Patent US5797412A successfully refreshed from Google Patents.
US5797412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible shelter with flexible, collapsible canopy
Assignee: Sanwa Bank California
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Filing: 1997-03-25
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Granted: 1998-08-25
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Expires: 2017-03-25
Abstract
Abstract The collapsible shelter includes a truss and canopy framework that permits a flexible, collapsible canopy to be moved between a raised position and a lowered position. The collapsible shelter includes at least three legs supporting flexible poles removably mounted to the tops of the legs and forming the framework of the canopy. X-shaped truss pairs of link members are connected to each of the legs on each side of the shelter between adjacent legs.
Inventors
- 👤 Mark C. Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:21
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/32; E04H15/58; E04H15/34; E04H15/44; E04H15/48; E04H15/50; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32467; Y10T403/32475; Y10T403/32606; Y10T403/32951; Y10T403/34; Y10T403/341; Y10T403/342; Y10T403/343; Y10T403/345
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
171 words
A collapsible shelter, comprising: at least three legs, each of said legs having an upper end and a lower end; at least two perimeter truss pairs of link members connected to each of said legs, each of said perimeter truss pairs of link members including first and second link members, said first and second link members each having inner ends having a surface defining an opening, a reinforcing plug disposed in each of said openings of said inner ends of said first and second link members, a first bolt pivotally connecting each of said inner ends of said first link members on a side of the collapsible shelter through said reinforcing plugs, and a second bolt pivotally connecting each of said inner ends of said second link members on a side of the collapsible shelter through said reinforcing plugs, whereby said first and second bolts can be tightened on said inner ends of said first and second link members without compromising the structural integrity of the first and second link members.
Claim 2
Dependent Claim
171 words
A collapsible shelter, comprising: at least three legs, each of said legs having an upper end and a lower end; at least two perimeter truss pairs of link members connected to each of said legs, each of said perimeter truss pairs of link members including first and second link members, said first and second link members each having inner ends having a surface defining an opening, a reinforcing plug disposed in each of said openings of said inner ends of said first and second link members, a first bolt pivotally connecting each of said inner ends of said first link members on a side of the collapsible shelter through said reinforcing plugs, and a second bolt pivotally connecting each of said inner ends of said second link members on a side of the collapsible shelter through said reinforcing plugs, whereby said first and second bolts can be tightened on said inner ends of said first and second link members without compromising the structural integrity of the first and second link members.
Claim 3
Dependent Claim
16 words
The collapsible shelter of claim 1, wherein said reinforcing plug is formed of a rigid plastic.
Claim 4
Dependent Claim
47 words
The collapsible shelter of claim 1, wherein said reinforcing plug is forked, having a first prong inserted into said openings, and a second prong having a generally flat outside surface, said second prong being adapted to be disposed adjacent a second prong of an adjacent reinforcing plug.
Claim 5
Dependent Claim
36 words
The collapsible shelter of claim 3, wherein an aperture extends through said first and second prongs of said reinforcing plug, corresponding to an aperture through the inner ends of said link members for receiving said bolt.
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) | 2001-08-24 | 2002-02-23 | 2002-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-24 | 2006-02-23 | 2006-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-24 | 2010-02-23 | 2010-08-25 | $7700.00 | Window Closed / Lapsed |