Patent US4331019A successfully refreshed from Google Patents.
US4331019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for crimping tubular elements
Assignee: NUMERICAL TAPE CONTROL Ltd
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Filing: 1979-10-12
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Granted: 1982-05-25
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Expires: 1999-10-12
Abstract
Abstract A crimping device is disclosed having a plurality of dies driven by a camming action toward a central axis so that an article between the dies can be crimped. A hydraulic actuator is provided for causing the camming action for moving the dies. An adjusting member forming a stop is provided for defining an end-of-stroke position of the hydraulic actuator for adjustment of the radial spacing between the dies.
Inventors
- 👤 John L. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:27
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/04; B21D39/046; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5367
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
145 words
A crimping device comprising a plurality of dies disposed round an axis, camming means for driving the dies toward the axis by a camming action so that an article between the dies can be crimped, a hydraulic actuator for causing axial relative movement between the dies and the camming means, said actuator having an output member, said output member extending through a threaded bore, and an annular adjusting member encircling said output member and threadedly mounted in said threaded bore so as to selectively positionable in the axial direction, the output member including abutment means positioned to contact the adjusting member at the end of the stroke of the actuator, the adjusting member thus forming a stop defining an end-of-stroke position of the hydraulic actuator, whereby to enable adjustment of the radial spacing which exists between the dies when the actuator has completed its stroke.
Claim 2
Dependent Claim
145 words
A crimping device comprising a plurality of dies disposed round an axis, camming means for driving the dies toward the axis by a camming action so that an article between the dies can be crimped, a hydraulic actuator for causing axial relative movement between the dies and the camming means, said actuator having an output member, said output member extending through a threaded bore, and an annular adjusting member encircling said output member and threadedly mounted in said threaded bore so as to selectively positionable in the axial direction, the output member including abutment means positioned to contact the adjusting member at the end of the stroke of the actuator, the adjusting member thus forming a stop defining an end-of-stroke position of the hydraulic actuator, whereby to enable adjustment of the radial spacing which exists between the dies when the actuator has completed its stroke.
Claim 3
Dependent Claim
36 words
A crimping device as claimed in claim 1, wherein said output member includes a piston, the piston is located in a cylinder, and the threaded bore is co-axial with, and forms an extension of, said cylinder.
Claim 4
Dependent Claim
30 words
A crimping device as claimed in claim 1, wherein the adjusting member and a stationary adjacent portion of the device carry a cooperating datum mark and a peripherally extending scale.
Claim 5
Dependent Claim
35 words
A crimping device as claimed in claim 3, comprising a second scale extending axially and fixed adjacent to the adjusting member, the adjusting member having a datum portion thereon which cooperates with said second scale.
Claim 6
Dependent Claim
28 words
A crimping device as claimed in claim 1, comprising a spring co-axial with said output member for restoring the actuator from an end-of-stroke position to a beginning-of-stroke position.
Claim 7
Dependent Claim
54 words
A crimping device as claimed in claim 5, wherein said output member includes a piston, the piston is located in a cylinder, the spring is a tension spring, there is an axial bore in said output member, the spring being located between one end of said bore and an internal end of said cylinder.
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US3335594A
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US3568494A
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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) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |