US3866958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid tight conduit fastening system
Assignee: Individual
•
Filing: 1973-07-13
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Granted: 1975-02-18
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Expires: 1993-07-13
Abstract
Abstract This invention provides a fluid tight conduit union that utilizes a two piece coupling mechanism such as a screw and nut. The coupling mechanism clamps a separate seat insert which is attached to a member of the union assembly by a simple latching mechanism. The latching mechanism maintains positive attachment of the seat insert to a member of the union assembly when the coupling halves are separated.
Inventors
- 👤 Harold Gold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:52
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/04; F16L19/048; F16L19/08; F16L19/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
354 words
The means for fastening a conduit having a flanged end in a fluid tight assembly comprising: said flanged end, a seat member, a first coupling member and a second coupling member; said seat member having coaxial end faces, one of said end faces mating in sealing relationship with the seal face of said flanged end, said first coupling member being adapted to engage said flanged end and said coupling members being mutually adapted to clamp said seat member against said sealing face of said flanged end: a. said seat member being a cylinder coaxial with the axis of said end faces, said cylinder having a coaxial cylindrical groove spaced between said end faces by cylindrical lands; b. said first coupling member being a screw member, said screw member having a coaxial tubular portion extending forward of the threads of said member, the bore of said tubular portion extending in said screw member and joining a smaller coaxial bore therin, the shoulder formed at the junction of said bores being adapted to engage said flanged end, a pair of diametrally opposite inward indentations being in the wall of said tubular portion, said indentations projecting into said cylindrical groove in said seat member to attach said seat member to said screw member; c. the diametral distance between the innermost points of said indentations being less than the diameter of said lands but greater than the diameter of said groove, the diametral clearance between said lands and said bore of said tubular portion being sufficient to allow said tubular portion to ovalize when said indentations engage said lands thereby permitting the insertion of said seat member into said bore through the application of an axial force between said seat member and the screw member, the width of said groove being greater thaN the width of said indentations, lateral and axial play being thereby provided in said attachment; and, d. said second coupling member being a body having a threaded bore that mates with said screw member and having an internal shoulder that mates in sealing relationship with the second of said end faces of said seat member.
Claim 2
Dependent Claim
354 words
The means for fastening a conduit having a flanged end in a fluid tight assembly comprising: said flanged end, a seat member, a first coupling member and a second coupling member; said seat member having coaxial end faces, one of said end faces mating in sealing relationship with the seal face of said flanged end, said first coupling member being adapted to engage said flanged end and said coupling members being mutually adapted to clamp said seat member against said sealing face of said flanged end: a. said seat member being a cylinder coaxial with the axis of said end faces, said cylinder having a coaxial cylindrical groove spaced between said end faces by cylindrical lands; b. said first coupling member being a screw member, said screw member having a coaxial tubular portion extending forward of the threads of said member, the bore of said tubular portion extending in said screw member and joining a smaller coaxial bore therin, the shoulder formed at the junction of said bores being adapted to engage said flanged end, a pair of diametrally opposite inward indentations being in the wall of said tubular portion, said indentations projecting into said cylindrical groove in said seat member to attach said seat member to said screw member; c. the diametral distance between the innermost points of said indentations being less than the diameter of said lands but greater than the diameter of said groove, the diametral clearance between said lands and said bore of said tubular portion being sufficient to allow said tubular portion to ovalize when said indentations engage said lands thereby permitting the insertion of said seat member into said bore through the application of an axial force between said seat member and the screw member, the width of said groove being greater thaN the width of said indentations, lateral and axial play being thereby provided in said attachment; and, d. said second coupling member being a body having a threaded bore that mates with said screw member and having an internal shoulder that mates in sealing relationship with the second of said end faces of said seat member.
Claim 3
Dependent Claim
52 words
In the system of claim 1, said flanged end being a ferrule, said ferrule being adapted to grip said conduit to form a flange thereby, and said seat member being adapted at said first mentioned end face to provide radial compression of said ferrule under the clamping action of said coupling members.
Claim 4
Dependent Claim
20 words
In the system of claim 1, the fastening end of said conduit being flared, said flanged end being thereby provided.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |