US5222275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blower vacuum
Assignee: MTD Products Inc
•
Filing: 1992-05-22
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Granted: 1993-06-29
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Expires: 2012-05-22
Abstract
Abstract A portable hand-held blower vacuum apparatus (10) having a hinged inlet cover (24) with a handle (26) disposed at one end of the cover (24). The cover (24) is moveable between a closed position where the cover spans an air inlet opening (20) and an open position to allow insertion of a vacuum tube (50) in to the inlet opening (20). The handle (26) is used to move the cover between the open and closed positions. Air flows into the inlet opening (20) through a screen (38) in the cover (24), through arcuate slots (42) in a tubular extension (44) of the inlet opening (20) and over a circumferentially extending rib (46) formed on the cover (24). In an alternative embodiment, a dedicated blower is provided in which a solid, stationary cover (54) spans the inlet opening (20).
Inventors
- 👤 Michael Baker
- 👤 Harold Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:57
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/24; A47L5/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
139 words
A hand-held combination blower and vacuum apparatus comprising: a housing; a motor disposed in the housing; an impeller operatively connected to the motor; an air-flow duct formed in the housing, the air-flow duct enclosing the impeller and having an air inlet comprising a tubular extension extending axially outwardly from the air-flow duct, the tubular extension having a plurality of arcuate slots disposed about the perimeter of the tubular extension to provide air flow into the inlet opening and an air outlet; a cover for the air inlet pivotably attached on the housing and pivotable between a closed position wherein it spans the air inlet and an open position wherein a vacuum tube can be inserted into the air inlet; and a handle attached to the cover for gripping when the cover is pivoted between the open and closed positions.
Claim 2
Dependent Claim
139 words
A hand-held combination blower and vacuum apparatus comprising: a housing; a motor disposed in the housing; an impeller operatively connected to the motor; an air-flow duct formed in the housing, the air-flow duct enclosing the impeller and having an air inlet comprising a tubular extension extending axially outwardly from the air-flow duct, the tubular extension having a plurality of arcuate slots disposed about the perimeter of the tubular extension to provide air flow into the inlet opening and an air outlet; a cover for the air inlet pivotably attached on the housing and pivotable between a closed position wherein it spans the air inlet and an open position wherein a vacuum tube can be inserted into the air inlet; and a handle attached to the cover for gripping when the cover is pivoted between the open and closed positions.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 wherein the cover has a screen extending across the inlet opening when the cover is in the closed position.
Claim 4
Dependent Claim
236 words
A hand-held combination convertible blower and vacuum apparatus comprising: a housing having an upper end and a lower end, the housing having a primary handle formed on the upper end of the housing and extending generally vertically upwardly and rearwardly from the upper end of the housing; a motor disposed in the upper end of the housing; an impeller operatively connected to the motor; an air-flow duct formed in the lower end of the housing, the air-flow duct enclosing the impeller and having an air inlet formed in a base planar surface of the lower end of the housing and an air outlet in a front side of the lower end of the housing; a cover for the air inlet pivotably attached on the lower end of the housing and pivotable between a closed position wherein the cover spans the air inlet and an open position wherein a vacuum tube can be inserted into the air inlet; and a secondary handle attached to the cover and extending in a generally perpendicularly orientation to the primary handle across the width of the housing at the rear side of the lower end of the housing for gripping when the cover is pivoted between the open and closed positions and for providing a second handle for holding the apparatus when used in the vacuum mode of operation to guide movement of a suction duct secured within the air duct.
Claim 5
Dependent Claim
236 words
A hand-held combination convertible blower and vacuum apparatus comprising: a housing having an upper end and a lower end, the housing having a primary handle formed on the upper end of the housing and extending generally vertically upwardly and rearwardly from the upper end of the housing; a motor disposed in the upper end of the housing; an impeller operatively connected to the motor; an air-flow duct formed in the lower end of the housing, the air-flow duct enclosing the impeller and having an air inlet formed in a base planar surface of the lower end of the housing and an air outlet in a front side of the lower end of the housing; a cover for the air inlet pivotably attached on the lower end of the housing and pivotable between a closed position wherein the cover spans the air inlet and an open position wherein a vacuum tube can be inserted into the air inlet; and a secondary handle attached to the cover and extending in a generally perpendicularly orientation to the primary handle across the width of the housing at the rear side of the lower end of the housing for gripping when the cover is pivoted between the open and closed positions and for providing a second handle for holding the apparatus when used in the vacuum mode of operation to guide movement of a suction duct secured within the air duct.
Claim 6
Dependent Claim
157 words
A hand-held combination blower and vacuum apparatus comprising: a housing; a motor disposed in the housing; an impeller operatively connected to the motor; an air-flow duct formed in the housing, the air-flow duct enclosing the impeller and having an air inlet and an air outlet; a cover for the air inlet pivotably attached on the housing and pivotable between a closed position wherein it spans the air inlet and an open position wherein a vacuum tube can be inserted into the air inlet the cover having a first part of a hinge and the air-flow duct having a second part of a hinge, the first and second parts being assembled to pivotably connect the cover to the air-flow duct; and a handle attached to the cover for gripping when the apparatus is pivoted between the open and closed positions, the handle being disposed on the opposite side of the first part of the hinge from the cover.
Claim 7
Dependent Claim
157 words
A hand-held combination blower and vacuum apparatus comprising: a housing; a motor disposed in the housing; an impeller operatively connected to the motor; an air-flow duct formed in the housing, the air-flow duct enclosing the impeller and having an air inlet and an air outlet; a cover for the air inlet pivotably attached on the housing and pivotable between a closed position wherein it spans the air inlet and an open position wherein a vacuum tube can be inserted into the air inlet the cover having a first part of a hinge and the air-flow duct having a second part of a hinge, the first and second parts being assembled to pivotably connect the cover to the air-flow duct; and a handle attached to the cover for gripping when the apparatus is pivoted between the open and closed positions, the handle being disposed on the opposite side of the first part of the hinge from the cover.
References Cited (Backward Citations)
US3711742A
Cited
US4286675A
Cited
US4350123A
Cited
US4325163A
Cited
US4644606A
Cited
USRE33050E
Cited
US4694528A
Cited
US5003662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-28 | 1996-12-28 | 1997-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-28 | 2000-12-28 | 2001-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-28 | 2004-12-28 | 2005-06-29 | $7700.00 | Window Closed / Lapsed |