Patent US1178432A successfully refreshed from Google Patents.
Patent US4858476A successfully refreshed from Google Patents.
US4858476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breathing zone air sampler
Assignee: United States Department of Energy
•
Filing: 1988-01-25
•
Granted: 1989-08-22
•
Expires: 2008-01-25
Abstract
Abstract A sampling apparatus is provided which comprises a sampler for sampling air in the breathing zone of a wearer of the apparatus and a support for the sampler preferably in the form of a pair of eyeglasses. The sampler comprises a sampling assembly supported on the frame of the eyeglasses and including a pair of sample transport tubes which are suspended, in use, centrally of the frame so as to be disposed on opposite sides of the nose of the wearer and which each include an inlet therein that, in use, is disposed adjacent to a respective nostril of the nose of the wearer. A filter holder connected to sample transport tubes supports a removable filter for filtering out particulate material in the air sampled by the apparatus. The sample apparatus is connected to a pump for drawing air into the apparatus through the tube inlets so that the air passes through the filter.
Inventors
- 👤 John Tobin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:13
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2273; G02; G02C; G02C11/00; G01N1/24; G01N2001/2276
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
205 words
A sampling apparatus comprising sampling means for sampling air in the breathing zone of a wearer of the apparatus and support means for said sampling means comprising a pair of eyeglasses including a frame; said sampling means comprising a sampling tube supported on the frame of said eyeglasses and including a main body portion and a pair of sample transport tubes connected to said main portion and suspended, in use, therefrom centrally of said frame so as to be disposed on opposite sides of the nose of the wearer in close proximity but spaced therefrom so that a representative sample of air breathed by the wearer can be taken without obstructing the flow of air into the nostrils of the wearer, said transport tubes each including an inlet therein which, in use, is disposed adjacent to a respective nostil of the nose of the wearer; a filter holder connected to said main body portion of said sample tube; a filter removably mounted in said filter holder for filtering out particulate material in the air sampled by the apparatus; and means for connecting the sampling apparatus to a pump for drawing air into the apparatus through said inlets so that the air passes through said filter.
Claim 2
Dependent Claim
205 words
A sampling apparatus comprising sampling means for sampling air in the breathing zone of a wearer of the apparatus and support means for said sampling means comprising a pair of eyeglasses including a frame; said sampling means comprising a sampling tube supported on the frame of said eyeglasses and including a main body portion and a pair of sample transport tubes connected to said main portion and suspended, in use, therefrom centrally of said frame so as to be disposed on opposite sides of the nose of the wearer in close proximity but spaced therefrom so that a representative sample of air breathed by the wearer can be taken without obstructing the flow of air into the nostrils of the wearer, said transport tubes each including an inlet therein which, in use, is disposed adjacent to a respective nostil of the nose of the wearer; a filter holder connected to said main body portion of said sample tube; a filter removably mounted in said filter holder for filtering out particulate material in the air sampled by the apparatus; and means for connecting the sampling apparatus to a pump for drawing air into the apparatus through said inlets so that the air passes through said filter.
Claim 3
Dependent Claim
188 words
In combination with a pair of eyeglasses, a sampling device for sampling the air in the breathing zone of a wearer of the eyeglasses, said sampling device comprising sampling means, supported on the frame of said eyeglasses and extending into the breathing zone of a wearer of the eyeglasses, for obtaining samples of the air in the area of the nostrils of a wearer of the eyeglasses, wherein said sampling means comprises a pair of transport tubes extending downwardly from said frame and having sampling inlets adapted to be disposed in close proximity to the nostrils of a wearer of the eyeglasses to simulate the position of the nostrils of the wearer of the eyeglasses so that a representative sample of air breathed by the wearer of the eyeglasses can be taken without obstructing the flow of air into the nostrils of the wearer of the eyeglasses, a filter means connected to said sampling means for filtering out particulate matter contained in the air sampled by said sampling means, and pump means connected to said filter means for drawing air into said sampling means through said filter means.
Claim 4
Dependent Claim
188 words
In combination with a pair of eyeglasses, a sampling device for sampling the air in the breathing zone of a wearer of the eyeglasses, said sampling device comprising sampling means, supported on the frame of said eyeglasses and extending into the breathing zone of a wearer of the eyeglasses, for obtaining samples of the air in the area of the nostrils of a wearer of the eyeglasses, wherein said sampling means comprises a pair of transport tubes extending downwardly from said frame and having sampling inlets adapted to be disposed in close proximity to the nostrils of a wearer of the eyeglasses to simulate the position of the nostrils of the wearer of the eyeglasses so that a representative sample of air breathed by the wearer of the eyeglasses can be taken without obstructing the flow of air into the nostrils of the wearer of the eyeglasses, a filter means connected to said sampling means for filtering out particulate matter contained in the air sampled by said sampling means, and pump means connected to said filter means for drawing air into said sampling means through said filter means.
References Cited (Backward Citations)
US2245969A
Cited
DE2233660A1
Cited
US4080832A
Cited
US4350507A
Cited
US4360253A
Cited
US4389903A
Cited
US4465067A
Cited
US4559941A
Cited
US4589292A
Cited
US4721517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |