US3575033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing beader
Assignee: Ford Motor Co
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Filing: 1969-03-14
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Granted: 1971-04-13
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Expires: 1989-03-14
Abstract
Abstract A die member contains an annular passage that surrounds the exterior of a tube end and a guide pin that extends into the passage in the tube beyond the location of a desired bead. The tube is clamped into a holder at the approximate location of the bead and a force is applied to the die member to move the member toward the holder. This movement deforms the tube wall outward between the die member and the holder, thus forming a bead on the tube at a point remote from the tube end.
Inventors
- 👤 Howard F Meyer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:03
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/20; B21C37/205; B21D; B21D41/00; B21D41/02; B21D41/021
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
152 words
A mechanism for producing a bead in a hoLlow tube made of a deformable material, said bead being located away from the tube end, said mechanism comprising: holder means for engaging said tube at a distance remote from the tube end, said holder means preventing the tube from moving longitudinally; die means having an annular groove fitting on the tube end and surrounding the tube exterior for a longitudinal distance approximately equal to the length of tube desired between the bead and the tube end, said die means having an integral guide member extending into the tube passage beyond the desired location of the bead; and compressing means for exerting a force moving said die means toward said holder means, said force deforming a portion of the wall of said tube into an externally projecting bead without changing significantly the shape of the tube portion between the bead and the tube end.
Claim 2
Dependent Claim
152 words
A mechanism for producing a bead in a hoLlow tube made of a deformable material, said bead being located away from the tube end, said mechanism comprising: holder means for engaging said tube at a distance remote from the tube end, said holder means preventing the tube from moving longitudinally; die means having an annular groove fitting on the tube end and surrounding the tube exterior for a longitudinal distance approximately equal to the length of tube desired between the bead and the tube end, said die means having an integral guide member extending into the tube passage beyond the desired location of the bead; and compressing means for exerting a force moving said die means toward said holder means, said force deforming a portion of the wall of said tube into an externally projecting bead without changing significantly the shape of the tube portion between the bead and the tube end.
Claim 3
Dependent Claim
46 words
The mechanism of claim 1 in which the holder means comprises a pair of bars movable toward each other, the contact surfaces of said bars containing corresponding semicircular openings that close around a tube placed in the openings when the bars are moved toward each other.
Claim 4
Dependent Claim
22 words
The mechanism of claim 2 in which the surfaces of the bars on the side facing the die means are substantially square.
Claim 5
Dependent Claim
28 words
The mechanism of claim 3 in which the exterior edge of the annular groove in said die member is angled relative to the longitudinally axis of the tube.
Claim 6
Dependent Claim
22 words
The mechanism of claim 1 in which the surfaces of the bars on the side facing the die means are substantially square.
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |