US3650414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control system for a temperature measuring device utilizing an expendable immersion thermocouple unit
Assignee: Osaka Oxygen Industries Ltd
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Filing: 1970-03-26
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Granted: 1972-03-21
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Expires: 1990-03-26
Abstract
Abstract A holder for removably holding a member to be immersed into a molten metal bath in a furnace or a vessel, such as a ladle, is mounted on a fixed frame so as to be moved reciprocally toward and away from the furnace. Along the path of the holder are provided means for supplying said members one by one in the path of the holder, and means which is adapted to automatically mount the member thus supplied onto the holder during the movement of the holder toward the furnace and to automatically dismount the same from the holder during the return stroke of the holder to its original position.
Inventors
- 👤 Yutaka Asada
- 👤 Tatsuichi Obinata
- 👤 Kamematsu Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:46
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/90
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
351 words
A system for automatically positioning generally cylindrical expendable immersion members into a bath, said system comprising: a cylindrical holder having a forward end engageable with one of said immersion members; a stationary frame mounted generally above said bath and having a guide supporting said holder, said frame having means mounted thereon for selectively reciprocating said forward end of said holder along said frame toward said bath into an operative position and away from said bath into a retracted position; means positioned on said frame forward of said forward end of said holder when said holder is in said retracted position for storing a plurality of said immersion members and supplying said immersion members one by one into the path of said holder when said holder is in said retracted position; and clutch means mounted on said guide forward of said storing and supplying means for causing said holder to be engaged with said one immersion member when said holder reciprocates from said retracted position to said operative position and for causing said holder to be disengaged with said one immersion member when said holder reciprocates from said operative position to said retracted position, said clutch means comprising a pair of clutch arms having forward and rearward ends, said clutch arms being pivoted at their forward ends to said guide and extending longitudinally of said guide in opposing manner on opposite sides thereof, spring means biasing said rearward ends of said clutch arms toward said guide and said guide having openings therein, said rearward ends of said clutch arms having bent portion means extending through said openings in said guide for providing a seat for said one immersion member, said bent portion means preventing movement of said one immersion member during engagement of said holder therewith, said bent portion means allowing said one immersion member to pass therethrough and rotate said clutch arms against the bias of said springs during movement of said holder to said operative position, and said bent portion means causing removal of said one immersion member from said holder when said holder reciprocates back to said retracted position.
Claim 2
Independent Claim
351 words
A system for automatically positioning generally cylindrical expendable immersion members into a bath, said system comprising: a cylindrical holder having a forward end engageable with one of said immersion members; a stationary frame mounted generally above said bath and having a guide supporting said holder, said frame having means mounted thereon for selectively reciprocating said forward end of said holder along said frame toward said bath into an operative position and away from said bath into a retracted position; means positioned on said frame forward of said forward end of said holder when said holder is in said retracted position for storing a plurality of said immersion members and supplying said immersion members one by one into the path of said holder when said holder is in said retracted position; and clutch means mounted on said guide forward of said storing and supplying means for causing said holder to be engaged with said one immersion member when said holder reciprocates from said retracted position to said operative position and for causing said holder to be disengaged with said one immersion member when said holder reciprocates from said operative position to said retracted position, said clutch means comprising a pair of clutch arms having forward and rearward ends, said clutch arms being pivoted at their forward ends to said guide and extending longitudinally of said guide in opposing manner on opposite sides thereof, spring means biasing said rearward ends of said clutch arms toward said guide and said guide having openings therein, said rearward ends of said clutch arms having bent portion means extending through said openings in said guide for providing a seat for said one immersion member, said bent portion means preventing movement of said one immersion member during engagement of said holder therewith, said bent portion means allowing said one immersion member to pass therethrough and rotate said clutch arms against the bias of said springs during movement of said holder to said operative position, and said bent portion means causing removal of said one immersion member from said holder when said holder reciprocates back to said retracted position.
Claim 3
Dependent Claim
26 words
A system as claimed in claim 1, wherein said bath is a molten bath in a furnace, and said immersion members are expendable immersion thermocouple units.
Claim 4
Dependent Claim
124 words
A system as claimed in claim 2, wherein said means for storing and supplying comprises an outer rotatable tubular member having a plurality of cells equally spaced around the inner periphery thereof, each of said cells housing one of said thermocouple units, an inner stationary cylindrical member disposed within said outer Rotatable member, said inner member having at its top portion a depression of a size to receive one of said thermocouple units, said depression being longitudinally aligned with the path of reciprocation of said holder, and means for rotating said outer rotatable member by an angle equal to the spacing between said cells upon each reciprocation cycle of said holder, whereby upon reaching said depression said one thermocouple unit falls into said depression.
Claim 5
Dependent Claim
70 words
A system as claimed in claim 2, wherein said means for storing and supplying comprises an elongated box extending perpendicularly upwardly from said frame immediately above and along the path of said holder, the width of said box being such that said thermocouple units are stacked therein one above the other and fall one by one into said path of said holder upon each reciprocation thereof into said retracted position.
References Cited (Backward Citations)
US2560255A
Cited
US3390578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |