US3793867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously quenching a heated metal plate
Assignee: Drever Co
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Filing: 1972-06-01
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Granted: 1974-02-26
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Expires: 1992-06-01
Abstract
Abstract An apparatus for continuously quenching a heated metal plate moving and restrained in a plane. A pair of quench headers are positioned above and below the plate each having a slot through which quench fluid is directed at an angle in the direction of plate movement. Beyond the impingement of the quench fluid on the plate are a pair of sral grooved rollers positioned and spaced apart engaging the top and bottom surfaces of the metal plate.
Inventors
- 👤 F Safford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:07
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/62; C21D1/667; B; B21; B21B; B21B45/00; B21B45/02; B21B45/0203; B21B45/0209; B21B45/0215; B21B45/0218
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
136 words
Apparatus for continuously quenching a heated metal plate moving and restrained in a plane, the improvement comprising: a. header means for impinging a continuous curtain of quench fluid on the top and bottom surfaces of the metal plate, the curtain of quench fluid being applied in the direction of movement of and at an acute angle with respect to the metal plate; and b. a pair of parallel spirally grooved rollers positioned and spaced apart to engage the top anD bottom surfaces of the metal plate, the rollers being positioned downstream with respect to the line of impingement of the quench fluid in the direction of movement of the metal plate, and effective to distribute the quenching fluid uniformly and evenly over top and bottom surfaces of the moving plate as it moves past said rollers.
Claim 2
Dependent Claim
136 words
Apparatus for continuously quenching a heated metal plate moving and restrained in a plane, the improvement comprising: a. header means for impinging a continuous curtain of quench fluid on the top and bottom surfaces of the metal plate, the curtain of quench fluid being applied in the direction of movement of and at an acute angle with respect to the metal plate; and b. a pair of parallel spirally grooved rollers positioned and spaced apart to engage the top anD bottom surfaces of the metal plate, the rollers being positioned downstream with respect to the line of impingement of the quench fluid in the direction of movement of the metal plate, and effective to distribute the quenching fluid uniformly and evenly over top and bottom surfaces of the moving plate as it moves past said rollers.
Claim 3
Dependent Claim
34 words
Apparatus as recited in claim 1 wherein the spirally grooved rollers have grooves formed by tapered rib walls which slope inwardly as the height of the walls approaches the outer surface of the roller.
Claim 4
Dependent Claim
104 words
Apparatus as recited in claim 1 wherein each of said header means is formed by a hinged gate member releasably fixed in a converging position with respect to a rigid back member to form therewith a longitudinal slit across the path of the plate travel, the slit being oriented to direct the curtain of quench fluid in the direction of travel of the metal plate and at an angle of 10* to 40* thereto, the gate member being adjustable in length to vary the width of the opening of the slit, and conduit means supplying pressurized quench fluid to each of said header means.
Claim 5
Dependent Claim
72 words
Apparatus as recited in claim 1 wherein each of the spirally grooved rollers comprises a shaft and a plurality of discrete spirally grooved cylindrical segments which are mounted in spaced relation along said shaft, the segments to one side of the longitudinal center of each roller having grooves spiraled in one direction and those on the opposite side of the longitudinal center of the roller having grooves spiraled in the opposite direction.
Claim 6
Dependent Claim
130 words
Apparatus as recited in claim 1 wherein each of said header means is formed by a gate member having a pivot connection at one end to a rigid back member and converging with the rigid back member at an end opposite the pivot connection to form with the back member a longitudinal slit across the path of the plate travel, the slit being oriented to direct the curtain of quench fluid in the direction of travel of the metal plate, and means for holding the gate in a fixed position and for moving it pivotally toward and away from the rigid back member to vary the width of the opening of the slit to enable accumulated obstructions therein to be flushed out by pressurized fluid supplied to the header means.
Claim 7
Dependent Claim
49 words
Apparatus as recited in claim 2 wherein the tapered rib walls of the spirally grooved rollers extend in opposite directions from the center of the roller toward each end, the oppositely extending sections of said tapered rib walls meeting in end-to-end abutting relation at the center of the roller.
Claim 8
Dependent Claim
114 words
Apparatus as recited in claim 5 wherein the rigid back member is U-shaped in cross-section and wherein the means for moving the gate member pivotally toward and away from the rigid U-shaped back member comprises a rod connecting the rigid U-shaped back member and the gate member, the rod extending through an opening in the gate member and having threads on the end of which a corresponding nut is screwed which when turned in one direction allows the gate member to be pivoted away from the U-shaped back member by the pressurized fluid within the header means and which when turned in the opposite direction moves the gate member toward the U-shaped back member.
Claim 9
Dependent Claim
41 words
Apparatus as recited in claim 7 wherein a resilient biasing means is inserted on the rod between the gate member and the nut for yieldingly holding the gate member in position against the force of pressurized fluid within the header means.
Claim 10
Dependent Claim
87 words
Apparatus as recited in claim 1 wherein each of said header means is formed by a hinged gate member releasably fixed in a converging position with respect to a rigid back member to form therewith a longitudinal slit acorss the path of the plate travel, the slit being oriented to direct the curtain of quench fluid in the direction of travel of the metal plate and at an angle of 10* to 40* thereto, and conduit means supplying pressurized quench fluid to each of said header means.
References Cited (Backward Citations)
US1975708A
Cited
US2176835A
Cited
US2570470A
Cited
US2921748A
Cited
US2890975A
Cited
US3546911A
Cited
US3354867A
Cited
US3420083A
Cited
US3554513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |