Patent US2465661A successfully refreshed from Google Patents.
US3603498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet metal welding machine
Assignee: Rio Tinto Alcan International Ltd
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Filing: 1968-06-13
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Granted: 1971-09-07
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Expires: 1988-06-13
Abstract
Abstract A heated fusion-bonding sheet metal press having a pair of stationary C-shaped metal frames arranged parallel to one another. Disposed between the two frames is a movable second Cshaped metal frame. Die holders associated with the stationary frames and movable frame are mounted for vertical movement. Heating means associated with the die holders raise the temperature of the sheet metal to below its fusion temperature.
Inventors
- 👤 Lloyd A Cook
- 👤 Lewis W Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:56
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/04; B23K11/046; B23K11/16; B23K11/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
A press for joining two sections of metal comprising: a. at least one pair of stationary C-shaped metal plate frames, b. the members of each pair of stationary C-shaped metal plate frames being arranged parallel to each other in a spaced-apart manner, c. a laterally movable C-shaped metal frame mounted between each pair of stationary C-shaped metal plate frames, d. a first pair of die holders associated with each pair of stationary C-shaped metal plate frames, said die holders being mounted for movement in a vertical direction, e. a second pair of die holders associated with said laterally movable C-shaped metal frame, said die holders being mounted for movement in a vertical direction, f. said die holders being associated with means to heat the material being worked onto a maximum temperature below the fusion temperature of the metal sections to be joined.
Claim 2
Dependent Claim
142 words
A press for joining two sections of metal comprising: a. at least one pair of stationary C-shaped metal plate frames, b. the members of each pair of stationary C-shaped metal plate frames being arranged parallel to each other in a spaced-apart manner, c. a laterally movable C-shaped metal frame mounted between each pair of stationary C-shaped metal plate frames, d. a first pair of die holders associated with each pair of stationary C-shaped metal plate frames, said die holders being mounted for movement in a vertical direction, e. a second pair of die holders associated with said laterally movable C-shaped metal frame, said die holders being mounted for movement in a vertical direction, f. said die holders being associated with means to heat the material being worked onto a maximum temperature below the fusion temperature of the metal sections to be joined.
Claim 3
Dependent Claim
20 words
A press according to claim 1 wherein said stationary C-shaped metal plate frames are spaced apart with bolts and spacers.
Claim 4
Dependent Claim
46 words
A press according to claim 1 wherein a surface is positioned immediately below each laterally movable C-shaped metal frame which surface connects said stationary C-shaped metal plaTe frame so that the movable C-shaped metal frame can slide laterally in relation to said stationary C-shaped metal plate.
Claim 5
Dependent Claim
22 words
A press according to claim 1 wherein there are a plurality of pairs of stationary C-frames arranged in a parallel side-by-side relationship.
References Cited (Backward Citations)
US2896483A
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US2817254A
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US2891430A
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US2927487A
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US3093018A
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US3072778A
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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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |