US3761114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe to flange couplings
Assignee: Victaulic Co PLC
•
Filing: 1971-08-30
•
Granted: 1973-09-25
•
Expires: 1991-08-30
Abstract
Abstract Rigid coupling of a length of pipe to another length having a flange at its end or to piping appurtenances having a flanged end by employing a pressure responsive gasket formed to seal on the cylindrical surface of the first pipe length and against the surface on the flange of the other pipe end at right angles thereto. The gasket is housed in a readily applicable coupling member which has provision for engaging the pipe outwardly of the gasket and which includes a flange portion mated to the flange on the end of the other pipe section. The mated flanges have aligned bores for the passage of bolts therethrough to secure them in position for the basket to be effective. The coupling housing may be of two or more segments of a cylinder hinged together to form a complete cylinder with a key section to seat in a groove formed in the pipe. Spaced teeth may be provided on the key section for ''''rigid'''' coupling, or the leading edge of the key section may have a rounded contour for closer fit in a groove.
Inventors
- 👤 J Blakeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:38
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/024; F16L23/028; F16L23/0286; F16L23/032; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/4453
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
205 words
A hinged flanged coupler for coupling a pipe to a flange formed on the end of an adjacent member comprising annular segments hingedly connected for positioning at a joint as a complete annulus having substantially planar front and rear faces for connection to a flange by means of bolts passing through bores from front to rear of said annulus, each segment having rounded end portions the thickness of which is approximately half the thickness from front to rear of said complete annulus, said end portions of adjacent segments overlapping, a tubular sleeve extending through aligned bores in a pair of said overlapping end portions holding said segments in assembled relationship while permitting hinged opening of the annulus to receive a pipe end therewithin, bores formed in other end portions of said segments for reception of a bolt to retain said segments in closed annular relationship about a pipe end, a recess formed in the front face of said segments for reception of a gasket, and key means extending inwardly from the inner periphery of said segments rearward of said recess, said key means carrying means for abutting against and engaging a generally radial surface of a pipe for rigidly securing said pipe to said flange.
Claim 2
Dependent Claim
205 words
A hinged flanged coupler for coupling a pipe to a flange formed on the end of an adjacent member comprising annular segments hingedly connected for positioning at a joint as a complete annulus having substantially planar front and rear faces for connection to a flange by means of bolts passing through bores from front to rear of said annulus, each segment having rounded end portions the thickness of which is approximately half the thickness from front to rear of said complete annulus, said end portions of adjacent segments overlapping, a tubular sleeve extending through aligned bores in a pair of said overlapping end portions holding said segments in assembled relationship while permitting hinged opening of the annulus to receive a pipe end therewithin, bores formed in other end portions of said segments for reception of a bolt to retain said segments in closed annular relationship about a pipe end, a recess formed in the front face of said segments for reception of a gasket, and key means extending inwardly from the inner periphery of said segments rearward of said recess, said key means carrying means for abutting against and engaging a generally radial surface of a pipe for rigidly securing said pipe to said flange.
Claim 3
Dependent Claim
21 words
The coupler of claim 1 wherein said key means carries a plurality of sharp teeth for engaging said generally radial surface.
Claim 4
Dependent Claim
40 words
THe coupler of claim 1 wherein said generally radial surface is the wall of a groove in said pipe and said key means carries a plurality of sharp teeth for biting into said groove wall upon tightening of the coupler.
Claim 5
Dependent Claim
23 words
The coupler of claim 1 wherein said key means has a plurality of equally spaced sharp teeth formed integrally with said key means.
Claim 6
Dependent Claim
27 words
The coupler of claim 1, said segments throughout the extent thereof being formed with equally spaced bolt receiving bores radially equidistant from the center of said annulus.
Claim 7
Dependent Claim
22 words
The coupler of claim 1 and including lugs extending laterally from said segments and radially extending adjustable means carried by said lugs.
Claim 8
Dependent Claim
31 words
The coupler according to claim 1 wherein said key means has a toe portion with curved profile for fitting tightly against the curved wall of a radiused groove in said pipe.
Claim 9
Dependent Claim
26 words
The coupler according to claim 13 wherein said recess is an annular recess adjacent said key means for reception of a generally annular sealing gasket therebetween.
Claim 10
Dependent Claim
148 words
In coupling construction for coupling a pipe to a flanged element, the arrangement comprising: a pipe having a circumferential groove formed therein, a pair of members formed to encompass said pipe, said members being semicircular and hinged together at one overlapping pair of their ends and detachably secured at the other ends, said members being formed to extend radially outward from said pipe in the form of an annular flange, bores through said members extending parallel to the pipe axis for receiving fasteners to secure said pipe to a flanged element, a recess in said members for reception of a gasket, a gasket seated in said recess, and key sections on said member formed with a plurality of sharp teeth for tightly fitting into the groove in said pipe and biting into the material of the pipe at said groove, whereby the coupling is of the rigid type.
Claim 11
Dependent Claim
148 words
In coupling construction for coupling a pipe to a flanged element, the arrangement comprising: a pipe having a circumferential groove formed therein, a pair of members formed to encompass said pipe, said members being semicircular and hinged together at one overlapping pair of their ends and detachably secured at the other ends, said members being formed to extend radially outward from said pipe in the form of an annular flange, bores through said members extending parallel to the pipe axis for receiving fasteners to secure said pipe to a flanged element, a recess in said members for reception of a gasket, a gasket seated in said recess, and key sections on said member formed with a plurality of sharp teeth for tightly fitting into the groove in said pipe and biting into the material of the pipe at said groove, whereby the coupling is of the rigid type.
References Cited (Backward Citations)
US1683076A
Cited
US1784667A
Cited
US1893841A
Cited
US2449795A
Cited
US2467061A
Cited
US3024046A
Cited
US3287034A
Cited
US3415547A
Cited
US3551006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |