US3881359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot atmosphere particulate sampler
Assignee: United States Department of the Navy
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Filing: 1974-04-26
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Granted: 1975-05-06
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Expires: 1994-04-26
Abstract
Abstract A hot atmosphere particulate sampler comprised of a heated sample box having a separator and filter, a sample probe, a remotely mounted condenser box and a heated vacuum tube for maintaining the temperature of a particulate sample during flow from the sample box to the condenser box. The heated vacuum is housed in an insulated, flexible umbilical cord, which also houses electrical, thermocouple and pitot tube leads. The temperature of the particulate sample is kept above dew-point during flow to a condenser box containing impinger bottles in a cooling ice and water bath. The system is operated by a control console which provides electrical power to the heaters and thermocouples and a vacuum to the impinger bottles of the condenser box.
Inventors
- 👤 Thomas L Culbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:34
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2247; G01N1/2258; G01N1/2202; G01N1/2205; G01N1/2211; G01N1/24; G01N2001/2261
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A hot atmosphere particulate sampler comprising: a. an insulated box; b. means for heating the interior of said insulated box; c. a separator mounted in said insulated box for receiving the particulate sample; d. a filter mounted in said insulated box and connected to receive the particulate sample from the separator; e. a condenser box having impinger bottles in a cooling bath remotely mounted away from said insulated box; f. means remotely connecting the flow of the particulate sample, from the filter to the condenser box; and g. means for heating the remotely connecting means to maintain the particulate sample above a predetermined temperature during its flow from the filter to the condenser box.
Claim 2
Dependent Claim
114 words
A hot atmosphere particulate sampler comprising: a. an insulated box; b. means for heating the interior of said insulated box; c. a separator mounted in said insulated box for receiving the particulate sample; d. a filter mounted in said insulated box and connected to receive the particulate sample from the separator; e. a condenser box having impinger bottles in a cooling bath remotely mounted away from said insulated box; f. means remotely connecting the flow of the particulate sample, from the filter to the condenser box; and g. means for heating the remotely connecting means to maintain the particulate sample above a predetermined temperature during its flow from the filter to the condenser box.
Claim 3
Dependent Claim
22 words
The particulate sampler according to claim 1 wherein said remotely connecting means comprises: a flexible umbilical cord containing a heated vacuum hose.
Claim 4
Dependent Claim
25 words
The particulate sampler according to claim 2 wherein said means for heating the remotely connecting means comprises: a heated nickel-chromium wire surrounding the vacuum hose.
Claim 5
Dependent Claim
23 words
The particulate sampler according to claim 3 wherein the vacuum hose is heated to maintain the particulate sample above the dew point temperature.
Claim 6
Dependent Claim
22 words
The particulate sampler according to claim 4 wherein said separator is a cyclone separator capable of removing particles larger than 5 microns.
Claim 7
Dependent Claim
40 words
The particulate sampler according to claim 5 wherein said umbilical cord includes: a. electrical leads for energizing the means for heating the insulated box; b. thermocouple leads for controlling the temperature in the insulated box; and c. pitot tube leads.
References Cited (Backward Citations)
US3668825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |