US3744082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner and rake
Assignee: Individual
•
Filing: 1971-11-05
•
Granted: 1973-07-10
•
Expires: 1991-11-05
Abstract
Abstract A vacuum cleaner and rake combination. The rake includes a frame having tines mounted thereon and projecting downwardly therefrom. Such rake is secured to the vacuum cleaner with the frame positioned in advance of the vacuum cleaner housing, whereby it moves in the path of the cleaner housing on movement of the vacuum cleaner. Multiple rows of tines are provided with the tines of the various rows staggered. The tines incline toward the housing of the vacuum cleaner in projecting downwardly from the frame.
Inventors
- 👤 A Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:04
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
112 words
A rake attachment for a vacuum cleaner comprising, in operative position, a substantially horizontal frame having a top and a bottom, forward and trailing edges, and opposed sides joining said forward and trailing edges, multiple tines disposed in multiple rows on the bottom of said frame, the rows extending between said sides of the frame and the tines of one row being staggered with respect to the tines of other rows, the tines projecting downwardly and inclining rearwardly toward the trailing edge of the frame, and means on opposite sides of said frame projecting rearwardly of the trailing edge thereof for detachably coupling the frame to the housing of a vacuum cleaner.
Claim 2
Dependent Claim
112 words
A rake attachment for a vacuum cleaner comprising, in operative position, a substantially horizontal frame having a top and a bottom, forward and trailing edges, and opposed sides joining said forward and trailing edges, multiple tines disposed in multiple rows on the bottom of said frame, the rows extending between said sides of the frame and the tines of one row being staggered with respect to the tines of other rows, the tines projecting downwardly and inclining rearwardly toward the trailing edge of the frame, and means on opposite sides of said frame projecting rearwardly of the trailing edge thereof for detachably coupling the frame to the housing of a vacuum cleaner.
Claim 3
Dependent Claim
49 words
The apparatus of claim 1, wherein the means on opposite sides of said frame comprises opposed straps projecting rearwardly to terminate in unjoined ends adapted to straddle the vacuum cleaner housing, said straps having means adjacent their unjoined ends for fixedly Securing said ends to the vacuum cleaner housing.
Claim 4
Dependent Claim
123 words
The combination of a vacuum cleaner including a housing mounted for movement over the ground, the housing overlying and embracing a suction area cleaned by the vacuum cleaner, a frame having a top and a bottom secured to the vacuum cleaner positioned forwardly of the vacuum cleaner housing, said frame moving in the path of the cleaner housing and the suction area embraced thereby with movement of the vacuum cleaner, and multiple tines disposed in multiple rows on the bottom of said frame which rows extend transversely of said path, said tines being mounted on and projecting downwardly from said frame, the tines of the various rows being staggered and the tines inclining toward the vacuum cleaner in projecting down from said frame.
Claim 5
Dependent Claim
123 words
The combination of a vacuum cleaner including a housing mounted for movement over the ground, the housing overlying and embracing a suction area cleaned by the vacuum cleaner, a frame having a top and a bottom secured to the vacuum cleaner positioned forwardly of the vacuum cleaner housing, said frame moving in the path of the cleaner housing and the suction area embraced thereby with movement of the vacuum cleaner, and multiple tines disposed in multiple rows on the bottom of said frame which rows extend transversely of said path, said tines being mounted on and projecting downwardly from said frame, the tines of the various rows being staggered and the tines inclining toward the vacuum cleaner in projecting down from said frame.
References Cited (Backward Citations)
US3538533A
Cited
US3685089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |