US3870064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making a branch connection under pressure to a pipe and a screwthreaded branch connection for carrying out said method
Assignee: Pont a Mousson SA
•
Filing: 1973-03-02
•
Granted: 1975-03-11
•
Expires: 1993-03-02
Abstract
Abstract For achieving a branch connection to a pipe under pressure by means of a screwthreaded connector provided with a sealing device interposed between a radially projecting member on the connector and the pipe, there is produced a fluidtight enclosure having an aperture whose contour is connected in the fluidtight manner to the region of the pipe in which the branch connection is to be made. The sealing device is applied against the pipe before producing the enclosure so that the contour of the aperture of the enclosure is connected to the pipe through the applied sealing device. A hole is thereafter drilled in the pipe and tapped and the connector screwed in the tapped hole from inside the enclosure.
Inventors
- 👤 Pierre Vigneron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:20
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; F16L41/06; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0441; Y10T137/0452; Y10T137/0458; Y10T137/0463; Y10T137/598; Y10T137/612; Y10T137/6123
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
112 words
A method for making a branch connection of a connector to a pipe under pressure, the connector having a body, a screwthreaded portion and means defining a member projecting radially from the body, comprising applying a sealing device to the pipe in a region of the pipe in which the branch connection is to be made, taking means defining a fluidtight enclosure having a portion defining an aperture, applying the periphery of the aperture against the sealing device, drilling and tapping a hole in the pipe and thereafter screwing the screwthreaded portion of the connector in the tapped hole from inside the enclosure until said projecting member bears against the sealing device.
Claim 2
Independent Claim
112 words
A method for making a branch connection of a connector to a pipe under pressure, the connector having a body, a screwthreaded portion and means defining a member projecting radially from the body, comprising applying a sealing device to the pipe in a region of the pipe in which the branch connection is to be made, taking means defining a fluidtight enclosure having a portion defining an aperture, applying the periphery of the aperture against the sealing device, drilling and tapping a hole in the pipe and thereafter screwing the screwthreaded portion of the connector in the tapped hole from inside the enclosure until said projecting member bears against the sealing device.
Claim 3
Independent Claim
112 words
A method for making a branch connection of a connector to a pipe under pressure, the connector having a body, a screwthreaded portion and means defining a member projecting radially from the body, comprising applying a sealing device to the pipe in a region of the pipe in which the branch connection is to be made, taking means defining a fluidtight enclosure having a portion defining an aperture, applying the periphery of the aperture against the sealing device, drilling and tapping a hole in the pipe and thereafter screwing the screwthreaded portion of the connector in the tapped hole from inside the enclosure until said projecting member bears against the sealing device.
Claim 4
Independent Claim
112 words
A method for making a branch connection of a connector to a pipe under pressure, the connector having a body, a screwthreaded portion and means defining a member projecting radially from the body, comprising applying a sealing device to the pipe in a region of the pipe in which the branch connection is to be made, taking means defining a fluidtight enclosure having a portion defining an aperture, applying the periphery of the aperture against the sealing device, drilling and tapping a hole in the pipe and thereafter screwing the screwthreaded portion of the connector in the tapped hole from inside the enclosure until said projecting member bears against the sealing device.
Claim 5
Independent Claim
164 words
A method for making a branch connection of a connector to a pipe under pressure, the connector having a body, a screwthreaded portion and means defining a member projecting radially from the body, comprising applying a sealing device to the pipe in a region of the pipe in which the branch connection is to be made, taking a machine comprising a fluidtight box, a bearing member defining an aperture and combined with the box, means for bringing in succession a drilling and tapping tool disposed inside the box and a head for supporting and screwing a connector disposed inside the box in alignment with the aperture, connecting the connector to the head, applying the bearing member against the sealing device and urging the bearing member in the direction of the pipe, drilling and tapping a hole in the pipe by means of the tool, thereafter screwing the connector in the tapped hole by means of the head, and detaching the machine from the pipe.
Claim 6
Independent Claim
164 words
A method for making a branch connection of a connector to a pipe under pressure, the connector having a body, a screwthreaded portion and means defining a member projecting radially from the body, comprising applying a sealing device to the pipe in a region of the pipe in which the branch connection is to be made, taking a machine comprising a fluidtight box, a bearing member defining an aperture and combined with the box, means for bringing in succession a drilling and tapping tool disposed inside the box and a head for supporting and screwing a connector disposed inside the box in alignment with the aperture, connecting the connector to the head, applying the bearing member against the sealing device and urging the bearing member in the direction of the pipe, drilling and tapping a hole in the pipe by means of the tool, thereafter screwing the connector in the tapped hole by means of the head, and detaching the machine from the pipe.
Claim 7
Dependent Claim
187 words
A branch connection to a pipe under pressure, comprising a connector having a body, a screwthreaded portion and means defining a radially projecting member integral with the body, a sealing device comprising an elastically yieldable annular sealing element mounted on the body and a rigid annular rinG coaxial with the interposed between said sealing element and said radially projecting member and surrounding the body, the sealing element having a sleeve portion and an outer flange disposed at one end of the sleeve portion and the ring having an internal cavity having a first portion defining a first shoulder and a larger second portion defining a second shoulder with the first portion, the ring having an annular end face adjoining said second portion, the radial thickness in the free state of the sleeve portion of the sealing element being greater than the width of the annular space between the first portion of the cavity and the body of the connector and the axial thickness in the free state of the flange of the sealing element being greater than the axial extent of the second portion of the cavity.
Claim 8
Dependent Claim
187 words
A branch connection to a pipe under pressure, comprising a connector having a body, a screwthreaded portion and means defining a radially projecting member integral with the body, a sealing device comprising an elastically yieldable annular sealing element mounted on the body and a rigid annular rinG coaxial with the interposed between said sealing element and said radially projecting member and surrounding the body, the sealing element having a sleeve portion and an outer flange disposed at one end of the sleeve portion and the ring having an internal cavity having a first portion defining a first shoulder and a larger second portion defining a second shoulder with the first portion, the ring having an annular end face adjoining said second portion, the radial thickness in the free state of the sleeve portion of the sealing element being greater than the width of the annular space between the first portion of the cavity and the body of the connector and the axial thickness in the free state of the flange of the sealing element being greater than the axial extent of the second portion of the cavity.
Claim 9
Dependent Claim
28 words
A branch connection as claimed in claim 3, wherein the sleeve portion of the sealing element is tubular and frustoconical and divergent in the direction of the flange.
Claim 10
Dependent Claim
39 words
A branch connection as claimed in claim 3, wherein the radially projecting member has a first bearing surface bearing against the ring and the ring as a second axial bearing surface which is radially outside the first bearing surface.
Claim 11
Dependent Claim
45 words
A branch connection as claimed in claim 3, wherein the ring has a portion axially adjacent the cavity and having an axial dimension which is less than the axial extent of a portion of the body between the screwthreaded portion and the radially projecting member.
Claim 12
Dependent Claim
26 words
A sealing element for a branch connection made under pressure comprising a sleeve portion and an outer flange disposed at one end of the sleeve portion.
Claim 13
Dependent Claim
26 words
A sealing element for a branch connection made under pressure comprising a sleeve portion and an outer flange disposed at one end of the sleeve portion.
References Cited (Backward Citations)
US3349792A
Cited
US3822718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |