Patent US2489339A successfully refreshed from Google Patents.
Patent US3966440A successfully refreshed from Google Patents.
US3662450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand-portable press for swagable pipe coupling
Assignee: Dresser Industries Inc
•
Filing: 1970-04-24
•
Granted: 1972-05-16
•
Expires: 1990-04-24
Abstract
Abstract A hand-portable press having hydraulically extendable shoe forming dies for swaging a pipe coupling into pipe joint formation with a contained pipe section. Each die is separately mounted for articulated movement on the inward end of a hydraulically moveable piston and is arcuate on its innermost face with which swaging is effected. Application of hydraulic pressure, by means of a portable hand pump, forces each piston and shoe die thereon inwardly until concentrically uniform swaging of a coupling into a pressure tight pipe joint with contained pipe is effected.
Inventors
- 👤 George D Kish
- 👤 Robert P Montesi
- 👤 Gerald B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:53
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/141; F16L13/142; B; B21; B21D; B21D39/00; B21D39/04; B21D39/046; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/53; Y10T29/5367
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
197 words
A hand-portable swaging press for swagable pipe couplings comprising in combination: a. a support frame generally forming an enclosure in which to encircle a pipe coupling and pipe to be coupled; b. fluid inlet means in said frame for receiving pressurized hydraulic fluid; c. a plurality of hydraulically operable pistons Angularly displaced symmetrically about said frame in fluid communication with said fluid inlet means, said pistons each being hydraulically movable concomitantly between a first position maintained in the absence of pressurized hydraulic fluid received at said inlet means to a second position projecting relatively inward of said formed enclosure in response to pressurized hydraulic fluid received at said inlet means; d. a die shoe on the inward end of each of said pistons, each of said shoes having a die-swaging face of arcuate formation and being maintained at a location displaced from a swagable portion of pipe coupling in said enclosure when said piston is in said first position and swageably engaging against the coupling portion when said piston is caused to move to said second position; and e. means mounting the die shoes to their respective pistons in a manner providing for relative articulated movement therebetween.
Claim 2
Dependent Claim
197 words
A hand-portable swaging press for swagable pipe couplings comprising in combination: a. a support frame generally forming an enclosure in which to encircle a pipe coupling and pipe to be coupled; b. fluid inlet means in said frame for receiving pressurized hydraulic fluid; c. a plurality of hydraulically operable pistons Angularly displaced symmetrically about said frame in fluid communication with said fluid inlet means, said pistons each being hydraulically movable concomitantly between a first position maintained in the absence of pressurized hydraulic fluid received at said inlet means to a second position projecting relatively inward of said formed enclosure in response to pressurized hydraulic fluid received at said inlet means; d. a die shoe on the inward end of each of said pistons, each of said shoes having a die-swaging face of arcuate formation and being maintained at a location displaced from a swagable portion of pipe coupling in said enclosure when said piston is in said first position and swageably engaging against the coupling portion when said piston is caused to move to said second position; and e. means mounting the die shoes to their respective pistons in a manner providing for relative articulated movement therebetween.
Claim 3
Dependent Claim
22 words
A swaging press according to claim 1 including a manually operable hydraulic hand pump having its outlet connected to said fluid means.
Claim 4
Dependent Claim
23 words
A swaging press according to claim 1 in which said frame is comprised of a plurality of elongated links interconnectable at their ends.
Claim 5
Dependent Claim
34 words
A swaging press according to claim 1 in which each piston of said plurality has a hydraulically responsive area substantially greater than the effective area of die swaging face of the die mounted thereon.
Claim 6
Dependent Claim
28 words
A swaging press according to claim 4 in which the ratio of said responsive piston area to said die face area is at least 1 1/2 to 1.
Claim 7
Dependent Claim
47 words
A swaging press according to claim 1 in which said mounting means comprises a ball and socket joint with one of said shoe and piston having an at least partially spherical projection and the other having an at least partially spherical recess for receivably engaging said projection.
Claim 8
Dependent Claim
29 words
A swaging press according to claim 6 including biasing means maintaining engagement between each of said shoe and piston and generally urging said shoe to a predetermined alignment therebetween.
Claim 9
Dependent Claim
48 words
A swaging press according to claim 6 in which at least one shoe of said plurality includes index means extending radially inward thereof to engage a reference recess surface on a coupling periphery for generally locating said shoes axially relative to the swagable portion of a received coupling.
Claim 10
Dependent Claim
48 words
A swaging press according to claim 7 in which at least one shoe of said plurality includes index means extending radially inward thereof to engage a reference recess surface on a coupling periphery for generally locating said shoes axially relative to the swagable portion of a received coupling.
Claim 11
Dependent Claim
17 words
A swaging press according to claim 9 in which each of said shoes includes said index means.
Claim 12
Dependent Claim
52 words
A swaging press according to claim 9 including a plurality of outriggers angularly displaced about one end of said frame and each projecting inwardly of said formed enclosure to a termination radially adjacent a coupling or pipe periphery thereat for generally effecting an axial coalignment with a received coupling and pipe thereat.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |