Patent US3785525A successfully refreshed from Google Patents.
US3785525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical tablet dispensing device for wells
Assignee: SAFE WELL Manufacturing CO
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Filing: 1972-01-31
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Granted: 1974-01-15
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Expires: 1992-01-31
Abstract
Abstract A chemical tablet dispensing device for wells is disclosed herein and generally comprises a housing positioned over the well. A sealed tablet hopper is provided at the upper end of the housing for supplying chemical tablets to a metering device which is detachably mounted on the lower end of the hopper. The metering device includes a rotatable metering plate adapted to supply a chemical tablet to a communicating tube after predetermined periods of pump operation. Means is also provided to cause the metering device to supply the tablets to the well at predetermined times even if the pump is not being used. The communicating tube deposits the chemical tablet into the well to treat the water therein. Electrical control means is provided for controlling the rotation of the metering plate so that the metering plate is rotated at a predetermined rate during actual pump operation. Means is also provided for preventing moist air from the well from damaging the componenets of the device.
Inventors
- 👤 G Handeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:32
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1407; B65G47/1442; B65G47/1471; C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/687
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
322 words
In combination with a water well, a chemical tablet container positioned adjacent the well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, And control means for controlling the operation of said metering device, said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said container having an open lower end, said metering device being secured to said container at the lower end thereof and normally closing the same, said metering device comprising a rotatable metering plate means having at least one tablet metering opening formed therein, a tube means on said metering device for conveying metered tablets to said well, said control means comprising a power means for rotating said metering plate means at a predetermined rate whereby a tablet will pass downwardly through said metering opening into said tube when said metering opening registers with said tube, said lower end of said container comprising a vertically disposed cylindrical collar, said device comprising a cylindrical member received by said collar, a base plate means secured to the lower end of said cylindrical member, said power means comprising a meter motor operatively secured to said base plate means and having a drive shaft extending upwardly therefrom into said cylindrical member, said metering plate means being rotatably mounted in said cylindrical member and connected to said drive shaft for rotation therewith, said base plate means having an opening formed therein which registers with said metering opening at times, said tube means being in communication with said opening in said base plate means, a slip clutch means mounted on said drive shaft means, said drive shaft means comprising first and second shaft portions, said first shaft portion being connected to said meter motor, said slip clutch means operatively interconnecting said shaft portions.
Claim 2
Dependent Claim
322 words
In combination with a water well, a chemical tablet container positioned adjacent the well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, And control means for controlling the operation of said metering device, said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said container having an open lower end, said metering device being secured to said container at the lower end thereof and normally closing the same, said metering device comprising a rotatable metering plate means having at least one tablet metering opening formed therein, a tube means on said metering device for conveying metered tablets to said well, said control means comprising a power means for rotating said metering plate means at a predetermined rate whereby a tablet will pass downwardly through said metering opening into said tube when said metering opening registers with said tube, said lower end of said container comprising a vertically disposed cylindrical collar, said device comprising a cylindrical member received by said collar, a base plate means secured to the lower end of said cylindrical member, said power means comprising a meter motor operatively secured to said base plate means and having a drive shaft extending upwardly therefrom into said cylindrical member, said metering plate means being rotatably mounted in said cylindrical member and connected to said drive shaft for rotation therewith, said base plate means having an opening formed therein which registers with said metering opening at times, said tube means being in communication with said opening in said base plate means, a slip clutch means mounted on said drive shaft means, said drive shaft means comprising first and second shaft portions, said first shaft portion being connected to said meter motor, said slip clutch means operatively interconnecting said shaft portions.
Claim 3
Dependent Claim
241 words
In combination with a water well, a chemical tablet container positioned adjacent the well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, and control means for controlling the operation of said metering device, said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said metering device being powered by a meter motor, said pump means comprising a pressure tank means having an electrical pressure switch thereon which is operatively connected to one side of a source of electrical energy and which is electrically connected to said pump means so that said pump means is actuated when the pressure in said tank means drops to a predetermined level, a first electrical clock means operatively electrically connected to said pump means whereby said clock means is actuated only when said pump means is actuated, a second electrical clock means electrically connected to said first clock means for actuating said first clock means, a normally open micro-switch means electrically connected to said meter motor whereby said meter motor will only be actuated when said micro-switch means is closed, said clock means having at least one actuating element thereon which is adapted to engage and close said micro-switch means for a predetermined length of time during the operation of said clock means.
Claim 4
Dependent Claim
241 words
In combination with a water well, a chemical tablet container positioned adjacent the well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, and control means for controlling the operation of said metering device, said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said metering device being powered by a meter motor, said pump means comprising a pressure tank means having an electrical pressure switch thereon which is operatively connected to one side of a source of electrical energy and which is electrically connected to said pump means so that said pump means is actuated when the pressure in said tank means drops to a predetermined level, a first electrical clock means operatively electrically connected to said pump means whereby said clock means is actuated only when said pump means is actuated, a second electrical clock means electrically connected to said first clock means for actuating said first clock means, a normally open micro-switch means electrically connected to said meter motor whereby said meter motor will only be actuated when said micro-switch means is closed, said clock means having at least one actuating element thereon which is adapted to engage and close said micro-switch means for a predetermined length of time during the operation of said clock means.
Claim 5
Dependent Claim
238 words
In combination with a water well, a chemical tablet container positioned adjacent the well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, and control means for controlling the operation of said metering device, said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said container having an open lower end, said metering device being secured to said container at the lower end thereof and normally closing the same, said metering device comprising a rotatable metering plate means having at least one tablet metering opening formed therein, a tube means on said metering device for conveying metered tablets to said well, said control means comprising a power means for rotating said metering plate means at a predetermined rate whereby a tablet will pass downwardly through said metering opening into said tube when said metering opening registers with said tube, a first pivotal trap door being provided on said tube means for selectively closing said tube means adjacent the lower end thereof, a first solenoid operatively connected to said first trap door for opening and closing the same, said first solenoid means being electrically connected to said power means so that said first trap door will be opened when said power means is rotating said metering plate.
Claim 6
Dependent Claim
238 words
In combination with a water well, a chemical tablet container positioned adjacent the well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, and control means for controlling the operation of said metering device, said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said container having an open lower end, said metering device being secured to said container at the lower end thereof and normally closing the same, said metering device comprising a rotatable metering plate means having at least one tablet metering opening formed therein, a tube means on said metering device for conveying metered tablets to said well, said control means comprising a power means for rotating said metering plate means at a predetermined rate whereby a tablet will pass downwardly through said metering opening into said tube when said metering opening registers with said tube, a first pivotal trap door being provided on said tube means for selectively closing said tube means adjacent the lower end thereof, a first solenoid operatively connected to said first trap door for opening and closing the same, said first solenoid means being electrically connected to said power means so that said first trap door will be opened when said power means is rotating said metering plate.
Claim 7
Dependent Claim
249 words
In combination with a water well, a chemical tablet container positioned adjacent to well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, and control means for controlling the operation of said metering device. said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said container having an open lower end, said metering device being secured to said container at the lower end thereof and normally closing the same, said metering device comprising a rotatable metering plate means having at least one tablet metering opening formed therein, a tube means on said metering device for conveying metered tablets to said well, said control means comprising a power means for rotating said metering plate means at a predetermined rate whereby a tablet will pass downwardly through said metering opening into said tube when said metering opening registers with said tube, said metering device having a cylindrical housing extending downwardly from said container, said metering plate being positioned in said cylindrical housing, a tablet baffle means in said cylindrical housing above said metering plate, said tablet baffle means comprising a horizontally disposed plate having a central opening formed therein and a cylindrical member extending downwardly therefrom, said cylindrical member having a door area formed therein for permitting the tablets to be deposited on a portion of the metering plate.
Claim 8
Dependent Claim
249 words
In combination with a water well, a chemical tablet container positioned adjacent to well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, and control means for controlling the operation of said metering device. said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said container having an open lower end, said metering device being secured to said container at the lower end thereof and normally closing the same, said metering device comprising a rotatable metering plate means having at least one tablet metering opening formed therein, a tube means on said metering device for conveying metered tablets to said well, said control means comprising a power means for rotating said metering plate means at a predetermined rate whereby a tablet will pass downwardly through said metering opening into said tube when said metering opening registers with said tube, said metering device having a cylindrical housing extending downwardly from said container, said metering plate being positioned in said cylindrical housing, a tablet baffle means in said cylindrical housing above said metering plate, said tablet baffle means comprising a horizontally disposed plate having a central opening formed therein and a cylindrical member extending downwardly therefrom, said cylindrical member having a door area formed therein for permitting the tablets to be deposited on a portion of the metering plate.
Claim 9
Dependent Claim
129 words
The combination of claim 1 wherein said slip clutch means comprises a first clutch element rotatably mounted on said first shaft portion, said first shaft portion having a detent groove formed therein, a detent ball normally in engagement with said detent groove, a spring means yieldably urging said detent ball into engagement with said detent groove, a collar element secured to said first clutch element for rotation therewith, said collar element having a bore formed therein, said spring means being positioned in said bore so that rotation of said first shaft portion will normally cause the rotation of said collar element and said first clutch element, and a second clutch element secured to said second shaft portion, said second clutch element being in mesh with said first clutch element.
Claim 10
Dependent Claim
30 words
The combination of claim 1 wherein said clutch elements have teeth extending therefrom which loosely mesh with each other whereby a predetermined amount of play exists between said clutch elements.
Claim 11
Dependent Claim
108 words
In combination with a water well, a chemical tablet container positioned adjacent the well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, control means for controlling the operation of said metering device, said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said container and said metering device being enclosed by a housing positioned over said well, and an exhaust fan means mounted on said housing for exhausting air from the interior of said housing.
Claim 12
Dependent Claim
108 words
In combination with a water well, a chemical tablet container positioned adjacent the well opening, a metering device in communication with said container adapted to receive tablets therefrom and to meter tablets into said well, control means for controlling the operation of said metering device, said water well having a pump means associated therewith for pumping water from said well, said metering device being activated by said control means when said pump means is operating, said container and said metering device being enclosed by a housing positioned over said well, and an exhaust fan means mounted on said housing for exhausting air from the interior of said housing.
Claim 13
Dependent Claim
46 words
The combination of claim 6 wherein an air inlet opening is formed in said housing opposite to said exhaust fan means, said metering device being positioned between said air inlet opening and said exhaust fan means so that air will be passed around said metering device.
Claim 14
Dependent Claim
32 words
The combination of claim 6 wherein said exhaust fan means is electrically connected to said central means whereby said exhaust fan means will be actuated only when said pump means is actuated.
Claim 15
Dependent Claim
104 words
The combination of claim 3 wherein a second tube means communicates with the well, said tube means being spaced from said second tube means and being adapted to convey metered tablets to said second tube means, a second trap door on said second tube means for selectively closing the same to prevent well moisture from passing upwardly therethrough, a second solenoid means operatively connected to said second trap door for opening and closing the same, said second solenoid means being electrically connected to said power means so that said second trap door will be opened when said power means is rotating said metering plate.
Claim 16
Dependent Claim
52 words
The combination of claim 4 wherein resilient rod members are secured to and extend downwardly from said horizontally disposed plate, the lower ends of said resilient rods terminating above the upper surface of said metering plate, said resilient rod members yieldably maintaining the tablets on a predetermined portion of the metering plate.
Claim 17
Dependent Claim
30 words
The combination of claim 11 wherein a plurality of the rod members are positioned between the door area of said tablet baffle means and the upper end of said tube.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |