US4240174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained mobile pool cleaning apparatus
Assignee: Individual
•
Filing: 1979-07-30
•
Granted: 1980-12-23
•
Expires: 1999-07-30
Abstract
Abstract A mobile cleaning apparatus for swimming pools having a self-contained pump, filter and driving motor mounted on a hand wheeled truck and housed in a waterproof enclosure which is easily opened for filter cleaning and motor and pump repairs, if necessary, to assure a long service life of the apparatus.
Inventors
- 👤 James F. Thiem
- 👤 Jeffrey L. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:11
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; E; E04; E04H; E04H4/00; E04H4/14; E04H4/16; E04H4/1618; E04H4/1636
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
296 words
A mobile self-contained vacuum cleaning apparatus for pools comprising: a hand truck, a housing mounted on said truck, said housing defining inlet and outlet ports, a filter basket mounted in said housing for receiving water from said inlet port, a pump for drawing water through said inlet port and said basket into said housing, a first reservoir arranged in said housing to extend longitudinally thereof for receiving water from said pump, a second reservoir in said housing extending laterally thereof and connected to said outlet port, a plurality of filter cartridges mounted in said housing to extend longitudinally thereof in a substantially parallel arrangement for simultaneously receiving water from said first reservoir under pressure of said pump along substantially their full lengths, filtering it and passing the water out therefrom through common ends into said second reservoir and then through said outlet port, motor means for driving said pump, a flexible hose connected to said inlet port for drawing water into its outer end from a pool, a sweeper head, said sweeper head comprising an elongated resilient body having a plurality of pairs of rotatably mounted wheels for moving the sweeper head over the pool surface, flexible means for connecting said other end of said hose to said sweeper head, said flexible means comprising at least a pair of passageways spacedly connected to said sweeper head for drawing water through said sweeper head and into said hose from at least a pair of spaced points along said sweeper head, whereby said passageways deflect when the resilient body of said sweeper head deflects during movement to maintain a fluid-tight connection between said sweeper head and said connector, and a wand hingedly connectable to said sweeper head for moving it along the bottom and walls of a pool.
Claim 2
Dependent Claim
296 words
A mobile self-contained vacuum cleaning apparatus for pools comprising: a hand truck, a housing mounted on said truck, said housing defining inlet and outlet ports, a filter basket mounted in said housing for receiving water from said inlet port, a pump for drawing water through said inlet port and said basket into said housing, a first reservoir arranged in said housing to extend longitudinally thereof for receiving water from said pump, a second reservoir in said housing extending laterally thereof and connected to said outlet port, a plurality of filter cartridges mounted in said housing to extend longitudinally thereof in a substantially parallel arrangement for simultaneously receiving water from said first reservoir under pressure of said pump along substantially their full lengths, filtering it and passing the water out therefrom through common ends into said second reservoir and then through said outlet port, motor means for driving said pump, a flexible hose connected to said inlet port for drawing water into its outer end from a pool, a sweeper head, said sweeper head comprising an elongated resilient body having a plurality of pairs of rotatably mounted wheels for moving the sweeper head over the pool surface, flexible means for connecting said other end of said hose to said sweeper head, said flexible means comprising at least a pair of passageways spacedly connected to said sweeper head for drawing water through said sweeper head and into said hose from at least a pair of spaced points along said sweeper head, whereby said passageways deflect when the resilient body of said sweeper head deflects during movement to maintain a fluid-tight connection between said sweeper head and said connector, and a wand hingedly connectable to said sweeper head for moving it along the bottom and walls of a pool.
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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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |