US3467977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam generator for scrubbing devices
Assignee: Hoover Co
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Filing: 1964-12-28
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Granted: 1969-09-23
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Mark W Helm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:31
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/408; A47L11/4083; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/1625; A47L11/32; A47L11/325; A47L11/34; A47L11/4036; A47L11/4038; A47L11/4063; A47L11/4069
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A SHAMPOONING AND SCRUBBING DEVICE INCLUDING: (A) A FIRST ELEMENT COMPRISING A CASING, (B) A SHAFT ROTATABLY MOUNTED ON SAID CASING, (C) POWER MEANS FOR ROTATING SAID SHAFT, (D) A SECOND ELEMENT COMPRISING SCRUBBING MEANS MOUNTED ON SAID SHAFT, (E) SAID SCRUBBING MEANS BEING SPACED AXIALLY ALONG SAID SHAFT FROM SAID CASING TO DEFINE A SPACE BETWEEN SAID SCRUBBING MEANS AND SAID CASING AXIALLY OF SAID SHAFT, (F) A SPONGE POSITIONED ON ONE OF SAID FIRST AND SECOND ELEMENTS IN SAID SPACE, (G) CONTACT MEANS ON THE OTHER OF SAID FIRST AND SECOND ELEMENTS PROJECTING INTO SAID SPACE, AND (H) WEAR MEANS COMPRISING A FLAT RIGID DISC MEMBER POSITIONED BETWEEN SAID SPONGE AND SAID CONTACT MEANS, (I) WHEREBY WHEN SAID SCRUBBING MEANS IS ROTATED BY SAID SHAFT THERE IS RELATIVE MOVEMENT BETWEEN SAID SPONGE AND SAID CONTACT MEANS CAUSING SAID SPONGE TO BE ALTERNATIVELY COMPRESSED AND EXPANDED.
Claim 2
Dependent Claim
148 words
IN A SHAMPOONING AND SCRUBBING DEVICE INCLUDING: (A) A FIRST ELEMENT COMPRISING A CASING, (B) A SHAFT ROTATABLY MOUNTED ON SAID CASING, (C) POWER MEANS FOR ROTATING SAID SHAFT, (D) A SECOND ELEMENT COMPRISING SCRUBBING MEANS MOUNTED ON SAID SHAFT, (E) SAID SCRUBBING MEANS BEING SPACED AXIALLY ALONG SAID SHAFT FROM SAID CASING TO DEFINE A SPACE BETWEEN SAID SCRUBBING MEANS AND SAID CASING AXIALLY OF SAID SHAFT, (F) A SPONGE POSITIONED ON ONE OF SAID FIRST AND SECOND ELEMENTS IN SAID SPACE, (G) CONTACT MEANS ON THE OTHER OF SAID FIRST AND SECOND ELEMENTS PROJECTING INTO SAID SPACE, AND (H) WEAR MEANS COMPRISING A FLAT RIGID DISC MEMBER POSITIONED BETWEEN SAID SPONGE AND SAID CONTACT MEANS, (I) WHEREBY WHEN SAID SCRUBBING MEANS IS ROTATED BY SAID SHAFT THERE IS RELATIVE MOVEMENT BETWEEN SAID SPONGE AND SAID CONTACT MEANS CAUSING SAID SPONGE TO BE ALTERNATIVELY COMPRESSED AND EXPANDED.
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) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |