High rise tower sanitary service system

Details High rise tower sanitary service system High rise tower sanitary service system

2006-10-24

2006-10-24

Lee, Kevin (Department: 3753)

Fluid handling

Processes

Involving pressure control

C137S205000, C137S357000

Reexamination Certificate

active

07124769

ABSTRACT:
A system and method for servicing restrooms on the upper floors of a high rise building. The system is comprised of sections of hoses that are interconnected by valves, each valve configured to provide a user with the ability to selectively shut off the flow of material in a vertical or horizontal direction. These vacuum hoses are then connected to a liquid cooled pump, which is connected to a vacuum tank. The system operates by selectively opening and closing the vertical and horizontal valves to focus vacuum force in areas to be cleaned and prevent vacuum in non-desired areas.

REFERENCES:
patent: 3651524 (1972-03-01), Bengtsson et al.
patent: 3853140 (1974-12-01), Gorman
patent: 4129906 (1978-12-01), Ohringer
patent: 4246925 (1981-01-01), Oldfelt
patent: 4865631 (1989-09-01), Stroby et al.
patent: 5937888 (1999-08-01), McKiernan et al.
patent: 6092549 (2000-07-01), Eriksson

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