Patent US4934566A successfully refreshed from Google Patents.
US4934566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulk liquid dispensing, counting and recording system
Assignee: L Controls Ltd BV
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Filing: 1989-04-11
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Granted: 1990-06-19
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Expires: 2009-04-11
Abstract
Abstract A portion monitor for mounting on a liquid dispensing appratus having a body, a pivotable open and closing mechanism connected to the slidable liquid control stem, a separate control box, the portion monitor comprised of a magnet installed in the end of the liquid control stem closest to said pivotable open and closing mechanism, a Hall effect digital switch supported opposite the end of the slidable liquid control stem nearest the pivotable open and closing mechanism, said magnet energizing said Hall effect digital switch when the slidable liquid control stem is in the open position and turn off said Hall effect digital switch when the liquid control stem is in the closed position.
Inventors
- 👤 Alvin Guerette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:13
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B67D7/22; B67D1/00; B67D1/08; B67D1/12; B67D1/14; B67D1/1405; B67D1/145; B67D1/1466; G; G01; G01F; G01F13/00; G01F13/008; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8242
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
A portion monitor for mounting on a liquid dispensing apparatus having a body, a pivotable open and closing mechanism connected to the slidable liquid control stem, a separate control box, the portion monitor comprised of a magnet installed in the end of the liquid control stem closest to said pivotable open and closing mechanism, a Hall effect digital switch supported opposite the end of the slidable liquid control stem nearest the pivotable open and closing mechanism, said magnet energizing said Hall effect digital switch when the slidable liquid control stem is in the open position and turn off said Hall effect digital switch when the liquid control stem is in the closed position.
Claim 2
Dependent Claim
113 words
A portion monitor for mounting on a liquid dispensing apparatus having a body, a pivotable open and closing mechanism connected to the slidable liquid control stem, a separate control box, the portion monitor comprised of a magnet installed in the end of the liquid control stem closest to said pivotable open and closing mechanism, a Hall effect digital switch supported opposite the end of the slidable liquid control stem nearest the pivotable open and closing mechanism, said magnet energizing said Hall effect digital switch when the slidable liquid control stem is in the open position and turn off said Hall effect digital switch when the liquid control stem is in the closed position.
Claim 3
Dependent Claim
34 words
The portion monitor of claim 1 in which the support for the Hall effect digital switch is mounted on a saddle fitted over the top portion of the body of the liquid dispensing apparatus.
Claim 4
Dependent Claim
33 words
The portion monitor of claim 2 which is connected to the control box of the liquid dispensing apparatus, a signal on said control box signalling when the portion monitor is disconnected or inoperative.
Claim 5
Dependent Claim
24 words
The portion monitor of claim 3 which includes a light on the top of the saddle to indicate the end of each dispensing cycle.
Claim 6
Dependent Claim
113 words
A liquid dispensing apparatus having a body, a pivotable open and closing mechanism connected to a slidable liquid control stem, a separate control box and a portion monitor, the improvement comprising a portion monitor comprised of a magnet in the end of the liquid control stem closest to said pivotable open and closing mechanism, a Hall effect digital switch supported opposite the end of the slidable liquid control stem nearest the pivotable open and closing mechanism, said magnet energizing said Hall effect digital switch when the slidable liquid control stem is in the open position and turn off said Hall effect digital switch when the liquid control stem is in the closed position.
Claim 7
Dependent Claim
113 words
A liquid dispensing apparatus having a body, a pivotable open and closing mechanism connected to a slidable liquid control stem, a separate control box and a portion monitor, the improvement comprising a portion monitor comprised of a magnet in the end of the liquid control stem closest to said pivotable open and closing mechanism, a Hall effect digital switch supported opposite the end of the slidable liquid control stem nearest the pivotable open and closing mechanism, said magnet energizing said Hall effect digital switch when the slidable liquid control stem is in the open position and turn off said Hall effect digital switch when the liquid control stem is in the closed position.
Claim 8
Dependent Claim
35 words
The liquid dispensing apparatus of claim 5 in which the support for the Hall effect digital switch is mounted on a saddle fitted over the top portion of the body of the liquid dispensing apparatus.
Claim 9
Dependent Claim
38 words
The liquid dispensing apparatus of claim 6 in which the portion monitor is connected to the control box of the liquid dispensing apparatus, a signal on said control box signalling when the portion monitor is disconnected or inoperative.
Claim 10
Dependent Claim
29 words
The liquid dispensing apparatus of claim 7 in which the portion monitor includes a light on the top of the saddle to indicate the end of each dispensing cycle.
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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) | 1993-06-18 | 1993-12-18 | 1994-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-18 | 1997-12-18 | 1998-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-18 | 2001-12-18 | 2002-06-19 | $7700.00 | Window Closed / Lapsed |