Patent US3252020A successfully refreshed from Google Patents.
US3252020A
Expired / Lapsed
US
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Cooling means for bearing assemblies
Assignee: Skil Corp
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Filing: 1963-12-23
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Granted: 1966-05-17
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Frank J Consoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:36
CPC Classifications
B; B25; B25F; B25F5/00; B25F5/008; F; F16; F16C; F16C37/00; F16C37/007; H; H02; H02K; H02K9/00; H02K9/22; H02K9/227; F16C2380/00; F16C2380/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A POWER TOOL OF THE TYPE CHARACTERIZED BY A HOUSING FORMED OF A MATERIAL HAVING POOR HEAT CONDUCTING PROPERTIES, WHICH HOUSING ENCLOSES A ROTARY MOTOR HAVING ITS ROTARY MEMBER JOURNALLED AT ONE END THEREOF IN A BEARING ASSEMBLY WHICH IS SUPPORTED IN A WALL OF THE HOUSING, WHEREIN SAID WALL IS PROVIDED WITH VENT OPENINGS ADJACENT SAID BEARING ASSEMBLY, THE IMPROVEMENT WHICH COMPRISES, METALLIC HEAT DISSIPATING MEANS DISPOSED ADJACENT SAID WALL AND DIRECTLY CONNECTED TO SAID BEARING ASSEMBLY, SAID HEAT DISSIPATING MEANS HAVING AT LEAST A PORTION THEREOF IN ALIGNMENT WITH CERTAIN OF SAID VENT OPENINGS FOR BEING COOLED BY THE AIR WHICH PASSES THROUGH THE LATTER THEREBY TO COOL SAID BEARING ASSEMBLY DURING OPERATION OF SAID MOTOR.
Claim 2
Dependent Claim
119 words
IN A POWER TOOL OF THE TYPE CHARACTERIZED BY A HOUSING FORMED OF A MATERIAL HAVING POOR HEAT CONDUCTING PROPERTIES, WHICH HOUSING ENCLOSES A ROTARY MOTOR HAVING ITS ROTARY MEMBER JOURNALLED AT ONE END THEREOF IN A BEARING ASSEMBLY WHICH IS SUPPORTED IN A WALL OF THE HOUSING, WHEREIN SAID WALL IS PROVIDED WITH VENT OPENINGS ADJACENT SAID BEARING ASSEMBLY, THE IMPROVEMENT WHICH COMPRISES, METALLIC HEAT DISSIPATING MEANS DISPOSED ADJACENT SAID WALL AND DIRECTLY CONNECTED TO SAID BEARING ASSEMBLY, SAID HEAT DISSIPATING MEANS HAVING AT LEAST A PORTION THEREOF IN ALIGNMENT WITH CERTAIN OF SAID VENT OPENINGS FOR BEING COOLED BY THE AIR WHICH PASSES THROUGH THE LATTER THEREBY TO COOL SAID BEARING ASSEMBLY DURING OPERATION OF SAID MOTOR.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |