Patent US3984893A successfully refreshed from Google Patents.
US3984893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum sweeper device
Assignee: Individual
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Filing: 1975-04-22
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Granted: 1976-10-12
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Expires: 1995-04-22
Abstract
Abstract A vacuum sweeper device for use with a tractor-type rotary mower has a vacuum blower which is mounted on a frame and which is driven by a drive shaft connected to the power-take-off of the tractor. The frame is attached to the rear of the main frame of the tractor and includes provision for removably mounting a cylindrical container which collects material picked up by the vacuum blower.
Inventors
- 👤 Marion L. Ashley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:22
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0827; E01H1/0836; Y; Y10; Y10S; Y10S56/00; Y10S56/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A vacuum sweeper device for a tractor having a power-take-off and including a rotary mower assembly, said vacuum sweeper device, comprising a support frame, attachment means for rigidly securing said support frame to said tractor, a vacuum blower attached to said support frame and having an inlet port, a discharge port, and a drive shaft, a container frame secured to said support frame, container means removably mounted on said container frame, inlet hose means leading to said inlet port of said vacuum blower, discharge hose leading from said discharge port of said vacuum blower to said container means, said support frame being positioned to locate the attached vacuum blower with its drive shaft in axial alignment with said power-take-off, and driving connection means connected to said power-take-off of said tractor and to said drive shaft of said vacuum blower for driving said vacuum blower while said rotary mower assembly is operating.
Claim 2
Dependent Claim
151 words
A vacuum sweeper device for a tractor having a power-take-off and including a rotary mower assembly, said vacuum sweeper device, comprising a support frame, attachment means for rigidly securing said support frame to said tractor, a vacuum blower attached to said support frame and having an inlet port, a discharge port, and a drive shaft, a container frame secured to said support frame, container means removably mounted on said container frame, inlet hose means leading to said inlet port of said vacuum blower, discharge hose leading from said discharge port of said vacuum blower to said container means, said support frame being positioned to locate the attached vacuum blower with its drive shaft in axial alignment with said power-take-off, and driving connection means connected to said power-take-off of said tractor and to said drive shaft of said vacuum blower for driving said vacuum blower while said rotary mower assembly is operating.
Claim 3
Dependent Claim
56 words
A vacuum sweeper device for a tractor having a power-take-off, according to claim 1 further including container retaining means on said container frame for retaining said container means, said container retaining means comprising a retainer ring on the top surface of said container frame and sized to removably receive the lower end of said container means.
Claim 4
Dependent Claim
39 words
A vacuum sweeper device for a tractor having a power-take-off, according to claim 2 in which said container means comprises a rigid cylindrical container having an open top and a closed lower end removably received within said retainer ring.
Claim 5
Dependent Claim
41 words
A vacuum sweeper device for a tractor having a power-take-off, according to claim 1 in which said discharge hose means comprises a hollow hood removably covering said container means and a flexible hose having an end communicating with said hollow hood.
Claim 6
Dependent Claim
59 words
A vacuum sweeper device for a tractor having a power-take-off, according to claim 1 in which said support frame comprises a pair of spaced apart horizontal members secured at one end to said tractor and a vertical plate, for attaching said vacuum blower, with said vertical plate connecting said pair of horizontal members at the opposite, free ends thereof.
Claim 7
Dependent Claim
56 words
A vacuum sweeper device for a tractor having a power-take-off according to claim 1 further including attachment means for securing the forward end of said container frame to said support frame with said container frame projecting rearwardly of said support frame and said container means removably mounted on the rear end portion of said container frame.
Claim 8
Dependent Claim
60 words
A vacuum sweeper device for a tractor having a power-take-off, according to claim 6 further including a container retaining ring mounted on the rear end portion of said container frame for removably receiving said container means, and an upright support member secured to an intermediate portion of said container frame and having clamping means for retaining said discharge hose means.
Claim 9
Dependent Claim
37 words
A vacuum sweeper device for a tractor having a power-take-off, according to claim 1 in which said driving connection means includes flexible coupling means connected to said power-take-off of said tractor and to said aligned drive shaft.
Claim 10
Dependent Claim
38 words
A vacuum sweeper device for a tractor having a power-take-off, according to claim 8 in which said first shaft has a fan blade mounted for rotation with said drive shaft for cooling of adjacent portions of said tractor.
References Cited (Backward Citations)
US2736151A
Cited
US1355787A
Cited
US2493422A
Cited
US3203022A
Cited
CH417663A
Cited
US3624989A
Cited
US3903565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |