US3262568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic filter mechanism for drycleaner
Assignee: Westinghouse Electric Corp
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Filing: 1963-12-23
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Granted: 1966-07-26
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Edgar L Zehrbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:29
CPC Classifications
D; D06; D06F; D06F43/00; D06F43/08; D06F43/081; D06F43/085; B; B01; B01D; B01D29/00; B01D29/11; B01D29/114; B01D29/50; B01D29/52; B01D29/60; B01D29/62; B01D29/70; B01D29/72; B01D29/76; B01D29/78; B01D37/00; B01D37/02; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0446; B01D2201/28; B01D2201/287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
IN DRYCLEANING AUTOMATIC FILTER MECHANISM, THE COMBINATION OF: A FILTER VESSEL FOR PASSING A CLEANING FLUID THERETHROUGH TO BE FILTERED; A PLURALITY OF FINE MESH TUBES DISPOSED WITHIN SAID VESSEL, EACH OF SAID TUBES HAVING DISPOSED ON THE SURFACE THEREOF A FILTERING MIXTURE; A TUBE SUPPORT SHEET FIXED TO SAID PLURALITY OF TUBES TO SUPPORT SAID PLURALITY OF TUBES; A SEALING RING DISPOSED WITHIN SAID VESSEL CONTIGUOUS TO SAID TUBE SUPPORT SHEET TO SEAL AROUND SAID PLURALITY OF TUBES SO THAT THE ONLY OPENINGS NORMALLY THROUGH SAID VESSEL IS THROUGH SAID PLURALITY OF TUBES; A DRIVING ASSEMBLY INCLUDING A GEAR-MOTOR; SAID DRIVING ASSEMBLY BEING OPERATIVE TO CAUSE SAID TUBE SUPPORT SHEET TO BE FORCED AWAY FROM SAID SEALING RING DUE TO THE ACTION OF SAID GEAR-MOTOR, WITH SAID TUBE SUPPORT SHEET AFTER BEING MOVED A PREDETERMINED DISTANCE BEING RETURNED VIGOROUSLY TO ITS NORMAL POSITION CONTIGUOUS TO SAID SEALING RING SO THAT SAID PLURALITY OF TUBES WILL BE CLEARED OF ANY CLOGGING MATTER DISPOSED THEREON DURING THE DRYCLEANING OPERATION; AND A SAFETY SWITCH TO PROHIBIT SAID GEAR-MOTOR FROM STOPPING WHILE SAID TUBE SUPPORT SHEET IS AWAY FROM SAID SEALING RING.
Claim 2
Dependent Claim
189 words
IN DRYCLEANING AUTOMATIC FILTER MECHANISM, THE COMBINATION OF: A FILTER VESSEL FOR PASSING A CLEANING FLUID THERETHROUGH TO BE FILTERED; A PLURALITY OF FINE MESH TUBES DISPOSED WITHIN SAID VESSEL, EACH OF SAID TUBES HAVING DISPOSED ON THE SURFACE THEREOF A FILTERING MIXTURE; A TUBE SUPPORT SHEET FIXED TO SAID PLURALITY OF TUBES TO SUPPORT SAID PLURALITY OF TUBES; A SEALING RING DISPOSED WITHIN SAID VESSEL CONTIGUOUS TO SAID TUBE SUPPORT SHEET TO SEAL AROUND SAID PLURALITY OF TUBES SO THAT THE ONLY OPENINGS NORMALLY THROUGH SAID VESSEL IS THROUGH SAID PLURALITY OF TUBES; A DRIVING ASSEMBLY INCLUDING A GEAR-MOTOR; SAID DRIVING ASSEMBLY BEING OPERATIVE TO CAUSE SAID TUBE SUPPORT SHEET TO BE FORCED AWAY FROM SAID SEALING RING DUE TO THE ACTION OF SAID GEAR-MOTOR, WITH SAID TUBE SUPPORT SHEET AFTER BEING MOVED A PREDETERMINED DISTANCE BEING RETURNED VIGOROUSLY TO ITS NORMAL POSITION CONTIGUOUS TO SAID SEALING RING SO THAT SAID PLURALITY OF TUBES WILL BE CLEARED OF ANY CLOGGING MATTER DISPOSED THEREON DURING THE DRYCLEANING OPERATION; AND A SAFETY SWITCH TO PROHIBIT SAID GEAR-MOTOR FROM STOPPING WHILE SAID TUBE SUPPORT SHEET IS AWAY FROM SAID SEALING RING.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |