US3872533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool cleaner with rotary scrubbing action
Assignee: Individual
•
Filing: 1973-08-31
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Granted: 1975-03-25
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Expires: 1993-08-31
Abstract
Abstract An elongated hollow body is provided defining a center axis and including opposite inlet and outlet end portions and a central portion disposed therebetween. The outlet end portion defines a water outlet and the inlet portion defines a water inlet for connection with the outlet end of a water supply hose. The central portion of the body includes discharge openings spaced thereabout and longitudinally therealong for discharging water from within the central portion outwardly of the latter and the interior of the central portion includes structure movable in all transverse directions relative to the body and positionable by an imbalance of gravity forces acting thereon to a position in a lower portion of the body. This structure constitutes structure for throttling the discharge of water through the lower discharge openings formed through the central portion of the body and the central portion of the body is rotatably supported from the inlet and outlet end portions of the body and includes torque developing blade structure for imparting rotation to the central portion of the body in response to the flow of water therethrough under pressure and out the water outlet at the outlet end portion of the body. The rotatable central portion of the body includes circumferentially and longitudinally spaced outwardly projecting brush bristles, whereby rotation of the central portion of the body relative to its opposite end portions while the cleaner is resting on the bottom of a pool will cause the bottom surface of the pool to be scrubbed by the brush bristles.
Inventors
- 👤 Lester M Proffit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:37
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/16; E04H4/1681; B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0417; B05B3/0429; B08; B08B; B08B1/00; B08B1/30; B08B1/32; B08B1/34
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
229 words
A pool cleaner for attachment to the discharge end of a flexible water supply hose disposed within a pool, said pool cleaner including an elongated hollow body defining a center axis and including opposite inlet and outlet end portions and a central portion disposed therebetween, said outlet end portion including water outlet means and said inlet end portion including water inlet means adapted for connection with the outlet end of said hose, said central portion of said body including discharge openings spaced thereabout for discharging water from within said central portion outwardly of the latter, and water flow throttling means disposed within said central portion and movable, by an imbalance of gravity forces acting thereon, to a position in a lower portion of said body to throttle the discharge of water from the lower discharge openings in said central portion, whereby the aggregate thrust forces acting on said body as a result of water being discharged from said discharge openings will be in a downward direction to thus maintain said cleaner in a position at least closely adjacent the bottom of the associated pool, said central portion of said body being journaled from said inlet end portion thereof, said body including rotary torque developing means functioning, in response to water being discharged from said body, to impart rotary motion of said central portion relative to said inlet end portion.
Claim 2
Dependent Claim
229 words
A pool cleaner for attachment to the discharge end of a flexible water supply hose disposed within a pool, said pool cleaner including an elongated hollow body defining a center axis and including opposite inlet and outlet end portions and a central portion disposed therebetween, said outlet end portion including water outlet means and said inlet end portion including water inlet means adapted for connection with the outlet end of said hose, said central portion of said body including discharge openings spaced thereabout for discharging water from within said central portion outwardly of the latter, and water flow throttling means disposed within said central portion and movable, by an imbalance of gravity forces acting thereon, to a position in a lower portion of said body to throttle the discharge of water from the lower discharge openings in said central portion, whereby the aggregate thrust forces acting on said body as a result of water being discharged from said discharge openings will be in a downward direction to thus maintain said cleaner in a position at least closely adjacent the bottom of the associated pool, said central portion of said body being journaled from said inlet end portion thereof, said body including rotary torque developing means functioning, in response to water being discharged from said body, to impart rotary motion of said central portion relative to said inlet end portion.
Claim 3
Dependent Claim
58 words
The combination of claim 1 wherein said water outlet means opens endwise outwardly of said outlet end portion along a path at least generally centered relative to the axis of rotation of said central portion, said rotary torque developing means comprising water blade means disposed in said body on said axis slightly upstream from said water outlet means.
Claim 4
Dependent Claim
15 words
The combination of claim 1 wherein said central portion includes generally radially outwardly projecting bristles.
Claim 5
Dependent Claim
24 words
The combination of claim 3 including a coiled body member disposed about said central portion, said bristles being carried by said coiled body member.
Claim 6
Dependent Claim
29 words
The combination of claim 4 wherein said coiled body member is stiff but flexible and resilient, and coiled about said central portion in at least slight frictional engagement therewith.
Claim 7
Dependent Claim
31 words
The combination of claim 1 wherein said outlet end portion is supported in fixed position relative to said central portion for rotation with the latter relative to said inlet end portion.
Claim 8
Dependent Claim
58 words
The combination of claim 6 wherein said water outlet means opens endwise outwardly of said outlet end portion along a path at least generally centered relative to the axis of rotation of said central portion, said rotary torque developing means comprising water blade means disposed in said body on said axis slightly upstream from said water outlet means.
Claim 9
Dependent Claim
15 words
The combination of claim 7 wherein said central portion including generally radially outwardly projecting bristles.
Claim 10
Dependent Claim
47 words
The combination of claim 8 including a coiled body member disposed about said central portion, said bristles being carried by said coiled body member, said coiled body member being stiff but flexible and resilient, and coiled about said central portion in at least slight frictional engagement therewith.
Claim 11
Dependent Claim
30 words
The combination of claim 1 wherein said central portion of said body and said inlet end portion include coacting means removably journaling said central portion from said inlet end portion.
Claim 12
Dependent Claim
148 words
A pool cleaner for attachment to the discharge end of a flexible water supply hose disposed within a pool, said pool cleaner including an elongated hollow body defining a center axis and including opposite inlet and outlet end portions, said hollow body including discharge openings spaced thereabout for discharging water from within said body outwardly of the latter, said body including outwardly projecting bristles spaced thereabout and longitudinally therealong, and water throttling means disposed within said body and movable, by an imbalance of gravity forces acting thereon, to a position to throttle the discharge of water from the lower discharge openings in said body, whereby the aggregate thrust forces acting on said body as a result of water being discharged from said discharge openings will be in a downward direction to thus maintain said cleaner in a position at least closely adjacent the bottom of the associated pool.
Claim 13
Dependent Claim
148 words
A pool cleaner for attachment to the discharge end of a flexible water supply hose disposed within a pool, said pool cleaner including an elongated hollow body defining a center axis and including opposite inlet and outlet end portions, said hollow body including discharge openings spaced thereabout for discharging water from within said body outwardly of the latter, said body including outwardly projecting bristles spaced thereabout and longitudinally therealong, and water throttling means disposed within said body and movable, by an imbalance of gravity forces acting thereon, to a position to throttle the discharge of water from the lower discharge openings in said body, whereby the aggregate thrust forces acting on said body as a result of water being discharged from said discharge openings will be in a downward direction to thus maintain said cleaner in a position at least closely adjacent the bottom of the associated pool.
Claim 14
Dependent Claim
223 words
A pool cleaner for attachment to the discharge end of a flexible water supply hose disposed within a pool, said pool cleaner including an elongated hollow body defining a center axis and including opposite inlet and outlet end portions, said hollow body, exclusive of said inlet end portion thereof being journaled from the latter for rotation about an axis generally coinciding with said center axis, the journaled portion of said body including outwardly projecting bristles spaced thereabout and longitudinally therealong and rotary torque developing means operative, in response to water flowing through said body and out the outlet end thereof, to impart rotary motion to said journaled portion relative to said inlet end portion, said journaled portion including discharge openings spaced thereabout for discharging water from within said journaled portion outwardly of the latter, and water flow throttling means disposed within said journaled portion and movable, by an imbalance of gravity forces acting thereon, to a position in a lower portion of said body to throttle the discharge of water from the lower discharge openings in said central portIon, whereby the aggregate thrust forces acting on said body as a result of water being discharged from said discharge openings will be in a downward direction to thus maintain said cleaner in a position at least closely adjacent the bottom of the associated pool.
Claim 15
Dependent Claim
223 words
A pool cleaner for attachment to the discharge end of a flexible water supply hose disposed within a pool, said pool cleaner including an elongated hollow body defining a center axis and including opposite inlet and outlet end portions, said hollow body, exclusive of said inlet end portion thereof being journaled from the latter for rotation about an axis generally coinciding with said center axis, the journaled portion of said body including outwardly projecting bristles spaced thereabout and longitudinally therealong and rotary torque developing means operative, in response to water flowing through said body and out the outlet end thereof, to impart rotary motion to said journaled portion relative to said inlet end portion, said journaled portion including discharge openings spaced thereabout for discharging water from within said journaled portion outwardly of the latter, and water flow throttling means disposed within said journaled portion and movable, by an imbalance of gravity forces acting thereon, to a position in a lower portion of said body to throttle the discharge of water from the lower discharge openings in said central portIon, whereby the aggregate thrust forces acting on said body as a result of water being discharged from said discharge openings will be in a downward direction to thus maintain said cleaner in a position at least closely adjacent the bottom of the associated pool.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |