US2976112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying detergent to rugs and the like
Assignee: Bissell Inc
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Filing: 1959-10-05
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Granted: 1961-03-21
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Expires: 1979-10-05
Abstract
No abstract record available.
Inventors
- 👤 Robert A Yonkers
- 👤 Henry T Lathrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/408; A47L11/4088; A47L11/32; A47L11/325; A47L11/4036; A47L11/4041; A47L11/4063; A47L11/4069; A47L11/4083; Y; Y10; Y10S; Y10S8/00; Y10S8/93; Y10S8/931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
THE METHOD OF APPLYING DETERGENT TO A RUG OR OTHER SURFACE HAVING A NAP TO BE CLEANED, COMPRISING APPLYING SUCCESSIVE LIMITED QUANITIES OF DETERGENT-WATE MIX TO THE TOP OF A ROLLER, SAID ROLLER BEING FREELY ROTATABLE ABOUT ITS AXIS IN OPERATION IN EITHER DIRECTION AND HAVING A RIGID CORE WITH A SURFACE MATERIAL THEREON OF SUBSTANTIAL RADIAL THICKNESS COMPOSED OF A RESILIENT SYNTHETIC SPONGE, WHILE APPLYING TO THE AXIS OF THE ROLLER A RECIPROCATING FORWARD AND BACKWARD MOVEMENT OVER THE RUG EFFECTING A ROLLER ACTION OF SAID ROLLER UPON ITS AXIS, AND SIMULTANEOUSLY APPLYING PRESSURE TO TH ROLLER UPON THE RUG TO EFFECT A PROGRESSIVE AND SUBSTANTIAL DEFORMING OF THE BOTTOM PORTION OF THE SPONGE OF TH ROLLER AND THEREBY TRANSFORM THE DETERGENT-WATER MIX AND THE AIR IN THE PORES OF THE SPONGE OF THE ROLLER INTO A FOAM WHICH PROGRESSIVELY SQUEEZED FROM THE SPONGE AND INTO THE NAP LEAVING EMPTY PORES FILLING WITH AIR IN THAT PORTION OF THE SPONGE MOVING UPWARDLY FROM THE RUG FOR A FRESH LIMITED SUPPLY OF DETERGENT-WATER MIX.
Claim 2
Independent Claim
174 words
THE METHOD OF APPLYING DETERGENT TO A RUG OR OTHER SURFACE HAVING A NAP TO BE CLEANED, COMPRISING APPLYING SUCCESSIVE LIMITED QUANITIES OF DETERGENT-WATE MIX TO THE TOP OF A ROLLER, SAID ROLLER BEING FREELY ROTATABLE ABOUT ITS AXIS IN OPERATION IN EITHER DIRECTION AND HAVING A RIGID CORE WITH A SURFACE MATERIAL THEREON OF SUBSTANTIAL RADIAL THICKNESS COMPOSED OF A RESILIENT SYNTHETIC SPONGE, WHILE APPLYING TO THE AXIS OF THE ROLLER A RECIPROCATING FORWARD AND BACKWARD MOVEMENT OVER THE RUG EFFECTING A ROLLER ACTION OF SAID ROLLER UPON ITS AXIS, AND SIMULTANEOUSLY APPLYING PRESSURE TO TH ROLLER UPON THE RUG TO EFFECT A PROGRESSIVE AND SUBSTANTIAL DEFORMING OF THE BOTTOM PORTION OF THE SPONGE OF TH ROLLER AND THEREBY TRANSFORM THE DETERGENT-WATER MIX AND THE AIR IN THE PORES OF THE SPONGE OF THE ROLLER INTO A FOAM WHICH PROGRESSIVELY SQUEEZED FROM THE SPONGE AND INTO THE NAP LEAVING EMPTY PORES FILLING WITH AIR IN THAT PORTION OF THE SPONGE MOVING UPWARDLY FROM THE RUG FOR A FRESH LIMITED SUPPLY OF DETERGENT-WATER MIX.
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) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |