Patent US4038737A successfully refreshed from Google Patents.
US4038737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of replacing plumbing
Assignee: Individual
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Filing: 1975-09-05
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Granted: 1977-08-02
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Expires: 1995-09-05
Abstract
Abstract A method and apparatus for installing or replacing pipe which extends between a toilet and a ferrule structure projecting from a soil stack (or other points in a sewage system) does not require replacing the caulked oakum and lead (Pb) joint which seals the ferrule structure to the soil stack. The method couples a discharge pipe to the ferrule structure with a compressible sleeve which extends over facing ends of the discharge pipe and ferrule. Ring clamps compress and seal the sleeve to the discharge pipe and ferrule structure. Ears project from a flange attached to one end of the discharge pipe at a floor which supports the toilet for supporting the discharge pipe from the floor. A nipple may be inserted into the discharge pipe for attaching another pipe intermediate ends of the discharge pipe. A shield extends about the nipple and conforms to the outside of the discharge pipe to aid in adhesively sealing the nipple to the discharge pipe.
Inventors
- 👤 John Bretone, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:44
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/13; E03D11/135; E03D11/16; F; F16; F16L; F16L21/00; F16L21/002; F16L21/005; F16L41/00; F16L41/08; F16L41/086; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/4943; Y10T29/49718; Y10T29/49721; Y10T29/4973; Y10T29/49732; Y10T29/49739; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49947; Y10T29/49948; Y10T29/49952; Y10T29/49954; Y10T29/49959; Y10T29/49961
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
190 words
A method of replacing a discharge pipe which extends from a toilet to a ferrule structure projecting from a section of a sewage system, the method comprising: obtaining access to the space for the discharge pipe at the ferrule structure by removing the toilet and a portion of a floor therebeneath; forming the ferrule structure with a bead about the end which projects from the section of the sewage system by separating the discharge pipe to be replaced from the ferrule structure at a wiped solder joint between the ferrule structure and the discharge pipe, leaving the bead formed by the solder on the ferrule structure; positioning a new discharge pipe with one end adjacent the ferrule structure and the other end positioned for connection to the toilet; attaching a flange to the other end of the discharge pipe for connecting and sealing the discharge pipe to the toilet; placing a compressible sleeve over the adjacent ends of the discharge pipe and ferrule structure; and compressing portions of the sleeve about the discharge pipe and ferrule structure with clamps for sealing the sleeve to the discharge pipe and ferrule structure.
Claim 2
Independent Claim
190 words
A method of replacing a discharge pipe which extends from a toilet to a ferrule structure projecting from a section of a sewage system, the method comprising: obtaining access to the space for the discharge pipe at the ferrule structure by removing the toilet and a portion of a floor therebeneath; forming the ferrule structure with a bead about the end which projects from the section of the sewage system by separating the discharge pipe to be replaced from the ferrule structure at a wiped solder joint between the ferrule structure and the discharge pipe, leaving the bead formed by the solder on the ferrule structure; positioning a new discharge pipe with one end adjacent the ferrule structure and the other end positioned for connection to the toilet; attaching a flange to the other end of the discharge pipe for connecting and sealing the discharge pipe to the toilet; placing a compressible sleeve over the adjacent ends of the discharge pipe and ferrule structure; and compressing portions of the sleeve about the discharge pipe and ferrule structure with clamps for sealing the sleeve to the discharge pipe and ferrule structure.
Claim 3
Dependent Claim
56 words
A method as set forth in claim 1 wherein the step of positioning the end of the discharge pipe adjacent the ferrule structure comprises inserting a portion of the discharge pipe within the ferrule structure for supporting the discharge pipe with the ferrule structure and adjusting the length of the discharge pipe extending to the toilet.
Claim 4
Dependent Claim
52 words
A method as set forth in claim 1 and additionally comprising positioning the clamp which compresses the sleeve onto the ferrule structure adjacent the bead on the ferrule structure so as to also compress the sleeve about the bead, whereby the bead cooperatively assists in sealing the sleeve about the ferrule structure.
Claim 5
Dependent Claim
51 words
A method as set forth in claim 1 wherein the access is obtained through an opening in a floor and additionally comprising forming a floor portion within the opening and securing an ear projecting from the flange to the formed floor portion for supporting the discharge pipe from the floor portion.
Claim 6
Dependent Claim
36 words
A method as set forth in claim 4 wherein the portion of the floor is formed by casting, the ear projecting into the cast floor portion for securing the discharge pipe to the cast floor portion.
Claim 7
Dependent Claim
128 words
A method as set forth in claim 1 and additionally comprising forming a bore into the discharge pipe; inserting a stub portion of a nipple into the bore, the nipple also having a portion which projects from the discharge pipe and is adapted for connection to an end of another pipe, a passage which extends through the nipple for forming a flow path through the nipple from the inside of the discharge pipe to the other pipe, and a shield which extends radially beyond the projecting portion of the nipple and has a surface conformed to a juxtaposed exterior surface of the discharge pipe, and adhesively attaching the surface of the shield to the juxtaposed surface of the discharge pipe for sealing the nipple to the discharge pipe.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |