Patent US3604696A successfully refreshed from Google Patents.
US3604696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous quench apparatus
Assignee: Van Dorn Co
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Filing: 1968-12-10
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Granted: 1971-09-14
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Expires: 1988-12-10
Abstract
Abstract Apparatus for continuously and progressively quenching elongated flat steel members comprising a plurality of pairs of continuous cylindrical rolls, each roll pair being closely spaced from a successive roll pair and comprising an upper roll aligned and parallel with a lower roll, the nips of the roll pairs lying in the same plane. A plurality of upper and lower jet quench means are positioned between successive rolls, above and below said plane, the apparatus including means to support the rolls so that they apply a pressure on the steel member being quenched along continuous lines of contact across the member. Passageway means are provided in the rolls for a cooling fluid to cool the rolls, the rolls thereby providing an additional cooling action along said lines of contact of the rolls with the member so that the quenching is uninterrupted, uniform and complete.
Inventors
- 👤 Vincent R Coleman
- 👤 Perry J Murphy Jr
- 👤 Victor N Lockhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:06
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/02; B21B45/0203; B21B45/0209; B21B45/0215; B21B45/0218; C; C21; C21D; C21D1/00; C21D1/62; C21D1/667; B21B27/00; B21B27/06; B21B27/08; B21B2027/083; B21B39/00; B21B39/006; B21B39/02; B21B39/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
288 words
A device for quenching an elongated flat strip comprising; a bottom roll set including a plurality of horizontally spaced rolls of substantially the same diameter, an upper roll set including a plurality of horizontally spaced rolls of substantially the same diameter and of substantially the same diameter as said rolls in said bottom roll set, each said roll in said upper roll set being vertically aligned and parallel with a corresponding roll in said bottom roll set, drive means for driving each roll in one of said roll sets at substantially the same speed in a predetermined direction to move a strip in a predetermined direction through said bottom and upper roll sets, each roll in the other of said roll sets being nondriven and mounted for independent rotation, each said roll in the other of said roll sets being individually mounted for movement toward and away from a corresponding roll in said one roll set, biasing means for independently biasing each roll in said other roll set toward said rolls in said one roll set, and quenching means for quenching a strip moving through said roll sets, said quenching means including a first quench means for supplying quenchant at high pressure and low volume to quench a strip moving through said roll sets at a first relatively slow quench rate, said quenching means including a second quench means spaced from said first quench means in said predetermined direction of travel of a strip through said roll sets for supplying quenchant at a substantially lower pressure and a substantially higher volume than said first quench means to quench a strip moving through said roll sets at a second relatively high quench rate substantially higher than said first rate.
Claim 2
Independent Claim
288 words
A device for quenching an elongated flat strip comprising; a bottom roll set including a plurality of horizontally spaced rolls of substantially the same diameter, an upper roll set including a plurality of horizontally spaced rolls of substantially the same diameter and of substantially the same diameter as said rolls in said bottom roll set, each said roll in said upper roll set being vertically aligned and parallel with a corresponding roll in said bottom roll set, drive means for driving each roll in one of said roll sets at substantially the same speed in a predetermined direction to move a strip in a predetermined direction through said bottom and upper roll sets, each roll in the other of said roll sets being nondriven and mounted for independent rotation, each said roll in the other of said roll sets being individually mounted for movement toward and away from a corresponding roll in said one roll set, biasing means for independently biasing each roll in said other roll set toward said rolls in said one roll set, and quenching means for quenching a strip moving through said roll sets, said quenching means including a first quench means for supplying quenchant at high pressure and low volume to quench a strip moving through said roll sets at a first relatively slow quench rate, said quenching means including a second quench means spaced from said first quench means in said predetermined direction of travel of a strip through said roll sets for supplying quenchant at a substantially lower pressure and a substantially higher volume than said first quench means to quench a strip moving through said roll sets at a second relatively high quench rate substantially higher than said first rate.
Claim 3
Dependent Claim
80 words
The device of claim 1 and further including a plurality of horizontally spaced backup rolls for said rolls in said other roll set, each of said backup rolls being positioned intermediate and contacting a pair of rolls in said other roll set, said backup rolls being movable toward and away from said rolls in said other roll set, and said biasing means acting on said backup rolls for biasing said backup rolls toward said rolls in said other roll set.
Claim 4
Dependent Claim
15 words
The device of claim 1 wherein said one roll set comprises said bottom roll set.
References Cited (Backward Citations)
US2056433A
Cited
US2236213A
Cited
US3300198A
Cited
US3423254A
Cited
US3428023A
Cited
US3367804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |