Patent US4022066A successfully refreshed from Google Patents.
US4022066A
Expired / Lapsed
US
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Apparatus for removing liquid samples
Assignee: Diessel GmbH and Co
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Filing: 1975-10-07
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Granted: 1977-05-10
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Expires: 1995-10-07
Abstract
Abstract Apparatus for removing liquid samples, especially milk samples, from a flow facility wherein a feed pump, an electromagnetically actuated and normally closed metering valve physically located at a higher level than said feed pump, an air eliminator and a volume meter are sequentially arrayed downstream. The metering valve (7) is connected to flow line (6) by a short connecting pipe (15) sealed by closing element (11), the drain tube (8) of this valve leads to a sample container located above closing element (11) and defined by channel (14) traversed by valve shaft (13), which leaves annular gap (29) between the outer surface of the valve shaft (13) and the wall of channel (14) and which is large enough as to just suffice in cross-section to pass the amount of liquid sample to be removed.
Inventors
- 👤 Manfred Kaune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:27
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N1/2035; G01N33/00; G01N33/02; G01N33/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
208 words
In an apparatus for removing liquid samples, especially milk samples, from a flow system having a feed pump, an electro 0 magnetically actuated and normally closed metering valve physically located at a higher lever than said feed pump, an air eliminator and a volume meter sequentially arrayed downstream, the improvement comprising: a flow line (6) connecting said feed pump and said air eliminator, said metering valve (7) connected to said flow line (6) by a short connecting pipe (15) and sealed by closing element (11), a drain tube (8) of said valve leading to a sample container issuing above said closing element (11) and defined by a channel (14) traversed by a valve shaft (13), and defining an annular gap (29) between the outer surface of said valve shaft (14) and a wall of said channel (14), said channel having a given cross section to pass the amount of liquid sample to be removed, said metering valve (7) and said valve shaft (13) vertically positioned, and control means (36,37,38) for adjusting the duration and the frequency of the openings of metering valve (7) are provided, said control means upon termination of flow of a first quantity of liquid allowing activating at least once more said metering valve (7).
Claim 2
Dependent Claim
208 words
In an apparatus for removing liquid samples, especially milk samples, from a flow system having a feed pump, an electro 0 magnetically actuated and normally closed metering valve physically located at a higher lever than said feed pump, an air eliminator and a volume meter sequentially arrayed downstream, the improvement comprising: a flow line (6) connecting said feed pump and said air eliminator, said metering valve (7) connected to said flow line (6) by a short connecting pipe (15) and sealed by closing element (11), a drain tube (8) of said valve leading to a sample container issuing above said closing element (11) and defined by a channel (14) traversed by a valve shaft (13), and defining an annular gap (29) between the outer surface of said valve shaft (14) and a wall of said channel (14), said channel having a given cross section to pass the amount of liquid sample to be removed, said metering valve (7) and said valve shaft (13) vertically positioned, and control means (36,37,38) for adjusting the duration and the frequency of the openings of metering valve (7) are provided, said control means upon termination of flow of a first quantity of liquid allowing activating at least once more said metering valve (7).
Claim 3
Dependent Claim
31 words
Apparatus as defined in claim 1, wherein an electromagnet (22) actuates said metering valve (7) and is a thrust magnet acting on said valve shaft (13) in the direction of opening.
Claim 4
Dependent Claim
51 words
Apparatus as defined in claim 2, wherein said closing element (11) together with said valve shaft (13) and a valve housing (10) containing said drain tube (8) are separate and detachable from said electromagnet (22) and its mounting (21) and are exchangeable with respect to these and to flow line (6).
Claim 5
Dependent Claim
58 words
Apparatus as defined in claim 2, wherein said electromagnet (22) is connected to a support (21) screwed onto a valve housing (10) and traversed by a plunger (23) of said electromagnet, said plunger acting on a cap (20) connected to the free end of said valve shaft (13) and subject to the force of a return spring (19).
Claim 6
Dependent Claim
34 words
Apparatus as defined in claim 4, wherein said valve housing (10) is provided with a screwed-in guide (18) for a stop (16) of said valve shaft (13), said stop supporting said return spring (19).
Claim 7
Dependent Claim
49 words
Apparatus as defined in claim 1, wherein said control comprises first and second time generators (30,35) of which said first time generator (30) controls the time intervals between the individual switching pulses and said second time generator (35) controls the duration of the times of said metering valve (7).
Claim 8
Dependent Claim
30 words
Apparatus as defined in claim 6, wherein an electromagnet (22) of said metering valve (7) is actuated together with a feed pump turn off switch in the direction of opening.
Claim 9
Dependent Claim
38 words
Apparatus as defined in claim 7, wherein a third time generator (36) is provided which acts in the direction of opening on said electromagnet (22) of said metering valve (7) following turn off of a feed pump (2).
Claim 10
Dependent Claim
33 words
Apparatus as defined in claim 8, wherein said third time generator (36) is hooked up through a special switch (37) which is actuated together with a turn off switch of said feed pump.
Claim 11
Dependent Claim
37 words
Apparatus as defined in claim 9, wherein synchronizer (38) follows said third time generator (36) and acts repeatedly in sequence on said electromagnet (22) of said metering valve (7) following shut off of said feed pump (2).
Claim 12
Dependent Claim
17 words
Apparatus as defined in claim 10, wherein said time generators (30,35,36) and said synchronizer (38) are adjusted.
Claim 13
Dependent Claim
13 words
Apparatus as defined in claim 11, wherein said generators (30,35,36) are RC circuits.
Claim 14
Dependent Claim
44 words
Apparatus as defined in claim 12, wherein a time delay circuit is provided which following turning on feed pump (2) prevents any residue from the previous flow in feed line (6,9) from acting on metering valve (7) during and until removal of such residue.
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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |