US3579794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for securing couplings to pipe
Assignee: Individual
•
Filing: 1969-10-03
•
Granted: 1971-05-25
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Expires: 1989-10-03
Abstract
Abstract A means and method of constricting a coupling having internal teeth onto a pair of abutting pipe sections; the means comprising an assembly of split rings which may be secured around a pair of abutting pipe sections and a coupling having internal teeth initially slidable on the pipe sections, at least one of the rings containing a constricting die adapted, when forced axially over the coupling, to constrict the coupling and force the teeth into the pipe sections; a hydraulic ram being placed between a pair of rings to effect relative movement of the die and coupling and thus constrict the coupling. One embodiment involves a pair of constricting dies movable toward each other and another involving a single die and a sleeve for forcing the coupling through the die.
Inventors
- 👤 Jonathan S Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:18
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/146; F16L47/00; F16L47/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49835; Y10T29/49837; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/53; Y10T29/5367; Y10T403/00; Y10T403/49; Y10T403/4958
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
163 words
A means for securing a coupling sleeve having a set of internal teeth initially slidable over abutting pipe ends, said means comprising: a. a pair of split end rings; b. a split intermediate ring disposed between the end rings; c. the rings adapted to be opened for lateral insertion of said coupling sleeve and pipe ends, and closed to retain the coupling sleeve and pipe ends therein; d. a split constricting die received in one of the end rings, the die having a tapered die face adapted, when forced axially over the coupling sleeve, to constrict the coupling sleeve progressively and cause sequential penetration of the internal teeth into the underlying pipe ends; e. a split element carried by said intermediate ring adapted to engage the coupling sleeve in opposition to the die; f. and thrust means disposed between one of the end rings and the intermediate ring to force said die and element toward each other thereby to constrict the coupling sleeve.
Claim 2
Dependent Claim
163 words
A means for securing a coupling sleeve having a set of internal teeth initially slidable over abutting pipe ends, said means comprising: a. a pair of split end rings; b. a split intermediate ring disposed between the end rings; c. the rings adapted to be opened for lateral insertion of said coupling sleeve and pipe ends, and closed to retain the coupling sleeve and pipe ends therein; d. a split constricting die received in one of the end rings, the die having a tapered die face adapted, when forced axially over the coupling sleeve, to constrict the coupling sleeve progressively and cause sequential penetration of the internal teeth into the underlying pipe ends; e. a split element carried by said intermediate ring adapted to engage the coupling sleeve in opposition to the die; f. and thrust means disposed between one of the end rings and the intermediate ring to force said die and element toward each other thereby to constrict the coupling sleeve.
Claim 3
Dependent Claim
33 words
A means, as defined in claim 1, wherein: a. said element is a ram sleeve dimensioned to pass through the constricting die thereby to thrust the coupling sleeve entirely through the constricting die.
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |