Change Over Station and Method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Nov 27, 2014
app pub date -
May 13, 2014
filing date -
May 24, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A change over station (COS) for persons in a hazardous environment includes a steel housing having only a single entrance door, a chamber, and an air lock portion. The COS includes a first elongate seat disposed in the chamber and a plurality of compressed air cylinders disposed in the seat. The COS includes plumbing connected to the air cylinders formed of gas lines and valves and an exhaust muffler including first, second and third air paths that provide air into the chamber. The third air path is door activated when the door is opened by a door activated switch. The COS includes a storage portion disposed in the housing having supplies, including water and SCSRs or SCBAs. A method for providing a protected environment to miners from a mine environment in a mine.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
STRATA PRODUCTS WORLDWIDE LLC | 8995 ROSWELL ROAD SUITE 200 SANDY SPRINGS GA 30350 | |
STRATA SAFETY PRODUCTS LLC | 8995 ROSWELL ROAD SUITE 200 SANDY SPRINGS GA 30350 | |
STRATA MINE SERVICES LLC | 8995 ROSWELL ROAD SUITE 200 SANDY SPRINGS GA 30350 |
International Classification(s)

- 2014 Application Filing Year
- E21F Class
- 52 Applications Filed
- 44 Patents Issued To-Date
- 84.62 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Maust, David Emerson | Grantsville, US | 5 | 10 |
# of filed Patents : 5 Total Citations : 10 | |||
Murray, Kyle R | Somerset, US | 4 | 8 |
# of filed Patents : 4 Total Citations : 8 | |||
Reinmann,, Jr John J | Alpharetta, US | 5 | 29 |
# of filed Patents : 5 Total Citations : 29 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- E21F Class
- 0 % this patent is cited more than
- 11 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 27, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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