US3237769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter apparatus
Assignee: Dana Inc
•
Filing: 1963-02-12
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Granted: 1966-03-01
•
Expires: 1983-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Kingsley E Humbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:59
CPC Classifications
B; B01; B01D; B01D36/00; B01D36/003; B01D35/00; B01D35/30; B01D2201/00; B01D2201/29; B01D2201/291; B01D2201/40; B01D2201/4092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
AN IN-LINE FILTER APPARATUS COMPRISING A BODY HAVING A HEAD PORTION WITH INLET AND OUTLET MEANS THEREIN, A CENTRAL FLANGE EXTENDING FROM THE HEAD PORTION HAVING AN OPENING THEREIN LEADING TO THE OUTLET MEANS, AND AN ELONGATED OUTER WALL EXTENDING FROM THE HEAD PORTION A GREATER EXTENT THAN THE CENTRAL FLANGE AND HAVING A FREE END, A TRANSPARENT SEDIMENT BOWL, THE BOWL BEING TRANSPARENT SUBSTANTIALLY THROUGHOUT THE SURFACE THEREOF, THE BOWL HAVING AN UPPER PORTION, COOPERATING MEANS ON THE INNER SURFACE OF THE FREE END OF THE OUTER WALL AND THE OUTER SURFACE OF THE UPPER PORTION OF THE BOWL TO CONNECT THE SAME TOGETHER, SEALING MEANS IN THE CONNECTION, A FILLER ELEMENT IN THE BODY, THE FILTER ELEMENT COMPRISING A FILTER MEDIA, A CENTRAL FORAMINOUS TUBE WITHIN THE FILTER MEDIA AND END CAPS ON THE FILTER MEDIA, ONE OF THE END CAPS HAVING AN OPENING THEREIN SEALINGLY ENGAGING THE CENTRAL FLANGE, THE OTHER END CAP BEING OF SOLID CONSTRUCTION AND HAVING AN UPSTANDING FLANGE THEREON ENGAGING THE END PORTION OF THE FILTER MEDIA, THE FLANGE HAVING SPACED SLOTS
Claim 2
Dependent Claim
179 words
AN IN-LINE FILTER APPARATUS COMPRISING A BODY HAVING A HEAD PORTION WITH INLET AND OUTLET MEANS THEREIN, A CENTRAL FLANGE EXTENDING FROM THE HEAD PORTION HAVING AN OPENING THEREIN LEADING TO THE OUTLET MEANS, AND AN ELONGATED OUTER WALL EXTENDING FROM THE HEAD PORTION A GREATER EXTENT THAN THE CENTRAL FLANGE AND HAVING A FREE END, A TRANSPARENT SEDIMENT BOWL, THE BOWL BEING TRANSPARENT SUBSTANTIALLY THROUGHOUT THE SURFACE THEREOF, THE BOWL HAVING AN UPPER PORTION, COOPERATING MEANS ON THE INNER SURFACE OF THE FREE END OF THE OUTER WALL AND THE OUTER SURFACE OF THE UPPER PORTION OF THE BOWL TO CONNECT THE SAME TOGETHER, SEALING MEANS IN THE CONNECTION, A FILLER ELEMENT IN THE BODY, THE FILTER ELEMENT COMPRISING A FILTER MEDIA, A CENTRAL FORAMINOUS TUBE WITHIN THE FILTER MEDIA AND END CAPS ON THE FILTER MEDIA, ONE OF THE END CAPS HAVING AN OPENING THEREIN SEALINGLY ENGAGING THE CENTRAL FLANGE, THE OTHER END CAP BEING OF SOLID CONSTRUCTION AND HAVING AN UPSTANDING FLANGE THEREON ENGAGING THE END PORTION OF THE FILTER MEDIA, THE FLANGE HAVING SPACED SLOTS
References Cited (Backward Citations)
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |