US3769640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser
Assignee: Castronovo & Edwards Co
•
Filing: 1971-03-18
•
Granted: 1973-11-06
•
Expires: 1991-03-18
Abstract
Abstract An automatic device of the form of a dispenser adapted to be placed in the water tank of a toilet is provided. The dispenser includes an extensible hanger strap which is conveniently stored in folded condition in a chamber contained within the dispenser and which may be extended for use and conformed over the top edge of a toilet tank in order to suspend the dispenser in an operative position within the water contained in the tank. The dispenser includes a dispenser top which is snap-fitted to a dispenser bottom in the form of a cup-shaped member adapted to contain therein a cake of disinfecting and deodorizing cleaner. The normal flushing action of the toilet automatically dispenses a metered amount of dissolved cleaner into the water tank whereupon it mixes with the tank water and is ejected therewith into the toilet bowl to perform its disinfecting, deodoring, and cleaning function.
Inventors
- 👤 R Castronovo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/02; E03D9/03; E03D9/033; E03D9/038
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
225 words
An Automatic dispenser for metering a finite amount of dissolved soluble substance into a tank of fluid containing said dispenser, said dispenser comprising a body having an upper, top portion and a lower, bottom portion, said lower portion having an open lower chamber therein for containing said soluble substance, said upper portion mounted on said lower portion so as to close said lower chamber, said upper portion having a chamber means therein, fluid-level responsive means for automatically metering said finite amount of dissolved soluble substance defined by the volume of said chamber means from said chamber means to the exterior of said body in response to a change in fluid level of the fluid medium within which the dispenser is used, and hanger means comprising an elongated hanger strap of thin, flexible material which retains a shape to which it may be deformed, thereby enabling said hanger strap to be conformed over a support structure, on said tank to support said body, a storage chamber carried by the upper portion of said body, said hanger strap chamber, stored substantially within said storage chamber said storage chamber comprising a means for fastening one end of said hanger strap to said body, the other end of which hanger strap is extendible from said storage chamber to support said body in its operative position within said fluid medium.
Claim 2
Dependent Claim
225 words
An Automatic dispenser for metering a finite amount of dissolved soluble substance into a tank of fluid containing said dispenser, said dispenser comprising a body having an upper, top portion and a lower, bottom portion, said lower portion having an open lower chamber therein for containing said soluble substance, said upper portion mounted on said lower portion so as to close said lower chamber, said upper portion having a chamber means therein, fluid-level responsive means for automatically metering said finite amount of dissolved soluble substance defined by the volume of said chamber means from said chamber means to the exterior of said body in response to a change in fluid level of the fluid medium within which the dispenser is used, and hanger means comprising an elongated hanger strap of thin, flexible material which retains a shape to which it may be deformed, thereby enabling said hanger strap to be conformed over a support structure, on said tank to support said body, a storage chamber carried by the upper portion of said body, said hanger strap chamber, stored substantially within said storage chamber said storage chamber comprising a means for fastening one end of said hanger strap to said body, the other end of which hanger strap is extendible from said storage chamber to support said body in its operative position within said fluid medium.
Claim 3
Dependent Claim
27 words
The invention of claim 1 wherein the hanger strap is folded back-and-forth upon itself in serpentine fashion so as to be contained substantially within said storage chamber.
Claim 4
Dependent Claim
34 words
The invention of claim 1 wherein said hanger strap comprises an elongated strip of plastic material having at least one deformable metal wire covered with plastic material and secured thereto in its elongated direction.
Claim 5
Dependent Claim
32 words
The invention of claim 1 wherein said storage chamber means comprises a bottom wall and wherein said means for fastening said hanger means comprises a plurality of slots through said bottom wall.
Claim 6
Dependent Claim
38 words
The invention of claim 1 wherein said storage chamber further comprises an aperture means through which said one end of said hanger strap may be extended and further including a removable cover means for obturating said aperture means.
Claim 7
Dependent Claim
80 words
The invention of claim 5 wherein said aperture means comprises a generally rectangular slot defining a pair of lateral side edges and wherein said cover means comprises a generally rectangular cover defining a pair of lateral side edges, and wherein the lateral side edges of said slot and said cover are dovetailed so as to enable said cover to be slid away from its position obturating said aperture and allow said hanger strap to be extended from said storage chamber.
Claim 8
Dependent Claim
38 words
The invention of claim 6 further including indicia on said cover to indicate the direction in which said cover is to be slid to expose said hanger strap and flange means on said cover to facilitate movement thereof.
Claim 9
Dependent Claim
183 words
An automatic dispenser for metering a finite amount of a dissolved soluble substance into a tank of fluid containing said dispenser, said dispenser comprising a body having an open chamber means therein for containing said dissolved soluble substance, fluid-level responsive means for automatically metering said finite amount of dissolved soluble substance defined by the volume of said chamber means from said chamber means to the exterior of said body in response to a change in fluid level of the medium within which the dispenser is used, and wherein said fluid-level responsive means comprises at least one top aperture and at least one bottom aperture which are vertically spaced from each other and which apertures fluidly communicate a chamber defined by said chamber means with the exterior of said body, a storage chamber carried by the upper portion of said body, and hanger means being stored substantially within said storage chamber which hanger means having one end thereof affixed to said body and the other end thereof extendible from said storage chamber to support said body in its operative position withiN said fluid medium.
Claim 10
Dependent Claim
183 words
An automatic dispenser for metering a finite amount of a dissolved soluble substance into a tank of fluid containing said dispenser, said dispenser comprising a body having an open chamber means therein for containing said dissolved soluble substance, fluid-level responsive means for automatically metering said finite amount of dissolved soluble substance defined by the volume of said chamber means from said chamber means to the exterior of said body in response to a change in fluid level of the medium within which the dispenser is used, and wherein said fluid-level responsive means comprises at least one top aperture and at least one bottom aperture which are vertically spaced from each other and which apertures fluidly communicate a chamber defined by said chamber means with the exterior of said body, a storage chamber carried by the upper portion of said body, and hanger means being stored substantially within said storage chamber which hanger means having one end thereof affixed to said body and the other end thereof extendible from said storage chamber to support said body in its operative position withiN said fluid medium.
Claim 11
Dependent Claim
119 words
The invention of claim 8 wherein said body comprises a generally cylindrical dispenser top having a closed end in the form of a top wall and an open end, said dispenser top defining said chamber, said top aperture being located in said top wall, said open end of said dispenser having a radial flange, said bottom aperture being located in said radial flange, a dispenser bottom of generally cylindrical configuration having a closed end and an open end so as to define a chamber for receiving a cake of soluble substance therein, and means sealingly engaging said top and bottom of said dispenser at their open ends whereby said chamber and said cake receiving chamber are in fluid communication.
References Cited (Backward Citations)
US315674A
Cited
US324760A
Cited
US415896A
Cited
GB190001167A
Cited
GB190526051A
Cited
US945255A
Cited
US3121236A
Cited
US3241718A
Cited
NL6502895A
Cited
US3423182A
Cited
US3604020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |