US3236249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaners for air filters
Assignee: EVERROAD SUPPLY CO
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Filing: 1964-09-08
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Granted: 1966-02-22
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Everroad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:00
CPC Classifications
B; B01; B01D; B01D41/00; B01D41/04; B01D27/00; B01D27/04; F; F02; F02M; F02M35/00; F02M35/02; F02M35/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
A DEVICE FOR CLEANING ENGINE AIR FILTERS COMPRISING: AN OUTER OPEN FRAME CONSISTING OF VERTICAL SIDE RODS JOINING AND SUPPORTING AN OPEN BOTTOM MEMBER; AN INNER OPEN FRAME SUPPORTED CONCENTRICALLY WITHIN AND IN SPACED RELATION TO SAID OUTER FRAME, SAID INNER FRAME CONSISTING OF VERTICAL SUSPENSION RODS EXTENDING DOWNWARDLY TO AN OPEN HORIZONTAL PLATFORM FOR SUPPORTING A TUBULAR ENGINE AIR FILTER; A WATER SUPPLY CONDUIT SUPPORTED BY SAID BOTTOM MEMBER AND EXTENDING CONCENTRICALLY UPWARD THEREFROM; A ROTATABLE SWIVEL FITTING MOUNTED ON SAID CONDUIT BELOW SAID PLATFORM; A CROSS FITTING MOUNTED ON SAID SWIVEL FITTING; SPRAY PIPES EXTENDING OPPOSITELY OUTWARD FROM SAID CROSS FITTING AND UPWARDLY BETWEEN SAID OUTER FRAME AND SAID INNER FRAME AT EACH SIDE OF AID INNER FRAME; A PLURALITY OF OUTER SPRAY HEADS MOUNTED ON SAID SPRAY PIPES AND POSITIONED TO DIRECT WATER SPRAYS RADIALLY INWARD AGAINST THE EXTERNAL SURFACE OF AN AIR FILTER RESTING ON SAID PLATFORM; A RISER STANDARD MOUNTED ON SAID CROSS FITTING AND EXTENDING AXIALLY UPWARD THROUGH SAID PLATFORM; AND A PLURALITY OF INNER SPRAY HEADS MOUNTED ON SAID STANDARD AND POSITIONED TO DIRECT WATER SPRAYS RADIALLY OUTWARD AGAINST THE INNER SURFACE OF THE AIR FILTER RESTING ON SAID PLATFORM.
Claim 2
Independent Claim
197 words
A DEVICE FOR CLEANING ENGINE AIR FILTERS COMPRISING: AN OUTER OPEN FRAME CONSISTING OF VERTICAL SIDE RODS JOINING AND SUPPORTING AN OPEN BOTTOM MEMBER; AN INNER OPEN FRAME SUPPORTED CONCENTRICALLY WITHIN AND IN SPACED RELATION TO SAID OUTER FRAME, SAID INNER FRAME CONSISTING OF VERTICAL SUSPENSION RODS EXTENDING DOWNWARDLY TO AN OPEN HORIZONTAL PLATFORM FOR SUPPORTING A TUBULAR ENGINE AIR FILTER; A WATER SUPPLY CONDUIT SUPPORTED BY SAID BOTTOM MEMBER AND EXTENDING CONCENTRICALLY UPWARD THEREFROM; A ROTATABLE SWIVEL FITTING MOUNTED ON SAID CONDUIT BELOW SAID PLATFORM; A CROSS FITTING MOUNTED ON SAID SWIVEL FITTING; SPRAY PIPES EXTENDING OPPOSITELY OUTWARD FROM SAID CROSS FITTING AND UPWARDLY BETWEEN SAID OUTER FRAME AND SAID INNER FRAME AT EACH SIDE OF AID INNER FRAME; A PLURALITY OF OUTER SPRAY HEADS MOUNTED ON SAID SPRAY PIPES AND POSITIONED TO DIRECT WATER SPRAYS RADIALLY INWARD AGAINST THE EXTERNAL SURFACE OF AN AIR FILTER RESTING ON SAID PLATFORM; A RISER STANDARD MOUNTED ON SAID CROSS FITTING AND EXTENDING AXIALLY UPWARD THROUGH SAID PLATFORM; AND A PLURALITY OF INNER SPRAY HEADS MOUNTED ON SAID STANDARD AND POSITIONED TO DIRECT WATER SPRAYS RADIALLY OUTWARD AGAINST THE INNER SURFACE OF THE AIR FILTER RESTING ON SAID PLATFORM.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |