US4539567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave monitor
Assignee: BREWER SHARON Inc
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Filing: 1983-09-12
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Granted: 1985-09-03
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Expires: 2003-09-12
Abstract
Abstract An improved microwave field monitor device is disclosed characterized by use of a microstrip antenna and control electronics adapted to provide a field alarm, field monitor, accumulated dose alarm, and integrated dose indication of RF radiation exposure to an individual. The monitor is packaged in a small configuration similar to an identification badge adapted to be easily affixed to the clothing of a user. The monitor additionally is capable of measuring the RF radiation exposure at particular part or whole body resonance frequency bands or standing wave hot spots known to be hazardous to individuals.
Inventors
- 👤 Richard D. Brewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:13
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/273; G; G01; G01R; G01R29/00; G01R29/08; G01R29/0807; G01R29/0814; G01R29/0857; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/247
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
112 words
An improved microwave field monitoring device comprising: a housing adapted to be worn upon an individual; antenna means carried by said housing for detecting microwave radiation irradiated upon said housing at a specific microwave radiation band level; means responsive to said antenna means for accumulating and integrating the amount of radiation irradiated upon said housing over differing predetermined time periods; means for displaying the accumulated and integrated amount of radiation irradiated upon said housing for each of said differing time periods; and alarm means responsive to said accumulating and integrating means to alert the individual to exposure of predetermined quantities of radiation irradiated upon said housing in excess of safe exposure limits.
Claim 2
Dependent Claim
112 words
An improved microwave field monitoring device comprising: a housing adapted to be worn upon an individual; antenna means carried by said housing for detecting microwave radiation irradiated upon said housing at a specific microwave radiation band level; means responsive to said antenna means for accumulating and integrating the amount of radiation irradiated upon said housing over differing predetermined time periods; means for displaying the accumulated and integrated amount of radiation irradiated upon said housing for each of said differing time periods; and alarm means responsive to said accumulating and integrating means to alert the individual to exposure of predetermined quantities of radiation irradiated upon said housing in excess of safe exposure limits.
Claim 3
Dependent Claim
21 words
The device of claim 1 wherein said antenna means includes means for detecting microwave radiation at multiple discrete frequency band levels.
Claim 4
Dependent Claim
29 words
The device of claim 2 further comprising switch means for selectively permitting the display of said accumulating and integrating means for each of said multiple discrete frequency band levels.
Claim 5
Dependent Claim
13 words
The device of claim 3 wherein said antenna means comprises a microstrip antenna.
Claim 6
Dependent Claim
16 words
The device of claim 4 wherein said accumulating and integrating means comprises a monolithic integrated circuit.
Claim 7
Dependent Claim
21 words
The device of claim 5 further comprising means for pretesting said microwave integrated circuit to insure proper functioning of said circuit.
Claim 8
Dependent Claim
14 words
The device of claim 6 wherein said displaying means comprises a digital display device.
Claim 9
Dependent Claim
125 words
An improved microwave monitoring device comprising: a housing adapted to be worn upon an individual; antenna means disposed upon said housing adapted to detect microwave radiation at multiple specific partial body resonance frequency band levels; means responsive to said antenna means for determining the integrated and accumulated amount of microwave radiation exposed to the individual in a desired time period for each of said specific frequency band levels; alarm means response to said determining means for alerting the individual to quantities of radiation in excess of predetermined safe exposure levels of microwave radiation at each of said specific frequency band levels; and means for selectively displaying the accumulated and integrated amount of radiation irradiated upon said housing for each of said specific frequency band levels.
Claim 10
Dependent Claim
125 words
An improved microwave monitoring device comprising: a housing adapted to be worn upon an individual; antenna means disposed upon said housing adapted to detect microwave radiation at multiple specific partial body resonance frequency band levels; means responsive to said antenna means for determining the integrated and accumulated amount of microwave radiation exposed to the individual in a desired time period for each of said specific frequency band levels; alarm means response to said determining means for alerting the individual to quantities of radiation in excess of predetermined safe exposure levels of microwave radiation at each of said specific frequency band levels; and means for selectively displaying the accumulated and integrated amount of radiation irradiated upon said housing for each of said specific frequency band levels.
Claim 11
Dependent Claim
21 words
The device of claim 8 wherein said antenna means includes means for detecting microwave radiation at discrete multiple frequency band levels.
Claim 12
Dependent Claim
13 words
The device of claim 8 wherein said antenna means comprises a microstrip antenna.
Claim 13
Dependent Claim
20 words
The device of claim 10 wherein said alerting means includes a warning light adapted to be viewed by the individual.
Claim 14
Dependent Claim
13 words
The device of claim 11 wherein said alerting means includes an audible alarm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |