Patent US3858643A successfully refreshed from Google Patents.
US3858643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Personnel shelter
Assignee: Protect O Dome Inc
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Filing: 1973-04-17
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Granted: 1975-01-07
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Expires: 1993-04-17
Abstract
Abstract A personnel shelter is defined by a canopy and end walls of transparent lightweight flexible material which are removably attached to a bench. Heating and cooling, and air circulating devices are incorporated with the personnel shelter for conditioning the air within the shelter.
Inventors
- 👤 David S Reed
- 👤 John E Cottrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:06
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A47; A47C; A47C11/00; A47C7/00; A47C7/62; A47C7/66; A47C7/72; A47C7/74; A47C7/742; A47C7/744; A61F2007/0001; A61F2007/0039; A61F2007/0045
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
A personnel shelter comprising a bench having a forward support portion, a seating portion and a raised back portion, a canopy extending upward from the upper surface of said raised back portion and curving above said bench, means for securing said canopy to said bench, a wall positioned at each end of said bench having one edge shaped to make a flush joint with said canopy and means attached to said bench for conditioning the air within the area defined by said canopy and said end walls, said means for conditioning the air including a fan and duct means communicating the output from said fan with said defined area for circulating the air within said sheltered area.
Claim 2
Dependent Claim
117 words
A personnel shelter comprising a bench having a forward support portion, a seating portion and a raised back portion, a canopy extending upward from the upper surface of said raised back portion and curving above said bench, means for securing said canopy to said bench, a wall positioned at each end of said bench having one edge shaped to make a flush joint with said canopy and means attached to said bench for conditioning the air within the area defined by said canopy and said end walls, said means for conditioning the air including a fan and duct means communicating the output from said fan with said defined area for circulating the air within said sheltered area.
Claim 3
Dependent Claim
30 words
The personnel shelter of claim 1 further including an evaporator sheet disposed between said fan and said duct means for cooling air before it is circulated within said sheltered area.
Claim 4
Dependent Claim
49 words
The personnel shelter of claim 1 wherein said duct means includes three ducts, one disposed along the top of said raised back portion of said bench, a second disposed along the bottom of said raised back portion and a third disposed along said forward support portion of said bench.
Claim 5
Dependent Claim
39 words
The personnel shelter of claim 1 wherein said means for conditioning the air comprises an air refrigeration unit and duct means communicating the output of said refrigeration unit with said sheltered area for circulating cool air within said area.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |