Patent US4014286A successfully refreshed from Google Patents.
US4014286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot product marking system
Assignee: Individual
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Filing: 1975-04-25
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Granted: 1977-03-29
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Expires: 1995-04-25
Abstract
Abstract An apparatus for depositing an adherent thermoplastic or thermo-settable powdered marking material on hot products, such as hot steel during the rolling process for identification purposes. The system includes one or more fixed spray guns disposed adjacent to the product flow path from a previous processing operation, such as a rolling mill, for depositing marking powder from a supply source as the product passes. Manually operated or automatic sensing devices trigger the operation of the marking device. An exhaust system removes excess marking powder from the application area for reclaiming.
Inventors
- 👤 Donald E. De Zurik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:51
CPC Classifications
B; B21; B21C; B21C51/00; B21C51/005; B05; B05B; B05B14/00; B05B14/10; B05B12/00; B05B12/08; B05B12/12; B05B12/122; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
88 words
An apparatus for marking hot elongated longitudinally traversing rolled metal products of varying sizes for identification as said products emerge from a previous hot processing operation, said apparatus comprising: A. a marking station immediately adjacent to the flow path of hot metal traveling from a previous hot processing operation, said marking station being disposed downstream from said previous operation and including: 1. wall means partially enclosing the sides of said flow path, the resulting partial enclosure being open at the ends and substantially unobstructed at the top, 2.
Claim 2
Independent Claim
88 words
An apparatus for marking hot elongated longitudinally traversing rolled metal products of varying sizes for identification as said products emerge from a previous hot processing operation, said apparatus comprising: A. a marking station immediately adjacent to the flow path of hot metal traveling from a previous hot processing operation, said marking station being disposed downstream from said previous operation and including: 1. wall means partially enclosing the sides of said flow path, the resulting partial enclosure being open at the ends and substantially unobstructed at the top, 2.
Claim 3
Dependent Claim
122 words
spray means directed through said wall means at said flow path, and 3. an exhaust duct through said wall means, B. a supply vessel adapted to contain a quantity of thermo-sensitive powdered marking material, said vessel including powder propelling means, C. means for connecting said propelling means to a source of gas under pressure, D. means for connecting said spray means to said supply vessel, E. suction means for withdrawing excess marking material connected to said exhaust duct, and F. sensor actuated automatic control means to operate said spray means and exhaust means upon demand, including sensor means disposed adjacent to said flow path upstream from said marking station and operatively connected to control means to intermittently operate said spray means and
Claim 4
Dependent Claim
122 words
spray means directed through said wall means at said flow path, and 3. an exhaust duct through said wall means, B. a supply vessel adapted to contain a quantity of thermo-sensitive powdered marking material, said vessel including powder propelling means, C. means for connecting said propelling means to a source of gas under pressure, D. means for connecting said spray means to said supply vessel, E. suction means for withdrawing excess marking material connected to said exhaust duct, and F. sensor actuated automatic control means to operate said spray means and exhaust means upon demand, including sensor means disposed adjacent to said flow path upstream from said marking station and operatively connected to control means to intermittently operate said spray means and
Claim 5
Dependent Claim
73 words
suction means. 2. Apparatus according to claim 1 further characterized in that: A. said marking station comprises a pair of parallel vertical plates closely spaced apart on opposite sides of said flow path, B. at least one of said plates has an aperture therein, C. said spray means is positioned to spray through said aperture, and D. said exhaust duct extends through at least one of said plates downstream from said spray means.
Claim 6
Dependent Claim
58 words
Apparatus according to claim 2 further characterized in that: A. said spray means includes a pneumatic spray nozzle spaced outwardly from said aperture, B. reciprocating door means are provided between said aperture and tip of said spray nozzle to close said aperture when the spray means is inoperative, and C. cylinder and piston means to reciprocate said door.
Claim 7
Dependent Claim
45 words
Apparatus according to claim 1 further characterized in that: A. said supply vessel comprises a hopper provided with agitation means and located spaced from said marking station, and B. said supply vessel and spray nozzle are connected by tubing for passage of air and powder.
Claim 8
Dependent Claim
25 words
Apparatus according to claim 1 further characterized in that said suction means comprises an exhaust fan and air-solids separator for recovery of excess marking material.
Claim 9
Dependent Claim
31 words
Apparatus according to claim 1 further characterized in that said control means comprise relay actuated switch means responsive to said sensors to actuate said spray means and suction means on demand.
Claim 10
Dependent Claim
32 words
Apparatus according to claim 1 further characterized in that said marking station includes at least a pair of spray nozzles positioned on and directed toward both opposite sides of said flow path.
Claim 11
Independent Claim
239 words
An apparatus for marking hot elongated longitudinally traversing rolled steel products of varying sizes for identification as said products emerge from the rolling mill, said apparatus comprising: A. a marking station immediately adjacent to the flow path of hot steel traveling from a rolling mill, said marking station being disposed downstream from said rolling mill and including: 1. wall means partially enclosing the sides of said flow path, the resulting partial enclosure being open at the ends and substantially unobstructed at the top, 2. at least one pneumatic spray nozzle directed through said wall means at said flow path, and 3. an exhaust duct through said wall means downstream from said spray nozzle, B. a supply hopper spaced from said marking station adapted to contain a quantity of thermo-sensitive powdered marking material, and including powder propelling means, C. tubular conduit means for connecting said propelling means to a source of gas under pressure, D. tubular conduit means for connecting said spray nozzle to said supply hopper, E. suction means for withdrawing excess marking material comprising: 1. an exhaust fan, 2. an air solids separator for recovery of excess marking material, and 3. tubular conduit means connecting to said exhaust duct, F. sensors disposed adjacent said flow path upstream from said marking station to detect the presence of product therein, and G. automatic control means responsive to said sensors to intermittently actuate said spray means and exhaust means on demand.
Claim 12
Independent Claim
239 words
An apparatus for marking hot elongated longitudinally traversing rolled steel products of varying sizes for identification as said products emerge from the rolling mill, said apparatus comprising: A. a marking station immediately adjacent to the flow path of hot steel traveling from a rolling mill, said marking station being disposed downstream from said rolling mill and including: 1. wall means partially enclosing the sides of said flow path, the resulting partial enclosure being open at the ends and substantially unobstructed at the top, 2. at least one pneumatic spray nozzle directed through said wall means at said flow path, and 3. an exhaust duct through said wall means downstream from said spray nozzle, B. a supply hopper spaced from said marking station adapted to contain a quantity of thermo-sensitive powdered marking material, and including powder propelling means, C. tubular conduit means for connecting said propelling means to a source of gas under pressure, D. tubular conduit means for connecting said spray nozzle to said supply hopper, E. suction means for withdrawing excess marking material comprising: 1. an exhaust fan, 2. an air solids separator for recovery of excess marking material, and 3. tubular conduit means connecting to said exhaust duct, F. sensors disposed adjacent said flow path upstream from said marking station to detect the presence of product therein, and G. automatic control means responsive to said sensors to intermittently actuate said spray means and exhaust means on demand.
Claim 13
Dependent Claim
30 words
Apparatus according to claim 8 further characterized in that said marking station includes a pair of spray nozzles positioned on and directed toward both opposite sides of said flow path.
Claim 14
Dependent Claim
128 words
Apparatus according to claim 8 further characterized in that: A. said marking station includes: 1. at least a pair of parallel vertical plates closely spaced apart on opposite sides of said flow path, 2. an aperture in at least one of said plates, 3. said spray nozzle spaced outwardly from said aperture and directed at said flow path, 4. reciprocating door means between said aperture and tip of said spray nozzle, and 5. said exhaust duct extending through at least one of said plates, B. said reciprocating door means is mounted on the piston of an air cylinder and movable to close said aperture when said spray nozzle is inoperative, C. said air cylinder is actuated with said spray nozzle, and D. said supply hopper includes agitation means.
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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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |