Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1986-08-15
1989-05-09
Hornsby, Harvey C.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134111, 134166R, 134172, 210340, B08B 302
Patent
active
048286265
ABSTRACT:
A cleaning system for a swimming pool which includes a mobile cleaning unit and/or stationary cleaning heads. Manual and automatic modes are included. The system is suitable for both gunnite and polymer liner pools, spas and the like. No energy is required other than that normally required for circulation of water through the conventional filtration apparatus.
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patent: 3972239 (1976-08-01), Henkin et al.
patent: 4188673 (1980-02-01), Carter
patent: 4589986 (1986-05-01), Greskovics et al.
patent: 4592378 (1986-06-01), Frentzgl
patent: 4606820 (1986-08-01), Rea et al.
Crystal Pools, Inc.
Hornsby Harvey C.
Stinson Frankie L.
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