US2759197A

US2759197A - Ventilator for water closet

Info

Publication number: US2759197A
Application number: US399309A
Authority: US
Inventors: Charles J Majauskas
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-12-21
Filing date: 1953-12-21
Publication date: 1956-08-21
Anticipated expiration: 1973-08-21

Description

1955 c. J. MAJAusKAs VENTILATOR FOR WATER CLOSET 3 Sheets-Sheet l Fi led Dec. 21, 1953 INVENTOR' &arie; Jfi czww m ym z w ATTORNEYS.

1956 c. J. MAJAUSKAS VENTILATOR FOR WATER CLOSET 3 Sheets-Sheet 2 ?i led Dec. 21, 1953 I u I i Aug. 21, 1956 c. J. MAJAUSKAS &

VENTILATOR FOR WATER CLOSET Filed Dec. 21, 1953 3 Sheets-Sheet 3 IN V EN TOR.

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United States Patent O VENTILATOR FOR WATER CLOSET Charles J. Majauskas, Chicago, Ill.

Application December 21, 1953, Serial No. 399,309

4 Claims. (CI. 4-213) This invention relates to Ventilators for water closets and is an improvement on the apparatus disclosed in my Patent No. 2,639,440, issued May 26, 1953.

My prior patent discloses a system for ventilating a water closet, the functioning of which is intiated when the seat ring is forced down and the closet is put in use. Recognizing, however, that is is often desirable and convenient to also close the cover and use the closet bowl as a seat, my present invention provides a means for rendering the ventilating system inoperative when both the seat ring and cover are forced down to the seat position.

The main objects of this invention, therefore, are to provide an improved ventilator for water closets, the iunctioning of which is initiated at the time the closet is put in use and the functioning of which is prevented when the cover is also lowered and the closet is used as a seat, and to provide an improved attractive form of arrangement of a seat mounting for housing the switches for controlling the operation of the ventilator.

In the particular embodiment of this invention, shown in the accompanying drawings:

Fig. 1 is a side elevation of this improved water closet ventilator shown mounted on a wall adjacent and connected to a water closet bowl and flush tank;

Fig. 2 is an enlarged cross-sectional detail of the safety valve fitting adapted for interposition in the flush water pipe and which prevents a surge of the fiushing water from reaching to the blower;

Fig. 3 is a perspective view of the valve member for the same removed from the fitting;

Fig. 4 is a section through the ventilator housing taken on the plane of the line 4-4 of Fig. l, showing in elevation the motor-driven blower and the solenoid operated vent valve;

Fig. 5 is a transverse sectional elevation of the same, taken on the line 5--S of Fg. 4;

Fig. 6 is an enlarged cross-sectional elevation of the seat and cover hinge mountings, as viewed from the plane of the line 6-6 of Fig. 1;

Fig. 7 is a plan view of the seat and cover hinge mountngs;

Fig. 8 is an enlarged side elevation of the same, taken on the line 8-8 of Fig. 7; and

Fig. 9 is an enlarged cross-sectional deta l of the mountng post including the switchng mechanism of the present invention, as taken on the plane of the line 9-9 of Fig. 7.

An improved water closet ventilator constructed in accordance with this invention comprises the ventilator unit 7, a safety valve fitting S, and a seat and cover controlled switch means 9, designed for attachment and operation to effect the ventilation of a water closet bowl 10 to the conventional vent stack 11 at the time the closet is put into use.

The ventilator unit 7 comprises a housing 12 Wherein is mounted a blower 13, driven by a motor 14, and a vent valve fitting 15, the valve 16 of which is actuated by a solenoid 17.

r' A C@ The housing 12, as heren shown, is of rectangular form. Its open top permits the insertion and appropriate location of the parts just described. A hood 18 telescopes with the vertical walls of the main part of the housing 12 to form a closure for the open top thereof. The housing is provided with suitably placed apertures through which fastening means may be inserted for attaching the unit to a wall 69.

The blower 13, preferably of the impeller type, is directly mounted on the motor 14, which is supported on a base spaced above the bottom of the housing 12. The blower 13 has its exhaust 20 extending exteriorly of the housing 12 for connection with the vent stack 11.

The motor 14 is a conventonal, fractional, horsepower motor adapted for small units of this kind. It has associated therewith a condenser 21 interposed between the wires 22 to a source of electrical power and the wires 23 to the switch mecham'sm 9. The wires 23 enter the housing 12 through a section of Conduit Secured to the housing 12 by a fastening means 23.1.

The vent valve fitting 15 is directly connected to the intake 24 of the blower 13 and has a nipple 25 extending exteriorly of the housing 12 which is connected to the safety valve fitting 8 by a pipe 26. The valve 16 is arranged for vertical movement in the fitting 15 so that gravity normally urges the valve head 27 to rest on the seat 28 thereby closing communication between the bowl lt) and the vent stack 11 when the motor 14 is idle.

The solenoid 17 is located in the housing 12 below the valve fitting 15, and is energized concurrently with the blower motor 14 to open valve 16. Its armature 29 is connected to a bell crank lever 30 pivoted at 31 and attached to a stern 32 of the valve 16.

The safety valve fitting 8 is of a Construction substantially such as shown in Patent No. 2,449,l34. This fitting is approximately T-shaped with a main part 33 and a stem part 34. The main part 33 is threaded so that it may be Conveniently inserted in the flush water pipe 35 which leads from a source of Water to the flush water inlet 36 for the closet bowl 10. This source of flush water may be either a tank 37 such as shown in Figure l, or it may be a valve-controlled water pressure source, such as is commonly used for water closets, particularly in large buildings and institutons.

The valve 33 comprises a disl'-shaped cap part 39 and a lever 40 Secured in axially spaced relationship on opposite sides of a hinge pin 41. The hinge pin 41 mounts the valve 33 so that the cap part 39 is disposed to close the end of the port 42 in the fitting stem port 34 and locates the lever 4@ in the main part 33. A suitable gasket 39.1 is secured to the cap 39 to seal the port 42. A weight 43 on the back of the cap part 39 normally holds the valve 38 with the cap part 39 retracted from the port 42, whereby communication is normally open from the closet bowl iii through the port 42, the connecting pipe 26 and the vent valve fitting 15. The lever 40 is so shaped and dimensioned that when the closet is fiushed the surge of water through the fitting 33 will cause the lever 40 to Shift the cap 39 to close the port 42, preventing any back-flow of water up through the pipe 26 into the fitting 15 from whence the water might reach the mechanism in the housing 12. The stern part 34 of the fitting 8 has an inspection pot 44 in which is Secured a thread-ed plug 45 (see Fig. 1).

The switch means 9 comprises a pair of

posts

46 and 47, a pair of

cover hinge brackets

71 and 72 telescoped over the shaft 49, and a pair of seat hinge brackets 48 connected at the ends of a shaft 49, supported in bearings 50 ofiset from the

respective posts

46 and 47.

The

posts

46 and 47, are similar, except that one is right-hand and the other is left hand, as most clearly shown in Fig. 6. Each is provided with a chambered to connect said sets of electrical contacts in series in said control circuit.

2. The combination of a water closet bowl having a seat and a cover, an electrically operated ventilator, a control circuit for said ventilator, a pair of posts mounte'l on said bowl and having chambered hub parts otlset from channeled stems extending through a rim portion of said bowl, plungers within said hubs having pins eX- tending downwardly below said hubs, seat hinges pivotally Secured to said posts, tongues on said hinges normally contacting the lower ends of said pins, springs disposed within said hubs and urging said pins downwardly to partially raise the bowl seat, and insulating block mountng a pair of spaced electrical contacts and disposed within the upper part of the hub of one of said posts, an insulaing member carried by said plunger in said one post and adapted to close said contacts when said seat is depressed against the action of said springs, an insulating block mounting a pair of normally closed electrical contacts and disposed within the upper part of the hub of the said other post, said other post being formed with a cavity and a vertical channel connecting said cavity and said upper part of the hub of said other post, a switch pin disposed in said channel and adapted to be forced upwardly to open said normally closed contact, pin actuating means adapted to be inserted in said cavity, means carried by one of said cover hinges adapted to engage said actuating means and force said switch pin upwardly when said cover is depressed, and wires extending through the channeled stems of said posts to connect said sets of electrical contacts in series in said control circuit.

3. The combination of a water closet bowl having a seat 'and a cover, an electrically operated ventilator, a control circut for said ventilator, :a pair of posts mounted on said bowl and having chambered hub parts ofset from channeled stems extending through a rim portion of said bowl, plungers within said hubs having pins extending downwardly below said hubs, seat hinges pivotally secured to said posts, tongues on said hinges normally contacting the lower ends of said pins, springs disposed within said hubs and urging said pins downwardly to partially raise the bowl seat, an insulating block mounting 'a pair of spaced electrical contacts and disposed within the upper part of the hub of one of said posts, an insulatng member carried by said plunger -n said one post and adapted to close said contacts when said seat is depressed against the action of said springs, an insulating block mounting a pair of normally closed electrical contacts and disposed within the upper part of the hub of the said other post, said other post being formed With a cavity and a vertical channel connecting said cavity and said upper part of the hub of said other post, switch actuatjng means disposed in said channel and 'adapted to open said normally closed contact, first means mounted in said cavity and adapted to control said switch actuating means, second means carried by one of said cover hinges 'adapted to engage said first means to cause said switch actnating means to open said normally closed contact When said cover is depressed, and wires extending through the channeled stems of said posts to connectsaid sets of electrical contacts in series in said control circuit.

4. The combination of a water closet bowl having a seat and a cover, an electrically operated ventlator, a control circuit for said ventil'ator, a pair of posts mounted on said bowl and having chambered hub parts ofiset from channeled stems extending through a rim portion of said bowl, seat and cover hinges pivotally Secured to said posts, a normally open switch in said circuit, said switch being mounted in one of said chambered posts and being adapted to close said circuit and actuate said ventilator when said seat is lowered, an insulatng block mounting a pair of normally closed electrical contacts and disposed within the upper part of the hub of the said other post, said other post being formed with a cavity and a verticml channel connecting said cavity and said upper part of the hub of said other post, a switch pin -disposed in said channel and adapted to be forced upwardly to open said normally closed contact, a plug 'adapted to be inserted in said cavity, said plug having a central bore extending from the said cavity to a pocket formed adjacent the outer end of said plug, a camming bar adapted to seat in said pocket and extencling into said cavity to engage said switch pin, means carried by one of said cover hinges for causing said cammjng bar to pivot about said pocket 'and force said switch pin upwardly when said cover is depressed, and Wires extending through the channeled stems of said posts to connect said sets of electrical contacts in series in said control circuit.

References Cited in the file of this patent UNITED STATES PATENTS 2,32G,O Briscoe et al. May 25, 1943 2,610,328 Miller Sept. 16, 1952 2,639,440 Majauskas May 26, 1953