US3344589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary system for dust collector
Assignee: American Air Filter Co Inc
•
Filing: 1966-09-14
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Granted: 1967-10-03
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Expires: 1986-09-14
Abstract
No abstract record available.
Inventors
- 👤 Tom R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:21
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/04; B01D46/66; B01D46/70; B01D46/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A DUST COLLECTOR COMPRISING: A HOUSING HAVING SPACED DIRTY GAS INLET MEANS AND CLEAN GAS OUTLET MEANS; VERTICALLY EXTENDING GAS CLEANING TUBE MEANS DISPOSED WITHIN SAID HOUSING IN COMMUNICATION WITH SAID DIRTY GAS INLET MEANS AND SAID CLEAN GAS OUTLET MEANS WHEREBY DIRTY GAS CAN BE INTRODUCED FROM SAID DIRTY GAS INLET MEANS INTO AND PASSED THROUGH SAID TUBE MEANS TO SEPARATE CONTAMINANT PARTICLES THEREFROM WITH THE CLEAN GAS PASSING TO SAID CLEAN GAS OUTLET MEANS; REVERSE BLOW RING FRAME MEANS ADAPTED TO LONGITUDINALLY TRAVERSE SAID TUBE MEANS, SAID REVERSE BLOW RING FRAME MEANS INCLUDING AN INLET
Claim 2
Dependent Claim
97 words
A DUST COLLECTOR COMPRISING: A HOUSING HAVING SPACED DIRTY GAS INLET MEANS AND CLEAN GAS OUTLET MEANS; VERTICALLY EXTENDING GAS CLEANING TUBE MEANS DISPOSED WITHIN SAID HOUSING IN COMMUNICATION WITH SAID DIRTY GAS INLET MEANS AND SAID CLEAN GAS OUTLET MEANS WHEREBY DIRTY GAS CAN BE INTRODUCED FROM SAID DIRTY GAS INLET MEANS INTO AND PASSED THROUGH SAID TUBE MEANS TO SEPARATE CONTAMINANT PARTICLES THEREFROM WITH THE CLEAN GAS PASSING TO SAID CLEAN GAS OUTLET MEANS; REVERSE BLOW RING FRAME MEANS ADAPTED TO LONGITUDINALLY TRAVERSE SAID TUBE MEANS, SAID REVERSE BLOW RING FRAME MEANS INCLUDING AN INLET
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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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |