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US3790979A Expired / Lapsed US ⏱️ 0.0 years remaining

Submarine type, self-propelled suction sweeper

Assignee: Armco Inc
•
Filing: 1972-11-06
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Granted: 1974-02-12
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Expires: 1992-11-06
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Abstract

Abstract A suction type, fluid operated sweeper for sweeping and pumping the water out of a swimming pool or the like and to a water filtering and/or cleaning unit. The sweeper moves along the bottom of the pool and a suction hose extends upwardly therefrom to draw water through the sweeper for depositing it in the water cleaning unit outside of the pool. The water passing through the sweeper, due to the action of the suction, is utilized to drive the propelling means for the sweeper to cause the sweeper to ambulate along the bottom of the pool.

Inventors

  • 👤 D Foster

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 14:28
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/16; E04H4/1654

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 179 words
A suction type, mobile sweeper for a swimming pool or the like comprising a housing having an open bottom which is adapted to be moved along the surface of the pool whose water is to be cleaned, said housing also having a water motor casing which terminates in a tubular suction conduit attaching portion, a water motor including a rotatable impeller located in said tubular portion of said water motor casing, a traction wheel rotatably journalled within the housing for supporting said housing for movement over the surface of said pool, and power transmitting means between said impeller and said traction wheel whereby suction is applied to said housing to thereby cause water from the pool to flow through said housing and through said water motor, said blades of said impeller being axially skewed with respect to the impeller axis and circumferentially spaced apart and fixed to said shaft and extending radially therefrom, whereby when water is drawn upwardly through said impeller, said impelleR is driven by said water thereby driving said traction wheel through said power transmitting means.
Claim 2
Dependent Claim 179 words
A suction type, mobile sweeper for a swimming pool or the like comprising a housing having an open bottom which is adapted to be moved along the surface of the pool whose water is to be cleaned, said housing also having a water motor casing which terminates in a tubular suction conduit attaching portion, a water motor including a rotatable impeller located in said tubular portion of said water motor casing, a traction wheel rotatably journalled within the housing for supporting said housing for movement over the surface of said pool, and power transmitting means between said impeller and said traction wheel whereby suction is applied to said housing to thereby cause water from the pool to flow through said housing and through said water motor, said blades of said impeller being axially skewed with respect to the impeller axis and circumferentially spaced apart and fixed to said shaft and extending radially therefrom, whereby when water is drawn upwardly through said impeller, said impelleR is driven by said water thereby driving said traction wheel through said power transmitting means.
Claim 3
Dependent Claim 69 words
The sweeper set forth in claim 1 further characterized in that said water motor means includes a pair of bearing means removably mounted within said motor motor casing, and an impeller assembly including a shaft rotatably journalled in said bearing means and having a plurality of impeller blades fixed thereto, and said power transmitting means includes gear and shaft means connected between said impeller shaft and said traction wheel.
Claim 4
Dependent Claim 25 words
The sweeper set forth in claim 2 including a removable screen located within said housing and having an opening for accommodation of said traction wheel.
Claim 5
Dependent Claim 49 words
The sweeper set forth in claim 1 further characterized in that said housing is of generally circular shape in plan view and has a downwardly depending skirt, brush means secured around at least a circumferential portion of said skirt and engageable with the surface over which the sweeper traverses.
Claim 6
Dependent Claim 49 words
The sweeper set forth in claim 2 further characterized in that said housing is of generally circular shape in plan view and has a downwardly depending skirt, brush means secured around at least a circumferential portion of said skirt and engagable with the surface over which the sweeper traverses.
Claim 7
Dependent Claim 61 words
A sweeper as set forth in claim 1 further characterized in that said power transmitting means includes a bracket, a drive shaft secured in said bracket, a gear fixed to each end of said drive shaft, and means for removably securing said bracket within said housing whereby said bracket, shaft and gears can be removed from said housing as a unit.
Claim 8
Dependent Claim 61 words
A sweeper as set forth in claim 2 further characterized in that said power transmitting means includes a bracket, a drive shaft secured in said bracket, a gear fixed to each end of said drive shaft, and means for removably securing said bracket within said housing whereby said bracket, shaft and gears can be removed from said housing as a unit.
Claim 9
Dependent Claim 201 words
A suction type, mobile sweeper for a swimming pool or the like comprising a housing having an open bottom which is adapted to be moved along the surface of the pool to be cleaned, said housing being of generally circular shape in plan view and having a downwardly depending skirt, and brush means secured around at least a circumferential portion of said skirt and engagable with the surface over which the sweeper traverses, said housing also having an upwardly extending water motor casing with terminates in a suction conduit attaching portion; a water motor in said casing and including a rotatable impeller having a shaft, spaced apart bearing members in said casing and removably secured therein, said shaft supported in and between said bearing members; a traction wheel rotatably journalled within the housing for supporting said housing for movement in the pool, and power transmitting means including gear and power shaft means between said impeller and said traction wheel whereby when suction is applied to said housing to thereby cause water from the pool to flow through said housing and past said water motor, said impeller is driven by said water thereby driving said traction wheel through said power transmitting means.
Claim 10
Dependent Claim 201 words
A suction type, mobile sweeper for a swimming pool or the like comprising a housing having an open bottom which is adapted to be moved along the surface of the pool to be cleaned, said housing being of generally circular shape in plan view and having a downwardly depending skirt, and brush means secured around at least a circumferential portion of said skirt and engagable with the surface over which the sweeper traverses, said housing also having an upwardly extending water motor casing with terminates in a suction conduit attaching portion; a water motor in said casing and including a rotatable impeller having a shaft, spaced apart bearing members in said casing and removably secured therein, said shaft supported in and between said bearing members; a traction wheel rotatably journalled within the housing for supporting said housing for movement in the pool, and power transmitting means including gear and power shaft means between said impeller and said traction wheel whereby when suction is applied to said housing to thereby cause water from the pool to flow through said housing and past said water motor, said impeller is driven by said water thereby driving said traction wheel through said power transmitting means.
Claim 11
Dependent Claim 27 words
The sweeper as claimed in claim 8 including a bracket removably secured in said housing, said power shaft means being secured in said bracket for removal therewith.
Claim 12
Dependent Claim 204 words
A suction type, mobile sweeper for a swimming pool or the like comprising a housing having an open bottom which is adapted to be moved along the surface of the pool whose water is to be cleaned, said housing also having a water motor casing which terminates in a suction conduit attaching portion, a water motor including a pair of bearing means removably mounted within said water motor casing, and an impeller assembly including a shaft rotatably journalled in said bearing means and having a plurality of impeller blades fixed thereto, a traction wheel rotatably journalled within the hoUsing for supporting said housing for movement over the surface of said pool, and power transmitting means between said impeller assembly shaft and said traction wheel, said power transmitting means including gear and shaft means connected between said impeller shaft and said traction wheel, whereby when suction is applied to said housing to thereby cause water from the pool to flow through said housing and through said water motor, said impeller assembly shaft is driven by said water thereby driving said traction wheel through said power transmitting means, and a removable screen located within said housing and having an opening for accommodation of said traction wheel.
Claim 13
Dependent Claim 204 words
A suction type, mobile sweeper for a swimming pool or the like comprising a housing having an open bottom which is adapted to be moved along the surface of the pool whose water is to be cleaned, said housing also having a water motor casing which terminates in a suction conduit attaching portion, a water motor including a pair of bearing means removably mounted within said water motor casing, and an impeller assembly including a shaft rotatably journalled in said bearing means and having a plurality of impeller blades fixed thereto, a traction wheel rotatably journalled within the hoUsing for supporting said housing for movement over the surface of said pool, and power transmitting means between said impeller assembly shaft and said traction wheel, said power transmitting means including gear and shaft means connected between said impeller shaft and said traction wheel, whereby when suction is applied to said housing to thereby cause water from the pool to flow through said housing and through said water motor, said impeller assembly shaft is driven by said water thereby driving said traction wheel through said power transmitting means, and a removable screen located within said housing and having an opening for accommodation of said traction wheel.
Claim 14
Dependent Claim 49 words
The sweeper set forth in claim 10 further characterized in that said housing is of generally circular shape in plan view and has a downwardly depending skirt, brush means secured around at least a circumferential portion of said skirt and engagable with the surface over which the sweeper traverses.
Claim 15
Dependent Claim 178 words
A suction type, mobile sweeper for a swimming pool or the like comprising a housing having an open bottom which is adapted to be moved along the surface of the pool whose water is to be cleaned, said housing also having a water motor casing which terminates in a suction conduit attaching portion, a water motor including a rotatable impeller located in said water motor casing, a traction wheel rotatably journalled within the housing for supporting said housing for movement over the surface of said pool, and power transmitting means between said impeller and said traction wheel whereby when suction is applied to said housing to thereby cause water from the pool to flow through said housing and through said water motor, said impeller is driven by said water thereby driving said traction wheel through said power transmitting means, said housing being of generally circular shape in plan view and having a downwardly depending skirt, and brush means secured around at least a circumferential portion of said skirt and engagable with the surface over which the sweeper traverses.
Claim 16
Dependent Claim 178 words
A suction type, mobile sweeper for a swimming pool or the like comprising a housing having an open bottom which is adapted to be moved along the surface of the pool whose water is to be cleaned, said housing also having a water motor casing which terminates in a suction conduit attaching portion, a water motor including a rotatable impeller located in said water motor casing, a traction wheel rotatably journalled within the housing for supporting said housing for movement over the surface of said pool, and power transmitting means between said impeller and said traction wheel whereby when suction is applied to said housing to thereby cause water from the pool to flow through said housing and through said water motor, said impeller is driven by said water thereby driving said traction wheel through said power transmitting means, said housing being of generally circular shape in plan view and having a downwardly depending skirt, and brush means secured around at least a circumferential portion of said skirt and engagable with the surface over which the sweeper traverses.
Claim 17
Dependent Claim 32 words
The sweeper set forth in claim 11 further characterized in that said blades of said impeller assembly are axially skewed and circumferentially spaced blades fixed to said shaft and extending radially therefrom.
Claim 18
Dependent Claim 49 words
The sweeper set forth in claim 13 further characterized in that said housing is of generally circular shape in plan view and has a downwardly depending skirt, brush means secured around at least a circumferential portion of said skirt and engagable with the surface over which the sweeper traverses.

References Cited (Backward Citations)

US983988A Cited
FR781510A Cited
US3229315A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-11 1977-08-13 1978-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-11 1981-08-13 1982-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-11 1985-08-13 1986-02-12 $7700.00 Window Closed / Lapsed

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