Water delivery assembly for cleaning swimming pools
AssigneeSally Ghiz
InventorJohn M. Goettl
Life of this patent
Estimating the term…
Abstract
This disclosure relates to apparatus for cleaning swimming pools, incorporating intermittent pop-up jet nozzles, the nozzles being adapted to intermittently rotate and project cleaning jets of water adjacent the inner surface of the pools. Wear and tear on the nozzle housing and related parts is minimized by use of a water delivery assembly in which the stop means for arresting upward movement of the nozzle are located in the lower part of the housing, thus eliminating bending moment of stress force against the housing and related parts. The inclusion of a retainer or cage within the housing provides other improvements in the operation of the water delivery assembly.
Claims13
A water delivery assembly for cleaning the inner surfaces of a swimming pool, said assembly comprising:
- inlet pipe means for introducing water under pressure into said pool,
- a housing in fluid communication with said inlet pipe means, said housing having an outer open end communicating with the interior of said swimming pool and an inner open end fixedly attached to said inlet pipe;
- a water delivery head retainer removably locked to the interior of said housing;
- a water delivery head comprising a nozzle and a stem portion attached thereto, said nozzle having at least one water aperture therein to project a pressurized stream of water in adjacent parallel and scrubbing relation to the inner surface of said pool, said delivery head being mounted in said retainer and adapted for reciprocal motion therewithin to an extended operative position and a retracted inoperative position;
- said water delivery head responsive to the application of pressurized water to said housing for extending to said extended operative position;
- said head also responsive to the removal of pressure from the water in said housing for retraction to said retracted inoperative position;
- annular shoulder means located at the lower end of the stem portion of said delivery head;
- and stop means located on the interior of said housing, cooperating with said annular shoulder means to provide the upper limit of extension of said delivery head;
- said stop means being located in the bottom part of said housing and adjacent the point where the housing is attached to said inlet pipe, whereby the stop impact caused at said point produces minimum bending moment of stress force on said housing.
A water delivery assembly for cleaning the inner surfaces of a swimming pool, said assembly comprising:
- inlet pipe means for introducing water under pressure into said pool,
- a housing in fluid communication with said inlet pipe means, said housing having an outer open end communicating with the interior of said swimming pool and an inner open end fixedly attached to said inlet pipe below the surface of said pool;
- a water delivery retainer removably locked to the interior of said housing;
- a rotatable water delivery head comprising a nozzle and a stem portion, said nozzle having at least one water aperture therein to project a pressurized stream of water in adjacent parallel and scrubbing relation to the inner surface of said pool, said delivery head being mounted in said retainer and adapted for reciprocal motion therewithin to an extended operative position and a retracted inoperative position, said delivery head also adapted for limited random rotation only when positioned between said extended operative position and said retracted inoperative position;
- said water delivery head responsive to the application of pressurized water to said housing for extending to said extended operative position;
- said head also responsive to the removal of pressure from the water in said housing for retraction to said retracted inoperative position;
- means responsive to the application of pressurized water to said housing for rotating said delivery head a random angular distance during movement between its retracted inoperative position and extended operative position;
- annular shoulder means located at the lower end of the stem portion of said delivery head;
- and stop means located on the interior of said housing, cooperating with said annular shoulder means to provide the upper limit of extension of said delivery head;
- said stop means being located adjacent the point where the housing is attached to said inlet pipe, whereby the stop impact at said point produces minimum bending moment of stress force on said housing.
Dependencies are inferred from the claim text.