Baths – closets – sinks – and spittoons – Tubs – Means for agitating or circulating water in a tub
Reexamination Certificate
2003-11-04
2004-10-26
Huson, Gregory L. (Department: 3751)
Baths, closets, sinks, and spittoons
Tubs
Means for agitating or circulating water in a tub
C004S546000, C004S559000
Reexamination Certificate
active
06807689
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to bathtubs and, more specifically, to a kit for converting a whirlpool bathtub into a bathtub for the purpose of eliminating the potential for bacterial exposure to the user of the whirlpool by sealing the various ports. The kit is comprised of O-rings, a test plug that is expanded within the pump inlet pipe and covers. The components are used in replacement of the original jets, air inlet, air switch and an inlet cover.
2. Description of the Prior Art
There are other fittings designed for whirlpool tubs. Typical of these is U.S. Pat. No. 3,890,655 issued to Mathis on Jun. 24, 1975.
Another patent was issued to Doerr, et al. on Oct. 19, 1976 as U.S. Pat. No. 3,986,217. Yet another U.S. Pat. No. 4,359,790 was issued to Chalberg on Nov. 23, 1982 and still yet another was issued on Nov. 22, 1983 to Reynoso as U.S. Pat. No. 4,416,030.
Another patent was issued to James on Jan. 14, 1986 as U.S. Pat. No. 4,563,781. Yet another U.S. Pat. No. 4,901,926 was issued to Klotzbach on Feb. 20, 1990. Another was issued to Klotzbach on May 7, 1991 as U.S. Pat. No. 5,012,535 and still yet another was issued on May 16, 1995 to Booth as U.S. Pat. No. 5,414,878.
Another patent was issued to Booth on Dec. 24, 1996 as U.S. Pat. No. 5,587,023. Yet another U.S. Pat. No. 6,395,167 was issued to Mattson, Jr., et al. on May 28, 2002.
U.S. Pat. No. 3,890,655
Inventor: Cleo D. Mathis
Issued: Jun. 24, 1975
A whirlpool jet outlet for bathtubs, therapy tanks, swimming pools and the like is disclosed. A housing has a hollow interior chamber. A water inlet supplying water under pressure is connected through one side of the housing to the inner end of the chamber. A Venturi air inlet is connected to the inner end of the chamber to speed the flow of water through and out of the chamber. A water outlet is screw threadedly mounted in the front of the chamber. The housing extends through an opening in the side of the tub, the water outlet being substantially flush with the inside of the tub. The wall of the tub is gripped between the water outlet and the housing. A jet outlet control is mounted for rotation by a coin or the like within the water outlet to control the direction of water flow into the tub.
U.S. Pat. No. 3,986,217
Inventor: John D. Doerr, et al.
Issued: Oct. 19, 1976
A whirlpool bath device having a valve assembly including a concentric ring and cap for manual control of the water inlet pressure and the flow of air entrained in the water, the cap being spring loaded to afford pressure relief and prevent breakage. The water and entrained air emerge into the tub through a discharge outlet having an adjustable and wear-compensating nozzle provided with a dished flange engageable by the foot of the user for controlling the direction of the output flow through the nozzle.
U.S. Pat. No. 4,359,790
Inventor: Philip E. Chalberg
Issued: Nov. 23, 1982
A suction outlet assembly providing a path through which water within a whirlpool bath may be pumped out for recirculation. The assembly comprises three principal components, namely, an elbow structure which includes an integral flange and threaded pipe for protruding through a suitable orifice in the wall of the whirlpool bathtub into the interior of the tub; a locking ring having a matching threaded annular surface for securing the elbow structure against the tub wall by tightening the locking ring from the readily accessible interior side of the tub wall; and a suction cover which is designed to engage the locking ring in a fixed spaced-apart relation to provide a finished aesthetically appealing appearance to the assembly while providing safe multiple exit paths to the water flowing therethrough. These three components of the present invention are of unique but simple structure which may be manufactured from molded plastic. The assembly may be readily installed in a whirlpool bathtub with only limited access to the tub exterior immediately adjacent the orifice through which the assembly protrudes. The assembly requires only a minimum fixed volume adjacent the tub exterior surface to accommodate the elbow structure of the invention.
U.S. Pat. No. 4,416,030
Inventor: Arturo S. Reynoso
Issued: Nov. 22, 1983
An improved more compact type of fully adjustable spa jet water aerator is provided which is simple, inexpensive, durable, easy to install and use and which features easy separate adjustment of water and air flow therethrough. The aerator can be secured within a spa wall with the exit nozzle and controls readily accessible from within the spa. The aerator comprises a molded unitary housing defining an elongated passageway with water and air conduits disposed in stacked relation on the same side of the passageway to conserve space. The passageway extends to the front of the housing. The conducts have openings communicating with the passageway and a concentric pair of sleeves are threaded into the passageway and manually adjustable to align apertures therein with the conduit openings to control the air and water flow into the passageway. Cylindrical preferably ridged seals with alignable apertures are disposed over the rear ends of the sleeves adjacent the sleeve apertures to prevent fluid leakage. The inner sleeve defines an aerating chamber, and a replaceable flow reducer cylinder is disposed adjacent thereto in the inner sleeve.
U.S. Pat. No. 4,563,781
Inventor: David R. James
Issued: Jan. 14, 1986
A method of disinfecting the circulating system of a whirlpool bath tub installation comprising blanking off or capping a nozzle or nozzles of the bath tub in such manner that a circulating pump and the nozzle(s) together with associated pipework form a closed path. A small supply of disinfecting solution is connected through a valve to the closed path around which the disinfectant solution is circulated by the pump during a disinfection period in order to disinfect the pump, nozzle(s) and associated pipework. A whirlpool bath tub which incorporates a nozzle or nozzles which can be blanked off or capped, thereby providing a closed path and allowing disinfection thereof, by the foregoing method. A whirlpool bath tub installation comprises a tub, nozzles which can be capped, and a disinfectant supply tank. The valve is operable either to connect the pump to circulate water from the tub through the nozzles to which air is fed in the usual manner during bathing or, with the nozzles capped, to circulate disinfectant solution in a closed path which includes the supply tank, nozzles and associated pipework.
U.S. Pat. No. 4,901,926
Inventor: Manfred Klotzbach
Issued: Feb. 20, 1990
A tub including a fluid system has a pump which includes a suction side and a pressure side; a nozzle for introducing a water-and-air mixture into the tub; the nozzle having a nozzle portion; a pressure line connecting the pressure side of the pump with the nozzle portion; a suction opening provided in a bottom region of the tub; and a suction line connecting the suction side of the pump with the suction opening. The fluid system further has a valve provided in the nozzle portion for cutting off fluid flow to the tub; an overflow line having a closable vent opening and being coupled to the suction side of the pump; a device for selectively allowing or blocking fluid communication between the overflow line and the suction line of the pump; and a supply source for introducing a cleaning agent at a location upstream of the nozzle as viewed in a direction of fluid flow therethrough.
U.S. Pat. No. 5,012,535
Inventor: Manfred Klotzbach
Issued: May 7, 1991
A tub including a fluid system has a pump which includes a suction side and a pressure side; a nozzle for introducing a water-and-air mixture into the tub; the nozzle having a nozzle portion; a pressure line connecting the pressure side of the pump with the nozzle portion; a suction opening provided in a bottom region of the tub; and a suction line connecting the suction side of the pump with the suction opening. The fluid system further has a valve provided
Royko James Andrew
Royko Mary Alice
Huson Gregory L.
Kroll Michael I.
Le Huyen
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