US3583413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer cleaner
Assignee: Individual
•
Filing: 1968-12-30
•
Granted: 1971-06-08
•
Expires: 1988-12-30
Abstract
Abstract Apparatus for holding detachably a liquid strainer for the purpose of cleaning same utilizing a cleaning agent and air under pressure.
Inventors
- 👤 Constantinos Mertzanis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:53
CPC Classifications
B; B01; B01D; B01D41/00; B01D41/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2511
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
85 words
A strainer comprising: a hollow tank having a removable sealable cover; an adjustable strainer retaining means for holding said strainer in said tank; means for feeding air and cleansing agent under pressure into said tank, through said strainer and out of said tank whereby said strainer is blown clear; a hollow spiral tube forming part of said feed means surrounding said strainer wherein said spiral tube has perforations directed toward said strainer; wherein said retaining means includes top and bottom retainers through which air flows.
Claim 2
Dependent Claim
85 words
A strainer comprising: a hollow tank having a removable sealable cover; an adjustable strainer retaining means for holding said strainer in said tank; means for feeding air and cleansing agent under pressure into said tank, through said strainer and out of said tank whereby said strainer is blown clear; a hollow spiral tube forming part of said feed means surrounding said strainer wherein said spiral tube has perforations directed toward said strainer; wherein said retaining means includes top and bottom retainers through which air flows.
Claim 3
Dependent Claim
14 words
A strainer as in claim 1 wherein said tank is vented to the atmosphere.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |