US3736788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping or swaging apparatus
Assignee: BTR Industries Ltd
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Filing: 1971-11-12
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Granted: 1973-06-05
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Expires: 1991-11-12
Abstract
Abstract Apparatus for crimping comprising a ring of dies, each die independently mounted on a support for radial sliding movement. The outer surfaces of the dies and the bore of a member are shaped so that relative movement between the member and ring, when the dies are in contact with the bore, causes the dies to move radially inwardly to effect crimping. The dies are wedgeshaped when viewed along the axis of the ring and the outer surfaces thereof may form a continuous surface when the dies are in the crimping position. The support may be in two parts relatively movable in a plane perpendicular to the ring axis, and means may be provided between adjacent dies to urge the dies apart.
Inventors
- 👤 Jones M Olive
- 👤 D Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:46
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/04; B21D39/046; B30; B30B; B30B7/00; B30B7/04; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5367
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
223 words
Apparatus for crimping a tube onto a component located within the tube, which apparatus comprises: a. a ring of radially extending spaced dies which define a space within which the tube is locatable, the dies being wedge-shaped as viewed along the ring axis so that the outer surfaces of the dies with respect to the axis are wider than the inner surfaces, b. a support at one axial end of the ring, which support has a part separable from the remainder of the support, c. means to mount the dies independently on the support for radial sliding movement with respect to the ring axis with some of the dies mounted on said part of the support, d. means for moving said part of the support linearly in a plane at right angles to the ring axis into and out of engagement with the remainder of the support, e. a member having a bore in which the ring of dies is engageable, the bore of the member and the outer surfaCes of the dies being shaped so that relative axial movement between the member and the ring along the ring axis in one direction causes the dies to be displaced radially inwardly with respect to the ring axis to effect crimping, and f. means to effect said relative movement of the member and ring.
Claim 2
Dependent Claim
223 words
Apparatus for crimping a tube onto a component located within the tube, which apparatus comprises: a. a ring of radially extending spaced dies which define a space within which the tube is locatable, the dies being wedge-shaped as viewed along the ring axis so that the outer surfaces of the dies with respect to the axis are wider than the inner surfaces, b. a support at one axial end of the ring, which support has a part separable from the remainder of the support, c. means to mount the dies independently on the support for radial sliding movement with respect to the ring axis with some of the dies mounted on said part of the support, d. means for moving said part of the support linearly in a plane at right angles to the ring axis into and out of engagement with the remainder of the support, e. a member having a bore in which the ring of dies is engageable, the bore of the member and the outer surfaCes of the dies being shaped so that relative axial movement between the member and the ring along the ring axis in one direction causes the dies to be displaced radially inwardly with respect to the ring axis to effect crimping, and f. means to effect said relative movement of the member and ring.
Claim 3
Dependent Claim
34 words
Apparatus as claimed in claim 1 in which the outer ends of the dies are formed so that in the inner crimping position the outer surface of the ring of dies is substantially continuous.
Claim 4
Dependent Claim
39 words
Apparatus as claimed in claim 1 in which resilient means are provided between adjacent pairs of dies for urging the dies away from one another so that when the member and ring are separated the dies move radially outwardly.
Claim 5
Dependent Claim
24 words
Apparatus as claimed in cliam claim in which the bore in the member is part-conical and the outer surfaces of the dies are part-conical.
Claim 6
Dependent Claim
28 words
Apparatus as claimed in claim 1 in which the support for the ring is fixed and the member is moved into and out of engagement with the ring.
Claim 7
Dependent Claim
22 words
Apparatus as claimed in claim 1 in which half the ring of dies is mounted on said separable part of the support.
Claim 8
Dependent Claim
35 words
Apparatus as claimed in claim 1 in which each die comprises a shoe on which said outer surface is formed and a finger detachably secured to the shoe on which the crimping face is formed.
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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |