Patent EP0814425A2 successfully refreshed from Google Patents.
US4129904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool cleaner
Assignee: Individual
•
Filing: 1977-11-14
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Granted: 1978-12-19
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Expires: 1997-11-14
Abstract
Abstract An automatic swimming pool cleaner has a submergible transporter comprising a three piece assemblage having a rotatable intermediate fender wheel to engage the pool side walls and having generally pie-shaped fender members disposed above and below the fender wheel. The outer fender members are provided with pool bottom engaging wheels and with stabilizer fins and are connected to a water supply hose by a swivel connection.
Inventors
- 👤 Andrew L. Pansini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:35
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/16; E04H4/1681
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
In a swimming pool cleaner, a carrier and means associated therewith operable to drive said carrier in a submerged condition above the bottom of a pool, said carrier comprising a wheel member, a wheel carrier and wheel fender member disposed in closely adjacent and overlying relation to said wheel member inwardly of the periphery thereof, said carrier and fender member having a leading end and a trailing end, said wheel member being attached to said carrier and fender member for substantially free rotational movement relative thereto, a guidance roller element carried at the leading end of said carrier and fender member, and guidance fin means attached to the trailing end of said carrier and fender member.
Claim 2
Dependent Claim
116 words
In a swimming pool cleaner, a carrier and means associated therewith operable to drive said carrier in a submerged condition above the bottom of a pool, said carrier comprising a wheel member, a wheel carrier and wheel fender member disposed in closely adjacent and overlying relation to said wheel member inwardly of the periphery thereof, said carrier and fender member having a leading end and a trailing end, said wheel member being attached to said carrier and fender member for substantially free rotational movement relative thereto, a guidance roller element carried at the leading end of said carrier and fender member, and guidance fin means attached to the trailing end of said carrier and fender member.
Claim 3
Dependent Claim
30 words
In a swimming pool cleaner, the carrier of claim 1, said carrier and fender member being generally pie-shaped, being narrow at its leading end and wide at its trailing end.
Claim 4
Dependent Claim
93 words
In a swimming pool cleaner, the carrier of claim 1 further comprising a second alike wheel carrier and wheel fender member disposed in closely adjacent and underlying relation to said wheel member inwardly of the periphery thereof, said second member having a leading end and a trailing end, said wheel member being also attached to said second member for substantially free rotational movement relative thereto, and a guidance roller carried at the leading end of said second member, said guidance fin means being also attached to the trailing end of said second member.
Claim 5
Dependent Claim
30 words
In a swimming pool cleaner, the carrier of claim 3, said carrier and fender members being generally pie-shaped, being narrow at their leading ends and wide at their trailing ends.
Claim 6
Dependent Claim
58 words
In a swimming pool cleaner, the carrier of claim 3, said guidance fin means comprising a pair of spaced, vertically disposed fin members which extend from above said first-mentioned carrier and fender member to below said second member, and a horizontally disposed stabilizer member interconnecting said fin members and disposed substantially in the plane of said wheel member.
Claim 7
Dependent Claim
29 words
In a swimming pool cleaner, the carrier of claim 5, said first-mentioned means including a jet drive unit mounted on and directed rearwardly from said horizonatally disposed stabilizer member.
Claim 8
Dependent Claim
53 words
In combination, the carrier of claim 6, and a flexible water supply hose connected in delivery relation to said jet unit, said hose having at spaced intervals jet drive units each operable to pull the adjacent upstream portion of the supply hose and to push the adjacent downstream portion of the supply hose.
Claim 9
Dependent Claim
41 words
The combination of claim 7 further including a swivel connection between the carrier and supply hose whereby the carrier is free to rotate about the longitudinal axis of the downstream end of the supply hose to which the carrier is connected.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |