US3288298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulated aligning means for filter media webs
Assignee: Eimco Corp
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Filing: 1964-06-15
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Granted: 1966-11-29
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Charles E Daugherty
- 👤 Donald K Fleming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:09
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/044; B01D33/048; B01D33/056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A FILTER OF THE TYPE HAVING A FILTER SECTION, A WEB SUPPORT SECTION SPACED APART FROM SAID FILTER SECTION AND AN ENDLESS WEB FILTER MEDIUM TRAINED TO TRAVEL SUCCESSIVELY AROUND SAID FILTER SECTION AND SAID SUPPORT SECTION; THE IMPROVEMENT COMPRISING MEANS FOR MAINTAINING SAID WEB ALIGNED WITH RESPECT TO SAID FILTER AND SUPPORT SECTIONS, SAID MEANS COMPRISING A CONTINUOUS BEAD ALONG BOTH EDGES OF THE WEB, PAIRED GRIPPER MEANS MOUNTED IN TANDEM ON BOTH SIDES OF SAID FILTER ENGAGING EACH OF SAID WEB EDGES, SAID TANDEM PAIRS PIVOTALLY MOUNTED FOR MOVEMENT IN THE PLANE OF SAID WEB, AND MEANS FOR URGING EACH OF SAID TANDEM PAIRS AWAY FROM THE OTHER TOWARD OPPOSITE SIDES OF THE FILTER.
Claim 2
Dependent Claim
117 words
IN A FILTER OF THE TYPE HAVING A FILTER SECTION, A WEB SUPPORT SECTION SPACED APART FROM SAID FILTER SECTION AND AN ENDLESS WEB FILTER MEDIUM TRAINED TO TRAVEL SUCCESSIVELY AROUND SAID FILTER SECTION AND SAID SUPPORT SECTION; THE IMPROVEMENT COMPRISING MEANS FOR MAINTAINING SAID WEB ALIGNED WITH RESPECT TO SAID FILTER AND SUPPORT SECTIONS, SAID MEANS COMPRISING A CONTINUOUS BEAD ALONG BOTH EDGES OF THE WEB, PAIRED GRIPPER MEANS MOUNTED IN TANDEM ON BOTH SIDES OF SAID FILTER ENGAGING EACH OF SAID WEB EDGES, SAID TANDEM PAIRS PIVOTALLY MOUNTED FOR MOVEMENT IN THE PLANE OF SAID WEB, AND MEANS FOR URGING EACH OF SAID TANDEM PAIRS AWAY FROM THE OTHER TOWARD OPPOSITE SIDES OF THE FILTER.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |