Patent US4111235A successfully refreshed from Google Patents.
US4111235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe cap
Assignee: BJ Hughes Inc
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Filing: 1976-07-06
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Granted: 1978-09-05
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Expires: 1996-07-06
Abstract
Abstract A cap for installation over the open end of a tubular member that has a pipe or pipes of smaller diameter projecting through the open end of the tubular member. The cap has a rubber discoid portion that covers the open end of the tubular member and a rubber apron extending from the discoid portion and adapted to encircle the tubular member adjacent to its open end. An aperture or apertures for the pipes of smaller diameter are provided in the discoid portion. The cap is split except at the back where a portion including the apron provides a hinge. The split intersects the aperture or apertures. A split, flexible metal band is embedded in the apron and has a latch for tightening and locking the apron about the tubular member. To install the cap, it is hinged open and placed over the end of the tubular member with the smaller diameter pipes passing through the apertures, and is then closed around the tubular member and locked.
Inventors
- 👤 Charles Alexander Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:11
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
229 words
The combination with the open end of a cylindrical tubular member that has a pipe of smaller diameter projecting through its open and of a sealing cap installed over the open end of said cylindrical tubular member and surrounding said pipe for sealing said pipe to said member, said cap comprising: an elastomeric discoid portion covering the open end of said tubular member and having wall means defining an aperture and closely encircling said pipe of smaller diameter; a cylindrical, elastomeric apron extending from said discoid portion and closely encircling said tubular member adjacent to its open end; said apron and said discoid portion having mutually abutting walls defining a split extending from the free edge of said apron, through said apron and through a part of said discoid portion to intersect said wall means defining said aperture; a flexible, cylindrical band embedded in said apron and defining a split substantially aligned with the section of said split that extends through said apron; and securing means disposed at one side of said aperture, operative between the ends of said band adjacent to its said split, and drawing the ends of said band relatively together thereby compressing said apron into tight engagement with said tubular member, and pressing said walls of said split together and said wall means defining said aperture into tight engagement with said pipe of smaller diameter.
Claim 2
Dependent Claim
229 words
The combination with the open end of a cylindrical tubular member that has a pipe of smaller diameter projecting through its open and of a sealing cap installed over the open end of said cylindrical tubular member and surrounding said pipe for sealing said pipe to said member, said cap comprising: an elastomeric discoid portion covering the open end of said tubular member and having wall means defining an aperture and closely encircling said pipe of smaller diameter; a cylindrical, elastomeric apron extending from said discoid portion and closely encircling said tubular member adjacent to its open end; said apron and said discoid portion having mutually abutting walls defining a split extending from the free edge of said apron, through said apron and through a part of said discoid portion to intersect said wall means defining said aperture; a flexible, cylindrical band embedded in said apron and defining a split substantially aligned with the section of said split that extends through said apron; and securing means disposed at one side of said aperture, operative between the ends of said band adjacent to its said split, and drawing the ends of said band relatively together thereby compressing said apron into tight engagement with said tubular member, and pressing said walls of said split together and said wall means defining said aperture into tight engagement with said pipe of smaller diameter.
Claim 3
Dependent Claim
15 words
The combination defined in claim 1 wherein said apron is integral with said discoid portion.
Claim 4
Dependent Claim
40 words
The combination defined in claim 1, wherein said securing means comprise interdigitated channel members at said ends of said band, said channel members being in alignment and receiving a tapered pin for drawing said ends of said band relatively together.
Claim 5
Dependent Claim
16 words
The combination defined in claim 3, wherein said band and said securing means are of metal.
Claim 6
Dependent Claim
17 words
The combination defined in claim 1, including annular groove means on the inner periphery of said apron.
Claim 7
Dependent Claim
244 words
The combination with the open end of a cylindrical tubular member that has two pipes of smaller diameter projecting through its open end substantially along a diameter of said tubular member of a sealing cap installed over the open end of said cylindrical tubular member and surrounding said pipes for sealing said pipes to said member, said cap comprising: an elastomeric discoid portion covering the open end of said tubular member and having wall means defining a pair of apertures and closely encircling said respective pipes of smaller diameter; a cylindrical, elastomeric apron extending from said discoid portion and closely encircling said tubular member adjacent to its open end; said apron and said discoid portion having mutually abutting walls defining a diametral split extending from the free edge of said apron through said apron and through parts of said discoid portion to intersect said wall means defining said pair of apertures; a flexible, cylindrical band embedded in said apron and defining a split substantially aligned with the section of said split that extends through said apron; and securing means at one side of said aperture, operative between the ends of said band adjacent to its said split, and drawing the ends of said band relatively together thereby compressing said apron into tight engagement with said tubular member, and pressing said walls of said split together and said wall means defining said pair of apertures into tight engagement with said respective pipes of smaller diameter.
Claim 8
Dependent Claim
244 words
The combination with the open end of a cylindrical tubular member that has two pipes of smaller diameter projecting through its open end substantially along a diameter of said tubular member of a sealing cap installed over the open end of said cylindrical tubular member and surrounding said pipes for sealing said pipes to said member, said cap comprising: an elastomeric discoid portion covering the open end of said tubular member and having wall means defining a pair of apertures and closely encircling said respective pipes of smaller diameter; a cylindrical, elastomeric apron extending from said discoid portion and closely encircling said tubular member adjacent to its open end; said apron and said discoid portion having mutually abutting walls defining a diametral split extending from the free edge of said apron through said apron and through parts of said discoid portion to intersect said wall means defining said pair of apertures; a flexible, cylindrical band embedded in said apron and defining a split substantially aligned with the section of said split that extends through said apron; and securing means at one side of said aperture, operative between the ends of said band adjacent to its said split, and drawing the ends of said band relatively together thereby compressing said apron into tight engagement with said tubular member, and pressing said walls of said split together and said wall means defining said pair of apertures into tight engagement with said respective pipes of smaller diameter.
Claim 9
Dependent Claim
15 words
The combination defined in claim 6, wherein said apron is integral with said discoid portion.
Claim 10
Dependent Claim
40 words
The combination defined in claim 6, wherein said securing means comprise interdigitated channel members at said ends of said band, said channel members being in alignment and receiving a tapered pin for drawing said ends of said band relatively together.
Claim 11
Dependent Claim
16 words
The combination defined in claim 8, wherein said band and said channel members are of metal.
Claim 12
Dependent Claim
17 words
The combination defined in claim 6, including annular groove means on the inner periphery of said apron.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |