US3867093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat treating apparatus
Assignee: Federal Mogul Bremsbelag GmbH
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Filing: 1973-10-01
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Granted: 1975-02-18
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Expires: 1993-10-01
Abstract
Abstract An apparatus for simultaneously treating platelike workpieces with heat and pressure comprises a hearth in which a table means and a cover member define a chamber provided with heating means. The hearth is equipped with means for generating a ram pressure and besides with special means for ensuring that workpieces put on the table means and forming thereon stacks of different heights will be affected by substantially equal ram pressure acting from below of the movably mounted table means.
Inventors
- 👤 Bernhard Huttermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:29
CPC Classifications
F; F16; F16D; F16D69/00; B; B22; B22F; B22F3/00; B22F3/003; B22F3/12; B22F3/14; C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/663; F16D69/04; F16D2069/0425; F16D2069/045; F16D2069/0458; F16D2069/0491
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
An apparatus for simultaneously treating substantially plateshaped workpieces with heat and pressure comprising: a hearth having surface means for the reception of workpieces to be treated, and cover means defining together with said surface means a treatment chamber; said cover means having a portion extending substantially in parallel to, but spaced apart from said surface means; heat generating means within said chamber; ram means in cooperating relation with said surface means for moving said surface means under pressure in a direction towards said portion of said cover means and into said chamber to press the workpieces thereon against said cover means; said surface means comprising a plurality of component surfaces and said ram means having an equal plurality of ram members; each of said component surfaces being mounted in said hearth for independent movement by an associated one of said ram members; and coupling means for releasably interconnecting at least two component surfaces of said plurality of component surfaces, said interconnected component surfaces being uniformly movable by their associated members.
Claim 2
Independent Claim
170 words
An apparatus for simultaneously treating substantially plateshaped workpieces with heat and pressure comprising: a hearth having surface means for the reception of workpieces to be treated, and cover means defining together with said surface means a treatment chamber; said cover means having a portion extending substantially in parallel to, but spaced apart from said surface means; heat generating means within said chamber; ram means in cooperating relation with said surface means for moving said surface means under pressure in a direction towards said portion of said cover means and into said chamber to press the workpieces thereon against said cover means; said surface means comprising a plurality of component surfaces and said ram means having an equal plurality of ram members; each of said component surfaces being mounted in said hearth for independent movement by an associated one of said ram members; and coupling means for releasably interconnecting at least two component surfaces of said plurality of component surfaces, said interconnected component surfaces being uniformly movable by their associated members.
Claim 3
Dependent Claim
46 words
An apparatus according to claim 1, characterized in that said component surfaces are separated the one form the other by small gaps, and in that said coupling means is a plate having fins which exactly fit into the gaps between said component surfaces to be coupled.
Claim 4
Dependent Claim
38 words
An apparatus according to claim 1, characterized in that said component surfaces define means for receiving portions of said coupling means and in that said coupling means is a plate having portions received by said means for receiving.
Claim 5
Dependent Claim
178 words
In an apparatus for simultaneously treating substantially plate-shaped workpieces with heat and pressure having a hearth having surface means for the reception of workpieces to be treated and cover means defining together with said surface means a treatment chamber, said cover means having a portion extending substantially in parallel to, but spaced apart from said surface means; heat generating means within said chamber; ram means in cooperating relation with said surface means for moving said surface means under pressure in a direction toward said portion of said cover means into said chamber to press the workpieces thereon against said cover means, the improvement comprising: a plurality of separate component surfaces comprising said surface means, a plurality of ram members comprising said ram means, each of said component surfaces being mounted in said hearth for independent movement by an associated one of said ram members, and said cover means including packing means, located above at least one of said component surfaces, for reducing the dimension of the treatment chamber in the direction of the movement of said surface means.
Claim 6
Dependent Claim
178 words
In an apparatus for simultaneously treating substantially plate-shaped workpieces with heat and pressure having a hearth having surface means for the reception of workpieces to be treated and cover means defining together with said surface means a treatment chamber, said cover means having a portion extending substantially in parallel to, but spaced apart from said surface means; heat generating means within said chamber; ram means in cooperating relation with said surface means for moving said surface means under pressure in a direction toward said portion of said cover means into said chamber to press the workpieces thereon against said cover means, the improvement comprising: a plurality of separate component surfaces comprising said surface means, a plurality of ram members comprising said ram means, each of said component surfaces being mounted in said hearth for independent movement by an associated one of said ram members, and said cover means including packing means, located above at least one of said component surfaces, for reducing the dimension of the treatment chamber in the direction of the movement of said surface means.
Claim 7
Dependent Claim
23 words
An apparatus according to claim 4, characterized in that each of said component surfaces is larger than the bottom surface of each workpiece.
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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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |