior of substantially uniform diameter. The connector section is receivable in the manhole connector opening, and the arrangement and method allow latitude to the location of the manhole while providing a flexible but tightly sealed joint.
Inventors
- 👤 J Kyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:16
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/02; E03F5/021; B; B28; B28B; B28B23/00; B28B23/0043; B28B7/00; B28B7/16; B28B7/168; F; F16; F16L; F16L41/00; F16L41/002; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
165 words
A method for connecting the end of a pipe section of a pipeline with a manhole, having a wall defining a manhole chamber, comprising the steps of: forming a pipe opening through said wall of said manhole communicating with said chamber, said pipe opening being bounded by a wall surface and said wall surface having a resilient sealing ring seated and retained thereon with said ring projecting radially inwardly into said pipe opening; joining a first end of said pipe section with a connector pipe section, said connector pipe section having an outer diameter greater than the inner diameter of said sealing ring and smaller than the diameter of said opening; inserting the free end of said connector pipe section through said pipe opening beyond said sealing ring, said connector pipe section compressing said sealing ring radially; and manipulating said connector pipe section and pipe section to bring the opposite end of said pipe section into engagement with the next pipe section of said pipeline.
Claim 2
Independent Claim
165 words
A method for connecting the end of a pipe section of a pipeline with a manhole, having a wall defining a manhole chamber, comprising the steps of: forming a pipe opening through said wall of said manhole communicating with said chamber, said pipe opening being bounded by a wall surface and said wall surface having a resilient sealing ring seated and retained thereon with said ring projecting radially inwardly into said pipe opening; joining a first end of said pipe section with a connector pipe section, said connector pipe section having an outer diameter greater than the inner diameter of said sealing ring and smaller than the diameter of said opening; inserting the free end of said connector pipe section through said pipe opening beyond said sealing ring, said connector pipe section compressing said sealing ring radially; and manipulating said connector pipe section and pipe section to bring the opposite end of said pipe section into engagement with the next pipe section of said pipeline.
Claim 3
Dependent Claim
15 words
The method as recited in claim 1, wherein said sealing ring is a circular O-ring.
Claim 4
Dependent Claim
25 words
The method as recited in claim 1, wherein said pipe opening is formed with a double flare to allow angular displacement of said connector section.
Claim 5
Dependent Claim
21 words
A method as recited in claim 1, wherein said connector pipe section has a smooth exterior surface of substantially uniform diameter.
Claim 6
Dependent Claim
19 words
A method as recited in claim 1, whereiN said resilient sealing ring is seated centrally of said wall surface.
Claim 7
Dependent Claim
31 words
A method as recited in claim 3, wherein said sealing ring is seated at the apex of said double flare at the axial position of said opening with the smallest diameter.
Claim 8
Dependent Claim
22 words
A method as recited in claim 1, wherein said wall surface is formed with a groove for retaining said resilient sealing ring.
Claim 9
Dependent Claim
20 words
A method as recited in claim 1, wherein said resilient sealing ring is cast in situ on said wall surface.
References Cited (Backward Citations)
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Cited
US2683298A
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US2955322A
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US3363876A
Cited
US3415482A
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US3759280A
Cited
US3788080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |