US3170975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quenching machine
Assignee: Gleason Works
•
Filing: 1960-06-30
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Granted: 1965-02-23
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Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Oliver F Bauer
- 👤 Alvin W Snook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:16
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/62; C21D1/673; C21D9/00; C21D9/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A QUENCHING MACHINE FOR GEARS AND LIKE WORKPIECES, HAVING A CHAMBER FOR INITIAL QUENCHING, UPPER AND LOWER DIES ARRANGED TO HOLD A WORKPIECE IN SAID CHAMBER DURING SUCH INITIAL QUENCHING, MEANS FOR CIRCULATING COOLANT LIQUID AROUND A WORKPIECE HELD BY THE DIES FOR EFFECTING SUCH INITIAL QUENCHING AND PROVIDING LIQUID TO SAID CHAMBER TO A LEVEL ABOVE A WORKPIECE THEREIN , A TANK FOR THE FURTHER COOLING OF WORKPIECES AND ADAPTED TO CONTAIN COOLANT LIQUID TO A LEVEL LOWER THAN THE BOTTOM OF SAID CHAMBER, THE BOTTOM WALL OF SAID CHAMBER HAVING A DISCHARGE ORIFICE TO SAID TANK, A CLOSURE FOR SAID ORIFICE AND ACTUATING MEANS THEREFOR, AND TRANSFER MEANS FOR MOVING A WORKPIECE BENEATH THE LEVEL OF LIQUID IN THE CONTAINER FROM THE DIES TO A POSITION ABOVE SAID CLOSURE, SAID ORIFICE AND CLOSURE BEING SO ARRANGED THAT UPON OPENING OF THE LATTER BY SAID ACTUATING MEANS THE WORKPIECE AND THE BODY OF LIQUID IN WHICH IT IS IMMERSED IN THE CONTAINER MAY TOGETHER PASS THROUGH THE ORIFICE TO THE TANK.
Claim 2
Dependent Claim
172 words
A QUENCHING MACHINE FOR GEARS AND LIKE WORKPIECES, HAVING A CHAMBER FOR INITIAL QUENCHING, UPPER AND LOWER DIES ARRANGED TO HOLD A WORKPIECE IN SAID CHAMBER DURING SUCH INITIAL QUENCHING, MEANS FOR CIRCULATING COOLANT LIQUID AROUND A WORKPIECE HELD BY THE DIES FOR EFFECTING SUCH INITIAL QUENCHING AND PROVIDING LIQUID TO SAID CHAMBER TO A LEVEL ABOVE A WORKPIECE THEREIN , A TANK FOR THE FURTHER COOLING OF WORKPIECES AND ADAPTED TO CONTAIN COOLANT LIQUID TO A LEVEL LOWER THAN THE BOTTOM OF SAID CHAMBER, THE BOTTOM WALL OF SAID CHAMBER HAVING A DISCHARGE ORIFICE TO SAID TANK, A CLOSURE FOR SAID ORIFICE AND ACTUATING MEANS THEREFOR, AND TRANSFER MEANS FOR MOVING A WORKPIECE BENEATH THE LEVEL OF LIQUID IN THE CONTAINER FROM THE DIES TO A POSITION ABOVE SAID CLOSURE, SAID ORIFICE AND CLOSURE BEING SO ARRANGED THAT UPON OPENING OF THE LATTER BY SAID ACTUATING MEANS THE WORKPIECE AND THE BODY OF LIQUID IN WHICH IT IS IMMERSED IN THE CONTAINER MAY TOGETHER PASS THROUGH THE ORIFICE TO THE TANK.
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |