Patent US4132507A successfully refreshed from Google Patents.
US4132507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blowing apparatus
Assignee: SHIKUTANI KK
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Filing: 1977-11-23
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Granted: 1979-01-02
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Expires: 1997-11-23
Abstract
Abstract Blowing apparatus suspensible from one's shoulder is provided with an axial blower having the rotor thereof coupled with the crankshaft of a gasoline engine. The stator blades of the blower are removably fixed peripherally to the housing of blower and partially to the casing of the engine. The engine does not require a cooling fan because it is sufficiently cooled by the suction-air flowing around. Further an independent fuel tank is not required because of a hollow guide disposed in front of the rotor and serving as a fuel storage. The nozzle, flexible tube, and the discharge housing of the blower can be made of synthetic plastics in the form of a single annular body without any connecting means. Consequently, the apparatus of the present invention is remarkably light and compact.
Inventors
- 👤 Satoshi Akiyama
- 👤 Michio Shikutani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:29
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/005; E; E01; E01H; E01H1/00; E01H1/08; E01H1/0809; F; F04; F04D; F04D25/00; F04D25/02; F04D25/08; F04D25/084
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
A blowing apparatus comprising a gasoline engine, an axial fan having the rotor thereof coupled with a rotating shaft of said engine, an annular body composed of fan, suction and discharge housings, a flexible tube connected to the front end of the discharge housing, a blowing nozzle connected to the forward end of said flexible tube, a shoulder belt attached to said annular body, said axial fan having the stator blades thereof removably secured to the inner periphery of the fan housing, said engine having a casing thereof detachably fixed to the stator blades, the suction housing surrounding said engine, a cone-guide coaxially disposed in front of the rotor and partially radially secured to the inner periphery of the discharge housing, the fan housing being removably, air-tightly and peripherally connected to both the suction and discharge housings.
Claim 2
Dependent Claim
137 words
A blowing apparatus comprising a gasoline engine, an axial fan having the rotor thereof coupled with a rotating shaft of said engine, an annular body composed of fan, suction and discharge housings, a flexible tube connected to the front end of the discharge housing, a blowing nozzle connected to the forward end of said flexible tube, a shoulder belt attached to said annular body, said axial fan having the stator blades thereof removably secured to the inner periphery of the fan housing, said engine having a casing thereof detachably fixed to the stator blades, the suction housing surrounding said engine, a cone-guide coaxially disposed in front of the rotor and partially radially secured to the inner periphery of the discharge housing, the fan housing being removably, air-tightly and peripherally connected to both the suction and discharge housings.
Claim 3
Dependent Claim
26 words
A blowing apparatus according to claim 1, wherein said cone-guide has the inside space formed as a fuel tank and inlet and outlet ports mounted therein.
Claim 4
Dependent Claim
30 words
A blowing apparatus according to claim 1, wherein said blowing nozzle and flexible tube are made of synthetic plastics in the form of a single tubular body without connecting means.
Claim 5
Dependent Claim
37 words
A blowing apparatus according to claim 3, wherein the discharge housing of said body is made of synthetic plastics in the form of a single body together with said blowing nozzle and flexible tube without connecting means.
Claim 6
Dependent Claim
25 words
A blowing apparatus according to claim 1, wherein said annular body has a pair of pads of spongy material mounted on the both sides thereof.
Claim 7
Dependent Claim
34 words
A blowing apparatus according to claim 1, wherein said annular body has a stand mounted on the underside thereof, said stand grounding near a point projected by the center of gravity of said engine.
Claim 8
Dependent Claim
12 words
A blowing apparatus according to claim 6, wherein said stand is wheeled.
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) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |