Patent US3556353A successfully refreshed from Google Patents.
US3556353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for dispensing liquid
Assignee: Individual
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Filing: 1968-04-17
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Granted: 1971-01-19
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Expires: 1988-04-17
Abstract
Abstract Apparatus for repetitively dispensing accurately measures of liquid which comprises a bottle and a dispensing device installed thereon including a cap having a hole in it and adapted to fit on the neck of the bottle. The device also includes a glass barrel having a shoulder about its upper end for seating upon the upper end of the inside of the neck of the bottle so as to depend beneath the hole in the cap through the neck and into the bottle. A delivery tube has a lower end opening into the barrel and extends upwardly therefrom through the barrel and the hole in the cap to a spout on its outer end. A first check valve is disposed within the barrel beneath the lower end of the delivery tube for normally closing the lower end of the barrel, and a second check valve is disposed within the delivery tube for normally closing its lower end. A glass plunger on the delivery tube is reciprocal within the barrel, in response to raising and lowering of the outer end of the delivery tube, between different vertical positions in the barrel above the lower check valve. A first stop surrounds the delivery tube above the plunger and below the cap, and a second stop surrounds the delivery tube above the cap. A volumetric scale is arranged along the length of the delivery tube below the second stop and above the plunger and the first stop is adjustable along the length of the delivery tube to permit it to be moved to an adjusted position along the scale for varying the stroke of the plunger and thus the volume of liquid to be dispensed.
Inventors
- 👤 Harry A Echols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:49
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/04; G01F11/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
237 words
A device for repetitively dispensing liquid from a bottle, comprising a cap for attachment to the neck of the bottle and having a hole therein; a glass barrel for extension through the neck of the bottle beneath the hole in the cap; said barrel including a plunger chamber and a nozzle at its lower end in communication with the interior of said bottle; a delivery tube disposed in said chamber and extending upwardly within said chamber and through the hole in said cap to project from the top of said cap; a first check valve normally closing said nozzle; a glass plunger on the lower end of said delivery tube and reciprocal in said chamber between different vertical positions therein above the first check valve, said plunger including an opening therethrough communicating with said delivery tube and said chamber; a second check valve in the opening in said plunger and normally closing said opening below said delivery tube; a first stop surrounding said delivery tube for sliding longitudinally thereof between adjusted positions above said plunger and below said cap to limit the upward movement of said plunger; and a second stop separate from the first stop and surrounding said delivery tube above said cap and normally resting on the top of the cap to limit the downward movement of said plunger, the portion of the delivery tube between its lower end and said second stop being glass.
Claim 2
Independent Claim
237 words
A device for repetitively dispensing liquid from a bottle, comprising a cap for attachment to the neck of the bottle and having a hole therein; a glass barrel for extension through the neck of the bottle beneath the hole in the cap; said barrel including a plunger chamber and a nozzle at its lower end in communication with the interior of said bottle; a delivery tube disposed in said chamber and extending upwardly within said chamber and through the hole in said cap to project from the top of said cap; a first check valve normally closing said nozzle; a glass plunger on the lower end of said delivery tube and reciprocal in said chamber between different vertical positions therein above the first check valve, said plunger including an opening therethrough communicating with said delivery tube and said chamber; a second check valve in the opening in said plunger and normally closing said opening below said delivery tube; a first stop surrounding said delivery tube for sliding longitudinally thereof between adjusted positions above said plunger and below said cap to limit the upward movement of said plunger; and a second stop separate from the first stop and surrounding said delivery tube above said cap and normally resting on the top of the cap to limit the downward movement of said plunger, the portion of the delivery tube between its lower end and said second stop being glass.
Claim 3
Dependent Claim
16 words
The device of Claim 1, wherein said plunger and delivery tube are integral with one another.
Claim 4
Dependent Claim
28 words
The device of claim 1, wherein said second stop comprises a coupling between said glass portion and a plastic portion of the delivery tube externally of the cap.
Claim 5
Dependent Claim
23 words
The device of claim 1 wherein said delivery tube includes a volumetric scale on the portion thereof between said first and second stops.
Claim 6
Dependent Claim
22 words
The device of claim 1 wherein said first check valve includes a pair of check valves arranged in series in said nozzle.
Claim 7
Dependent Claim
29 words
The device of claim 1 wherein said nozzle is L-shaped and includes a portion extending normal to the barrel, and said first check valve is disposed in said portion.
Claim 8
Independent Claim
257 words
A device for repetitively dispensing liquid from a bottle, comprising a cap for attachment to the neck of the bottle and having a hole therein; a glass barrel for extension through the neck of the bottle beneath the hole in the cap, said barrel including a plunger chamber and a nozzle at its lower end in communication with the interior of said bottle; a delivery tube disposed in said chamber and extending upwardly within the barrel and through the hole in said cap to project from the top of said cap; a first check valve normally closing said nozzle; a glass plunger integral with the lower end of said delivery tube and reciprocal in said chamber between different vertical positions therein above the first check valve, said plunger including an opening therethrough communicating with said chamber; a second check valve in the opening in said plunger and normally closing said opening; an adjustable first stop slidably surrounding said delivery tube above said plunger and below said cap to limit the upward movement of said plunger; a second stop surrounding said delivery tube above said cap and normally resting on the top of the cap to limit the downward movement of said plunger, the portion of the delivery tube between its lower end and said second stop being glass, and the portion of said delivery tube above said second stop being plastic, said second stop comprising a removable coupling between said glass portion and said plastic portion and a volumetric scale on the delivery tube above said plunger.
Claim 9
Independent Claim
257 words
A device for repetitively dispensing liquid from a bottle, comprising a cap for attachment to the neck of the bottle and having a hole therein; a glass barrel for extension through the neck of the bottle beneath the hole in the cap, said barrel including a plunger chamber and a nozzle at its lower end in communication with the interior of said bottle; a delivery tube disposed in said chamber and extending upwardly within the barrel and through the hole in said cap to project from the top of said cap; a first check valve normally closing said nozzle; a glass plunger integral with the lower end of said delivery tube and reciprocal in said chamber between different vertical positions therein above the first check valve, said plunger including an opening therethrough communicating with said chamber; a second check valve in the opening in said plunger and normally closing said opening; an adjustable first stop slidably surrounding said delivery tube above said plunger and below said cap to limit the upward movement of said plunger; a second stop surrounding said delivery tube above said cap and normally resting on the top of the cap to limit the downward movement of said plunger, the portion of the delivery tube between its lower end and said second stop being glass, and the portion of said delivery tube above said second stop being plastic, said second stop comprising a removable coupling between said glass portion and said plastic portion and a volumetric scale on the delivery tube above said plunger.
Claim 10
Dependent Claim
22 words
The device of claim 7 wherein said first check valve includes a pair of check valves arranged in series in said nozzle.
Claim 11
Dependent Claim
29 words
The device of claim 7 wherein said nozzle is L-shaped and includes a portion extending normal to the barrel, and said first check valve is disposed in said portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |