Patent US3653249A successfully refreshed from Google Patents.
US3653249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawn and ironed containers
Assignee: Alcoa Corp
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Filing: 1970-03-17
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Granted: 1972-04-04
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Expires: 1990-03-17
Abstract
Abstract A tool pack assembly for an ironing press for forming thinwalled container bodies including a die block having an open slot herein for receiving a plurality of ironing rings which are secured in the die block by means of an axially expandable hollow jack screw, with the die orifices in the rings in co-axial alignment with the press mandrel. Spacer rings are provided between the ironing rings and have means associated therewith for introducing lubricant around the entire periphery of the container body prior to movement of the body through successive ironing rings.
Inventors
- 👤 Lloyd G Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:10
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/18; B21D22/00; B21D22/20; B21D22/28; B21D22/286
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
168 words
In an ironing press having a press bed and a reciprocal mandrel, a tool pack assembly secured to the press bed comprising: a. a die block having an elongated open slot therein with its longitudinal axis aligned with the press mandrel; b. a plurality of ironing rings transversely disposed in the slot in the die block, said ironing rings having radial dimensions which are less than the transverse dimensions of the slot to permit axial alignment of the rings in the slot; c. apertured means at the ends of the slot in said die block for retaining said ironing rings in the slot between said means while permitting the press mandrel to pass therethrough; and d. adjustable means disposed in the slot in the die block between said apertured end means for applying pressure, either directly or indirectly, against said ironing rings parallel to the longitudinal axis of the slot to secure the ironing rings in the slot whereby they can be quickly and easily replaced and aligned.
Claim 2
Dependent Claim
168 words
In an ironing press having a press bed and a reciprocal mandrel, a tool pack assembly secured to the press bed comprising: a. a die block having an elongated open slot therein with its longitudinal axis aligned with the press mandrel; b. a plurality of ironing rings transversely disposed in the slot in the die block, said ironing rings having radial dimensions which are less than the transverse dimensions of the slot to permit axial alignment of the rings in the slot; c. apertured means at the ends of the slot in said die block for retaining said ironing rings in the slot between said means while permitting the press mandrel to pass therethrough; and d. adjustable means disposed in the slot in the die block between said apertured end means for applying pressure, either directly or indirectly, against said ironing rings parallel to the longitudinal axis of the slot to secure the ironing rings in the slot whereby they can be quickly and easily replaced and aligned.
Claim 3
Dependent Claim
24 words
A tool pack assembly as set forth in claim 1 which includes a pre-draw ring secured therein on the entrance end of the assembly.
Claim 4
Dependent Claim
26 words
A tool pack assembly as set forth in claim 1 which includes at least one centrally apertured lubrication ring in the slot in said die block.
Claim 5
Dependent Claim
49 words
A tool pack assembly as set forth in claim 3 in which the lubrication ring has an annular lubrication chamber leading into an annular passageway around the entire periphery of the central aperture in the ring for feeding lubricant onto a container body as it moves through the ring.
Claim 6
Dependent Claim
60 words
A tool pack assembly as set forth in claim 1 in which said apertured retaining means at the ends of the slot in the die block have oppositely facing planar surfaces each of which is normal to the axis of the press mandrel for abutment and securement of said ironing rings against said surfaces in axial alignment with the mandrel.
Claim 7
Dependent Claim
29 words
A tool pack assembly as set forth in claim 1 in which a small radial clearance is provided between said ironing rings and the slot in the die block.
Claim 8
Dependent Claim
20 words
A tool pack assembly as set forth in claim 1 in which the slot in said die block is U-shaped.
Claim 9
Dependent Claim
20 words
A tool pack assembly as set forth in claim 1 in which said jack means is a hollow jack screw.
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |