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Patent US4786472A successfully refreshed from Google Patents.
US4786472A
Expired / Lapsed
US
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Air sampling device
Assignee: RJ Reynolds Tobacco Co
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Filing: 1986-08-21
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Granted: 1988-11-22
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Expires: 2006-08-21
Abstract
Abstract A briefcase contains components capable of sampling air for analysis. For example, air can be introduced into the briefcase through inlet ports and that air can be monitored for components of environmental tobacco smoke. A chemical collection device such as a sorbent tube can collect nicotine, a filter can collect respirable suspended particulate matter, and a chemical detector can monitor carbon monoxide levels. The environmental temperature and barometric pressure of the environment can be monitored also. Data is stored on a microcomputer within the briefcase, and can be transferred to a computer at a later time for data analysis.
Inventors
- 👤 Bain C. McConnell
- 👤 Guy B. Oldaker, III
- 👤 Richard F. Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:47
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/24; Y; Y10; Y10T; Y10T436/00; Y10T436/17; Y10T436/20; Y10T436/204998; Y10T436/205831
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
139 words
An environmental air sampling device which includes (a) a portable outer container having air inlet means; (b) calibrated air flow pumping means connected to the air inlet means; (c) at least one chemical collection means for quantitative determination of predetermined chemicals; (d) means for sampling predetermined particulate matter; (e) means for determining relative conditions of enviornment including a temperature sensing means for determining environmental temperature and a means for sensing barometric pressure; (f) data storage means including means for recording time periods over which air is sampled and means for recording relative conditions of environment; and (g) power source for operation of components including the pumping means and data storage means; wherein components (b) through (g) are contained within the outer container and the air sampling device is adapted to be employed with the outer container in closed form.
Claim 2
Dependent Claim
139 words
An environmental air sampling device which includes (a) a portable outer container having air inlet means; (b) calibrated air flow pumping means connected to the air inlet means; (c) at least one chemical collection means for quantitative determination of predetermined chemicals; (d) means for sampling predetermined particulate matter; (e) means for determining relative conditions of enviornment including a temperature sensing means for determining environmental temperature and a means for sensing barometric pressure; (f) data storage means including means for recording time periods over which air is sampled and means for recording relative conditions of environment; and (g) power source for operation of components including the pumping means and data storage means; wherein components (b) through (g) are contained within the outer container and the air sampling device is adapted to be employed with the outer container in closed form.
Claim 3
Dependent Claim
12 words
The device of claim 1 wherein the outer container is a briefcase.
Claim 4
Dependent Claim
12 words
The device of claim 2 which weighs less than about 30 pounds.
Claim 5
Dependent Claim
26 words
The device of claim 1 wherein said means for sampling predetermined particulate matter is a means for collecting respirable suspended particulate matter form environmental tobacco smoke.
Claim 6
Dependent Claim
16 words
The device of claim 1 wherein said chemical collection means is a means for collecting nicotine.
Claim 7
Dependent Claim
18 words
The device of claim 1 wherein the power source includes at least one battery and a recharging unit.
Claim 8
Dependent Claim
149 words
An environmental air sampling device which includes (a) a portable outer container having air inlet means; (b) calibrated air flow pumping means connected to the air inlet means; (c) at least one chemical detection means for quantitative deterination of predetermined chemicals; (d) means for sampling predetermined particulate matter; (e) means for determining relative conditions of environment including a temperature sensing means for determining environmental temperature and a means for sensing barometric pressure; (f) data storage means including means for recording time periods over which air is sampled, means for recording relative conditions of environment, and means for recording data provided from the chemical detection means; and (g) power source for operation of components including the pumping means and data storage means; wherein components (b) through (g) are contained within the outer container; and the air sampling device is adapted to be employed with the outer container in closed form.
Claim 9
Dependent Claim
149 words
An environmental air sampling device which includes (a) a portable outer container having air inlet means; (b) calibrated air flow pumping means connected to the air inlet means; (c) at least one chemical detection means for quantitative deterination of predetermined chemicals; (d) means for sampling predetermined particulate matter; (e) means for determining relative conditions of environment including a temperature sensing means for determining environmental temperature and a means for sensing barometric pressure; (f) data storage means including means for recording time periods over which air is sampled, means for recording relative conditions of environment, and means for recording data provided from the chemical detection means; and (g) power source for operation of components including the pumping means and data storage means; wherein components (b) through (g) are contained within the outer container; and the air sampling device is adapted to be employed with the outer container in closed form.
Claim 10
Dependent Claim
12 words
The device of claim 7 wherein the outer container is a briefcase.
Claim 11
Dependent Claim
12 words
The device of claim 8 which weighs less than about 30 pounds.
Claim 12
Dependent Claim
26 words
The device of claim 7 wherein said means for sampling predetermined particulate matter is a means for collecting respirable suspended particulate matter form environmental tobacco smoke.
Claim 13
Dependent Claim
17 words
The device of claim 7 wherein said chemical detection means is a means for collecting carbon monoxide.
Claim 14
Dependent Claim
18 words
The device of claim 7 wherein the power source includes at least one battery and a recharging unit.
Claim 15
Dependent Claim
162 words
An environmental air sampling device which includes (a) a portable outer container having air inlet means; (b) calibrated air flow pumping means connected to the air inlet means; (c) at least one chemical detection means for quantitative determination of predetermined chemicals; (d) at least one chemical collection means for quantitative determination of predetermined chemicals; (e) means for sampling predetermined particulate matter; (f) means for determining relative conditions of environment including a temperature sensing means for determining environmental temperature and a means for sensing barometeric pressure; (g) data storage means including means for recording time periods over which air is sampled, means for recording relative conditions of environment, and means for recording data provided from the chemical detection means; and (h) power source for operation of storage including the pumping means and data collection means; wherein components (b) through (h) are contained within the outer container, and the air sampling device is adapted to be employed with the outer container in closed form.
Claim 16
Dependent Claim
162 words
An environmental air sampling device which includes (a) a portable outer container having air inlet means; (b) calibrated air flow pumping means connected to the air inlet means; (c) at least one chemical detection means for quantitative determination of predetermined chemicals; (d) at least one chemical collection means for quantitative determination of predetermined chemicals; (e) means for sampling predetermined particulate matter; (f) means for determining relative conditions of environment including a temperature sensing means for determining environmental temperature and a means for sensing barometeric pressure; (g) data storage means including means for recording time periods over which air is sampled, means for recording relative conditions of environment, and means for recording data provided from the chemical detection means; and (h) power source for operation of storage including the pumping means and data collection means; wherein components (b) through (h) are contained within the outer container, and the air sampling device is adapted to be employed with the outer container in closed form.
Claim 17
Dependent Claim
26 words
The device of claim 13 wherein said means for sampling predetermined particulate matter is a means for collecting respirable suspended particulate matter for environmental tobacco smoke.
Claim 18
Dependent Claim
12 words
The device of claim 13 wherein the outer container is a briefcase.
Claim 19
Dependent Claim
12 words
The device of claim 15 which weighs less than about 30 pounds.
Claim 20
Dependent Claim
28 words
The device of claim 13 wherein said chemical detection means is a means for detecting carbon monoxie and said chemical collection means is a means for collecting nicotine.
Claim 21
Dependent Claim
18 words
The device of claim 13 wherein the power source includes at least one battery and a recharging unit.
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) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |