Patent US3797066A successfully refreshed from Google Patents.
US3797066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shag rug vacuum head
Assignee: Individual
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Filing: 1972-09-05
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Granted: 1974-03-19
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Expires: 1992-09-05
Abstract
Abstract A head for a vacuum shag rug cleaner in which a comb or brush is mounted in the head on a transverse pivot to swing the comb or brush from a position upright and projecting from the bottom of the head to be effective in combing, to a position with the comb or brush swung to one side with the teeth nearly encompassed in the head. As the vacuum head is moved across a shag rug the teeth will comb the shag rug in one direction and will slide thereover when moved in the opposite direction on the return stroke so that all of the combing is in a single direction to give the surface of the rug a uniform appearance. The comb or brush is spring biased to its upright position and is moved to its non-effective position by action of movement of the comb across the rug in a direction to compress the springs therein.
Inventors
- 👤 J Zaidan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:43
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
194 words
A shag rug vacuum cleaning head comprising an elongate housing having an open bottom, spaced parallel end walls secured in opposite ends of said housing, a channel bracket pivotally mounted to each of said end walls within said housing, an elongate substantially flat rug treating member engageable in said channel brackets at opposite ends of said memBer, means on opposite ends of said member for detachably securing said member in said channel brackets, said member being adapted for swinging movement with said brackets in said hood, stop means in said hood for limiting the swinging movement of said brackets in one direction to an upright position of said member within said hood, a resilient leaf spring secured to said member and engaging said housing for normally urging said member and said brackets into stop means engaging position of said brackets while permitting said member to swing away from said stop means on movement of said hood in one direction and disengageable means on one of said end walls to engage the side of said bracket opposite said stop means to prevent the movement of said bracket in a direction opposite to said stop means.
Claim 2
Dependent Claim
194 words
A shag rug vacuum cleaning head comprising an elongate housing having an open bottom, spaced parallel end walls secured in opposite ends of said housing, a channel bracket pivotally mounted to each of said end walls within said housing, an elongate substantially flat rug treating member engageable in said channel brackets at opposite ends of said memBer, means on opposite ends of said member for detachably securing said member in said channel brackets, said member being adapted for swinging movement with said brackets in said hood, stop means in said hood for limiting the swinging movement of said brackets in one direction to an upright position of said member within said hood, a resilient leaf spring secured to said member and engaging said housing for normally urging said member and said brackets into stop means engaging position of said brackets while permitting said member to swing away from said stop means on movement of said hood in one direction and disengageable means on one of said end walls to engage the side of said bracket opposite said stop means to prevent the movement of said bracket in a direction opposite to said stop means.
Claim 3
Dependent Claim
40 words
A device as claimed in claim 1 wherein the means for securing said member in said bracket includes spring members secured to opposite ends of said member and engaging in said brackets to resiliently secure said member in said brackets.
Claim 4
Dependent Claim
28 words
A device as claimed in claim 1 wherein said rug treating member includes a plurality of rigid teeth secured thereto in depending relation along the lower edge thereof.
Claim 5
Dependent Claim
24 words
A device as claimed in claim 1 wherein said rug treating member comprises a brush having bristles detachably secured to the lower edge thereof.
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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |