US3670577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid sampling apparatus
Assignee: Individual
•
Filing: 1970-03-27
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Granted: 1972-06-20
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Expires: 1990-03-27
Abstract
Abstract Apparatus for taking samples of fluid, such as industrial waste and sewage effluent, including a sampling cup slidably mounted in guide means adapted to extend downwardly in the fluid. Hoisting means lowers and raises the cup, and discharge means at the guide causes the cup to tip and discharge its contents when the cup is raised to a predetermined level. The guide means usually is a tube with the cup slidably mounted therein, and the cup is unbalanced but normally retained in an upright position by the tube. When the cup reaches an opening in the tube this unbalanced state causes it to tip over and discharge its contents.
Inventors
- 👤 Ernst Singer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:41
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; G01N2001/1031; G01N2001/1043
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
215 words
Apparatus for taking samples of fluid from a body thereof, comprising a substantially vertical tubular guide adapted to be placed in a fluid and opening at its lower end into the fluid, an unstable sampling cup slidably mounted in the guide, a cable extending through the guide and connected at one end to the cup in such a way that said cup at all times remains upright only through sliding engagement with the guide, an opening in the guide spaced from said lower end and large enough to permit the cup when drawn up to the opening to tip therethrough owing to a lack of support by the guide at said opening and thereby discharging its contents, a spool to which the opposite end of the cable is connected, a reversible electric motor operatively connected to the spool to wind and unwind the cable on said spool, the length of said cable determining the distance the cup travels down the guide so that the cup travels down and up without the motor being reversed, a reversing switch operatively connected to the motor, and operating means on the cable, said operating means and said switch being so positioned that the operating means engages and operates the switch each time the cup tips to discharge its contents.
Claim 2
Dependent Claim
215 words
Apparatus for taking samples of fluid from a body thereof, comprising a substantially vertical tubular guide adapted to be placed in a fluid and opening at its lower end into the fluid, an unstable sampling cup slidably mounted in the guide, a cable extending through the guide and connected at one end to the cup in such a way that said cup at all times remains upright only through sliding engagement with the guide, an opening in the guide spaced from said lower end and large enough to permit the cup when drawn up to the opening to tip therethrough owing to a lack of support by the guide at said opening and thereby discharging its contents, a spool to which the opposite end of the cable is connected, a reversible electric motor operatively connected to the spool to wind and unwind the cable on said spool, the length of said cable determining the distance the cup travels down the guide so that the cup travels down and up without the motor being reversed, a reversing switch operatively connected to the motor, and operating means on the cable, said operating means and said switch being so positioned that the operating means engages and operates the switch each time the cup tips to discharge its contents.
Claim 3
Dependent Claim
22 words
Sampling apparatus as claimed in claim 1 in which said operating means comprises a weight connected to the cable above the cup.
Claim 4
Dependent Claim
136 words
Apparatus for taking samples of fluid from a body thereof, comprising a substantially vertical tubular guide adapted to be placed in a fluid and opening at its lower end into the fluid, an unstable sampling cup slidably mounted in the guide, hoisting means extending through the guide connected to the cup, said guide normally retaining the cup upright therein, a cover over and spaced from the top of the cup for regulating the rate of flow of fluid into said cup, means for adjusting said cover towards and away from the cup, and an opening in the guide spaced from said lower end and large enough to permit the cup when drawn up to the opening to tip therethrough owing to a lack of support by the guide at said opening and thereby discharging its contents.
Claim 5
Dependent Claim
136 words
Apparatus for taking samples of fluid from a body thereof, comprising a substantially vertical tubular guide adapted to be placed in a fluid and opening at its lower end into the fluid, an unstable sampling cup slidably mounted in the guide, hoisting means extending through the guide connected to the cup, said guide normally retaining the cup upright therein, a cover over and spaced from the top of the cup for regulating the rate of flow of fluid into said cup, means for adjusting said cover towards and away from the cup, and an opening in the guide spaced from said lower end and large enough to permit the cup when drawn up to the opening to tip therethrough owing to a lack of support by the guide at said opening and thereby discharging its contents.
Claim 6
Dependent Claim
211 words
Apparatus for taking samples of fluid from a body thereof, comprising a substantially vertical tubular guide adapted to be placed in a fluid and opening at its lower end into the fluid, an unstable sampling cup slidably mounted in the guide, a cable extending through the guide and connected at one end to the cup, said guide normally retaining the cup upright therein, a cover over and spaced from the upper end of the cup for regulating the rate of flow of fluid into said cup, means for adjusting said cover towards and away from the cup, a spool to which the opposite end of the cable is connected, a reversible electric motor operatively connected to the spool to wind and unwind the cable on said spool, an opening in the guide spaced from said lower end and large enough to permit the cup when drawn up to the opening to tip therethrough owing to a lack of support by the guide at said opening and thereby discharging its contents, a reversing switch operatively connected to the motor, and operating means on the cable, said operating means and said switch being so positioned that the operating means engages and operates the switch each time the cup tips to discharge its contents.
Claim 7
Dependent Claim
211 words
Apparatus for taking samples of fluid from a body thereof, comprising a substantially vertical tubular guide adapted to be placed in a fluid and opening at its lower end into the fluid, an unstable sampling cup slidably mounted in the guide, a cable extending through the guide and connected at one end to the cup, said guide normally retaining the cup upright therein, a cover over and spaced from the upper end of the cup for regulating the rate of flow of fluid into said cup, means for adjusting said cover towards and away from the cup, a spool to which the opposite end of the cable is connected, a reversible electric motor operatively connected to the spool to wind and unwind the cable on said spool, an opening in the guide spaced from said lower end and large enough to permit the cup when drawn up to the opening to tip therethrough owing to a lack of support by the guide at said opening and thereby discharging its contents, a reversing switch operatively connected to the motor, and operating means on the cable, said operating means and said switch being so positioned that the operating means engages and operates the switch each time the cup tips to discharge its contents.
References Cited (Backward Citations)
US1494631A
Cited
US3153345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |