Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Reexamination Certificate
2003-09-09
2004-10-19
Phillips, Charles E. (Department: 3751)
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
Reexamination Certificate
active
06804837
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to toilet plumbing. More specifically, the invention is a toilet bowl deodorizing mechanism that uses an external electric vacuum pump to draw air from the bowl into a ventilated area and out into the atmosphere by substantially sealing the gap between the lowered seat and the toilet bowl with a vinyl gasket.
2. Description of the Related Art
The related art of interest describes various toilet bowl odor eliminators, but none discloses the present invention that is simple, economical and effective in quickly removing the odor issuing from the toilet bowl while in use for fecal odor elimination. The relevant crowded art will be discussed in the order of perceived relevance to the present invention.
U.S. Pat. No. 3,763,505 issued on Oct. 9, 1973, to Joseph P. Zimmerman describes two embodiments of a toilet ventilation device comprising, in a first embodiment, a ventilator casing having a bottom hole resting on top of the flush tank and containing charcoal filters, a battery driven fan and a timer switch to exhaust the odor via the water feeding holes in the toilet bowl rim. In another embodiment, the ventilator casing rests on the floor, and a perforated ring or partial ring manifold under the toilet seat exhausts the noxious gas. The devices are distinguishable for requiring the ventilator casing adjacent the toilet bowl.
U.S. Pat. No. 6,052,837 issued on Apr. 25, 2000, to John A. Norton et al. describes a toilet ventilation system that moves air from within a toilet bowl and through a filter, or alternately, out of the building by an exhaust pipe. A seat assembly has an air channel defined by the lower surface of the seat. An air channel cover is removably held in place on the lower surface of the toilet covering the air channel. A bow-mounted base and enclosure is attached to the toilet bowl by standard mounting bolts. The seat and lid are pivotally carried by the bowl-mounted base. A reservoir with a drain opening prevents the passage of liquid into a fan and filter housing that is carried by the base and contains a fan powered by a direct current electrical system and an activated charcoal filter. The system is distinguishable for requiring the air filter and fan adjacent to the toilet bowl.
U.S. Pat. No. 5,819,324 issued on Oct. 13, 1998, to Ronnie D. Bianco describes a toilet ventilating device comprising a base mounted on the rim portion of a toilet bowl, and having a C-shaped vacuum member having a plurality of apertures superimposed on the inner periphery of the base. The vacuum member has a hollow handle and is connected to an exhaust hose and exhaust fan outside the room. The device is distinguishable for requiring a C-shaped exhaust member coupled to an external handle and a flexible hose.
U.S. Pat. No. 5,161,262 issued on Nov. 10, 1992, to Edwin G. Quaintance, Sr. describes an adjustable housing with two sections having neck portions for telescoping one section into the other section. Each section defines a wide, thin air inlet disposed adjacent the toilet bowl rim. In one section a battery pack, a timer circuit and on-off switches are included. The other section includes an activated charcoal filter and fan to draw foul air from both air inlets and returning the air to the ambient. The telescoping neck portions include a pair of sliding electric contacts to provide electricity to the fan motor. The apparatus is distinguishable for requiring a limited adjustable housing and exhausting the deodorized air into the ambient by the toilet bowl.
U.S. Pat. No. 1,342,716 issued on Jun. 8, 1920, to Edwin A. Johnston describes a toilet closet ventilator system comprising an exhaust motor and fan mounted in a pipe passing through the closet top and extending into the water and covering the overflow pipe. A switch box located below the closet or flush tank is actuated by a plunger connection to an arm from the pivot pin of the seat. The closet ventilator system is distinguishable for requiring a motor and exhaust fan adjacent the closet and its exhaust pipe inside the closet.
U.S. Pat. No. 2,105,794 issued on Jan. 18, 1938, to Charles C. Norris describes a combination closet tank cover and ventilator system comprising a blower unit integrated on top of the closet tank and having a circular fan to exhaust through a wall. The system is distinguishable for requiring the fan on top of the closet tank.
U.S. Pat. No. 2,279,789 issued on Apr. 14, 1942, to Henry Jentzer describes a toilet bowl ventilator system comprising an oval motor and fan in the vertical atmosphere vent pipe attached to the double elbow section fitting inside a semi-spherical cup of a water discharge (flush) pipe. The toilet seat has a switch underneath connected to house current, and activated by the weight of the user. The system is distinguishable for requiring a seat switch and a motor in the vertical air exhaust pipe.
U.S. Pat. No. 2,985,890 issued on May 30, 1961, to Harry Baither describes a toilet bowl ventilating apparatus comprising a water trap inside the flush tank, and a suction fan and motor housed in a casing secured to the rear wall of the flush tank. The apparatus is distinguishable for requiring the fan inside the flush tank.
U.S. Pat. No. 3,192,539 issued on Jul. 6, 1965, to William L. Martz describes ventilators for water closets, kitchens and the like. The ventilating -pipe extends from the overflow pipe inside the water closet to a vertical pipe having an exhaust fan in the attic to exit at the roof. The system is distinguishable for requiring a direct conduit from the overflow pipe to the roof.
U.S. Pat. No. 3,295,147 issued on Jan. 3, 1967, to Gustave Meyer describes a toilet stool ventilating device comprising a pneumatic pressure switch under a toilet seat with its hose connected to a large diameter hose connecting a flattened intake nozzle overlapping the rim of the toilet bowl to a wall connection containing an exhaust fan. The device is distinguishable for requiring a pneumatic pressure switch under the toilet seat and an overlapping toilet bowl rim exhaust hose.
U.S. Pat. No. 3,366,979 issued on Feb. 6, 1968, to Melvin I. Johnston describes a portable deodorizing apparatus for use on commodes comprising an actuating bulb under the seat connected by conduit to a box on the floor containing an exhaust fan, electric motor and two filtering sheets of charcoal. A plastic nozzle overlapping and fastened to the bowl rim is also connected to the box to exhaust the odoriferous gas to the box. The apparatus is distinguishable for containing the gas with in
U.S. Pat. No. 3,495,282 issued on Feb. 17, 1970, to Allaird B. Taggart describes a toilet bowl and exhaust device comprising a blower-equipped ventilating conduit-connected at its discharge end to a venting stack and at its intake end to an exhaust pipe within the confines of the tank rising to an inlet point over the normal water level in the tank. The lid of the tank has a sealing gasket that makes the upper part of the tank airtight. The device is distinguishable for requiring the venting from inside the flush tank and sealing the flush tank.
U.S. Pat. No. 3,887,948 issued on Jun. 10, 1975, to Robin H. Stamper describes a conditioning pack device in
FIG. 5
for deodorizing and/or odorizing air comprising a deodorizer pack containing a battery driving a fan, wherein the pack is attached to a pipe and duct attached under the toilet seat. The on/off switch is included inside the duct with the electrical wire leading to the external pack. A molded seal has two ends leading to the duct with gas inlets. The system requires a molded seal under the toilet seat with presumably a pressure switch to turn on the small fan inside the pack device containing also an activated carbon filter. The system is distinguishable for requiring a fan in the separate deodorizing pack.
U.S. Pat. No. 3,887,949 issued on Jun. 10, 1975, to John S. Osmond describes a ventilated seating for a water closet comprising an adapter in the form of a blower housing affixed to the toi
Litman Richard C.
Phillips Charles E.
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