US3698219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forging
Assignee: RTX Corp
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Filing: 1971-05-10
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Granted: 1972-10-17
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Expires: 1991-05-10
Abstract
Abstract Forging means are shown wherein a heating device is located around the dies so that the heat can be controlled while the press is being operated. Means are provided to place an inert atmosphere or vacuum around the dies while they are forging a billet. Chambers are located adjacent the forging means to preheat one billet while another billet is being forged and also to insert and remove a billet without losing much of the heat or forging atmosphere.
Inventors
- 👤 Joseph B Moore
- 👤 Roy L Athey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:20
CPC Classifications
B; B21; B21K; B21K29/00; B21J; B21J1/00; B21J1/06; B21J9/00; B21J9/02; B21J9/06; B21J9/08
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
146 words
An apparatus for forging having a stationary bed and having ram thereover, a lower die connected to said bed, an upper die connected to said ram for engaging said lower die, means for moving said ram, heating means for heating said dies during the forging operation, closure means extending around the mating surfaces of said dies and the adjacent portions of the dies, said closure means being formed in two parts, one part of said closure means being slidably mounted around said lower die, the other part of said closure means being slidably mounted around said upper die, means for moving said closure parts up and down to have accessibility to the dies, a knock-out pin movable in said lower die for removing a forged part therefrom, said moving means having means for repositioning the closure members at a predetermined location as the forging operation progresses.
Claim 2
Independent Claim
146 words
An apparatus for forging having a stationary bed and having ram thereover, a lower die connected to said bed, an upper die connected to said ram for engaging said lower die, means for moving said ram, heating means for heating said dies during the forging operation, closure means extending around the mating surfaces of said dies and the adjacent portions of the dies, said closure means being formed in two parts, one part of said closure means being slidably mounted around said lower die, the other part of said closure means being slidably mounted around said upper die, means for moving said closure parts up and down to have accessibility to the dies, a knock-out pin movable in said lower die for removing a forged part therefrom, said moving means having means for repositioning the closure members at a predetermined location as the forging operation progresses.
Claim 3
Dependent Claim
39 words
An apparatus as set forth in claim 1 wherein said heating means is formed in two parts, one part being mounted for movement around said lower die, and the other part being mounted for movement around said upper die.
Claim 4
Dependent Claim
42 words
An apparatus as set forth in claim 2 wherein the two parts of said heating means are movable towards each other so that their adjacent ends abut at approximately the center of the opposing die faces held apart by a billet therein.
Claim 5
Dependent Claim
40 words
An apparatus as set forth in claim 3 wherein means are provided to maintain the mating ends of the heating means at approximately the center of the space between the die faces as they move together during a forging operation.
Claim 6
Independent Claim
253 words
An apparatus for forging having a stationary bed and movable ram thereover; a lower die connected to said bed; an upper die connected to said ram for engaging said lower die; means for moving said ram; first closure means extending around said upper and lower dies; said ram being movable within said first closure means; heating means for heating said dies during the forging operation; second closure means fixed to and extending outwardly from one side of said first closure means; third closure means fixed to and extending outwardly from the opposite side of said first closure means; first door means located between said first closure means and said second closure means; second door means located between said third closure means and said first closure means; said second closure means having third door means which opens to the exterior of said second closure means; said third closure means having fourth door means which opens to the exterior of said third closure means; track means extending through said second closure means, first closure means, and third closure means; first carrier means movable along said track means for moving an object to be forged from said second closure means to said first closure means; and second carrier means for moving a forged object from said first closure means to said third closure means; means for removing an object to be forged from said first carrier means for engagement by said lower and upper dies and for placing a forged object on said second carrier means.
Claim 7
Independent Claim
253 words
An apparatus for forging having a stationary bed and movable ram thereover; a lower die connected to said bed; an upper die connected to said ram for engaging said lower die; means for moving said ram; first closure means extending around said upper and lower dies; said ram being movable within said first closure means; heating means for heating said dies during the forging operation; second closure means fixed to and extending outwardly from one side of said first closure means; third closure means fixed to and extending outwardly from the opposite side of said first closure means; first door means located between said first closure means and said second closure means; second door means located between said third closure means and said first closure means; said second closure means having third door means which opens to the exterior of said second closure means; said third closure means having fourth door means which opens to the exterior of said third closure means; track means extending through said second closure means, first closure means, and third closure means; first carrier means movable along said track means for moving an object to be forged from said second closure means to said first closure means; and second carrier means for moving a forged object from said first closure means to said third closure means; means for removing an object to be forged from said first carrier means for engagement by said lower and upper dies and for placing a forged object on said second carrier means.
Claim 8
Dependent Claim
39 words
An apparatus as set forth in claim 5 wherein said heating means is formed in two parts, one part being mounted for movement around said lower die and the other part being mounted for movement around said upper die.
Claim 9
Dependent Claim
22 words
An apparatus as set forth in claim 5 wherein said last named means is a knock-out pin movable in said lower die.
Claim 10
Dependent Claim
23 words
An apparatus as set forth in clAim 5 wherein said second closure member has heating means for heating an object to be forged.
Claim 11
Dependent Claim
40 words
An apparatus as set forth in claim 5 wherein means are provided to place said first, second, and third closure means under an inert gas pressure; means for purging said first closure member, second closure member, and third closure member.
Claim 12
Dependent Claim
28 words
An apparatus as set forth in claim 5 wherein said first, second, third, and fourth door means are located in line with the center of said lower die.
Claim 13
Dependent Claim
53 words
An apparatus as set forth in claim 7 wherein said first carrier means has a groove therein for permitting said knock-out pin to extend therethrough to lift an object to be forged off of said first carrier means; said groove permitting the first carrier means to be withdrawn from said first closure means.
Claim 14
Dependent Claim
51 words
An apparatus as set forth in claim 7 wherein said second carrier means has a groove therein for permitting said knock-out pin to extend therethrough to lift a forged object off of said second carrier means; said groove permitting the second carrier means to be withdrawn from said first closure means.
Claim 15
Dependent Claim
41 words
An apparatus as set forth in claim 11 wherein said first carrier means includes means for positioning said first carrier means precisely over said knock-out pin so that it can extend through said groove directly beneath the object to be forged.
Claim 16
Dependent Claim
49 words
An apparatus as set forth in claim 5 wherein said first door means and said second door means are sliding doors which move upwardly to connect the respective closure means; means for actuating said doors to provide a minimum loss of heat and atmosphere from the first closure means.
Claim 17
Dependent Claim
28 words
An apparatus as set forth in claim 5 wherein said ram slidably engages said first closure means; seal means located between said ram and said first closure means.
Claim 18
Dependent Claim
34 words
An apparatus as set forth in claim 14 wherein means for actuating said first door means and means for actuating said second door means are connected to the exterior of the first closure means.
Claim 19
Dependent Claim
24 words
An apparatus as set forth in claim 5 wherein means are provided to place said first, second, and third closure means under a vacuum.
References Cited (Backward Citations)
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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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |