Patent US3786677A successfully refreshed from Google Patents.
US3786677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for testing swaged ferrules
Assignee: Crawford Fitting Co
•
Filing: 1972-11-20
•
Granted: 1974-01-22
•
Expires: 1992-11-20
Abstract
Abstract Apparatus for testing the swaging of one or more ferrules on the periphery of a cylindrical member such as a tube. The apparatus shown in the drawings includes means for applying a predetermined longitudinally directed force against an end of the tube while the ferrules are held to determine whether or not the tube will move relative to the ferrules.
Inventors
- 👤 L Spontelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:46
CPC Classifications
G; G01; G01M; G01M99/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
Apparatus for testing the swaging to the outer surface of a cylindrical member of ferrules of fittings of the type including a coupling nut having a threaded internal opening and adapted to encircle the cylindrical member and an associated ferrule positioned on the cylindrical member, said apparatus comprising: a body having a bore; a piston within said bore; external thread means on said body circumferentially of said bore adapted to threadedly engage the threaded internal opening of a coupling nut carried on a tube or rod; means within said bore for aligning the tube or rod with said bore and limiting the movement of a ferrule swaged on the periphery of the tube or rod; power means driving for said piston toward the end of the tube or rod; and, indicator means for providing an indication of the driving force applied to said piston.
Claim 2
Dependent Claim
144 words
Apparatus for testing the swaging to the outer surface of a cylindrical member of ferrules of fittings of the type including a coupling nut having a threaded internal opening and adapted to encircle the cylindrical member and an associated ferrule positioned on the cylindrical member, said apparatus comprising: a body having a bore; a piston within said bore; external thread means on said body circumferentially of said bore adapted to threadedly engage the threaded internal opening of a coupling nut carried on a tube or rod; means within said bore for aligning the tube or rod with said bore and limiting the movement of a ferrule swaged on the periphery of the tube or rod; power means driving for said piston toward the end of the tube or rod; and, indicator means for providing an indication of the driving force applied to said piston.
Claim 3
Dependent Claim
24 words
The apparatus as defined in claim 1 wherein said power means comprise hydraulic means, and wherein said indicator means comprises a pressure indicating gauge.
Claim 4
Dependent Claim
43 words
The apparatus as defined in claim 2 wherein said means for aligning a tube or rod with said bore and limiting the movement of a ferrule swaged on the periphery of the tube or rod comprises a camming mouth formed in said bore.
References Cited (Backward Citations)
US2735294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |