US4125147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for continuously maintaining a radiator free of debris
Assignee: Caterpillar Inc
•
Filing: 1977-06-13
•
Granted: 1978-11-14
•
Expires: 1997-06-13
Abstract
Abstract A method for continuously maintaining a radiator free of debris comprises steps of rotating an endless and perforated belt about the radiator and simultaneously twisting the belt 180° during each rotation thereof to form a "mobius strip" whereby the front and back sides of the radiator are each exposed to both sides of the belt during rotation thereof.
Inventors
- 👤 John M. Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:35
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/06; B; B60; B60K; B60K11/00; B60K11/02; B60K11/04; F28; F28F; F28F19/00; F28F19/01; F01P11/12; F01P2011/063
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
The method for continuously maintaining a radiator free of debris and the like during operation thereof comprising the steps of rotating a plurality of horizontally disposed and vertically spaced endless and perforated belts about said radiator and on spaced-apart, parallel and vertically disposed axes, and simultaneously twisting each belt one-half a turn during each rotation of said belt to form a "mobius strip" therewith whereby each front and back side of said radiator is exposed to both sides of said belt during each rotation thereof about said radiator.
Claim 2
Independent Claim
88 words
The method for continuously maintaining a radiator free of debris and the like during operation thereof comprising the steps of rotating a plurality of horizontally disposed and vertically spaced endless and perforated belts about said radiator and on spaced-apart, parallel and vertically disposed axes, and simultaneously twisting each belt one-half a turn during each rotation of said belt to form a "mobius strip" therewith whereby each front and back side of said radiator is exposed to both sides of said belt during each rotation thereof about said radiator.
Claim 3
Dependent Claim
37 words
The method of claim 1 wherein said twisting step occurs on the front side of said radiator and further comprising the step of blowing air through said belt and through said radiator from the back side thereof.
Claim 4
Dependent Claim
29 words
The method of claim 1 further comprising the step of guiding said belt at each of the ends, back side and front side of said radiator during rotation thereof.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein said rotating step comprises engaging said belt with a rotating sprocket.
References Cited (Backward Citations)
US736596A
Cited
US3302795A
Cited
US3309847A
Cited
US3337898A
Cited
US3344854A
Cited
US3552098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-13 | 1982-05-15 | 1982-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-13 | 1986-05-15 | 1986-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-13 | 1990-05-15 | 1990-11-14 | $7700.00 | Window Closed / Lapsed |