US3557807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cleaning ball bearings
Assignee: Motors Liquidation Co
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Filing: 1969-08-01
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Granted: 1971-01-26
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Expires: 1989-08-01
Abstract
Abstract A method for cleaning a ball bearing assembly that provides for placing the assembly in a bath of cleaning liquid subjected to ultrasonic vibrations and moving the bearing assembly as a unit to different positions in the bath while rotating one of the races.
Inventors
- 👤 Robert N Schipke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:26
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12; F; F16; F16C; F16C19/00; F16C2235/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A method of cleaning a ball bearing assembly having an inner race and an outer race and balls therebetween, comprising the steps of supporting the outer race on at least three relatively thin upstanding blades which cooperatively establish a seat for said outer race, placiNg the bearing assembly in a bath of cleaning liquid, reciprocating said bearing assembly in said liquid along the rotational axis of said bearing assembly, concurrently rotating the inner race of said bearing assembly relative to the supported outer race and subjecting said cleaning liquid to ultrasonic vibrations in a range between 20,000 and 100,000 cycles per second so as to dislodge foreign matter and dirt adhering to said bearing assembly.
Claim 2
Independent Claim
135 words
A method of cleaning a ball bearing assembly having an inner race and an outer race and balls therebetween, comprising the steps of supporting the outer race on at least three relatively thin upstanding blades which cooperatively establish a seat for said outer race, placing the bearing assembly in a bath of cleaning liquid, reciprocating said bearing assembly in said liquid along the rotational axis of said bearing assembly, concurrently rotating the inner race about said axis and exerting a force on the outer race that causes the latter to maintain a stationary position on said blades while the inner race is being rotated, and subjecting said cleaning liquid to ultrasonic vibrations in a range between 20,000 and 100,00 cycles per second so as to dislodge foreign matter and dirt adhering to said bearing assembly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |