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US3763608A Expired / Lapsed US ⏱️ 0.0 years remaining

Prefabricated all weather dome-type shelter

Assignee: Individual
•
Filing: 1971-04-12
•
Granted: 1973-10-09
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Expires: 1991-04-12
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Abstract

Abstract A prefabricated dome shaped shelter comprised of a plurality of spherical segments having spaced apart ribs thereon which are joined together to form a self-supporting structure. The individual panels are made of composite sandwich type construction, with layers of bonded fiberglass forming the convex side of each of the panels and with polyurethane foam being affixed to the concave side of the panels. The spherical structure provides maximum living space relative to the area of the enclosure means, as well as an all weather, portable lightweight construction suitable for all environmental living conditions.

Inventors

  • 👤 C Chamlee

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:27
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; E04B; E04B1/00; E04B1/32; E04B1/3211; E04H; E04H14/00; E04B2001/327; E04B2001/3276; E04B2001/3288

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 363 words
A prefabricated shelter comprising a plurality of self supporting panels, each in the form of a spherical segment; each panel having a concave inside wall surface and a convex outside wall surface bound by spaced apart top and bottom edge portions, and spaced apart side edge portions; each said panel being made up of fiberglass impregnated with a plastic resin, and a layer of foamed plastic superimposed on one surface of said fiberglass panel, with the foamed plastic forming the concave surface of the panel while the fiberglass shell forms the convex side of the panel; an anchor ring; said anchor ring circumferentially extending about the base of said shelter; means by which said bottom edge portion of each panel is attached to said anchor ring; said bottom edge portion of each panel defining a marginal part of a relatively large equatorial circumference, said top edge portion of each panel being turned vertically upward to define a marginal part of a relatively small equatorial circumference, said side edge portions converging towards a common apex and terminating at said top and bottom edge portions; an upper ring, means for attaching said top edge portion of each panel to said upper ring to thereby provide an apex of the shelter; a ventilation cap, spaced apart links, said links having journal means at each opposed end portion thereof with one end portion being journaled to an edge portion of said cap and the remaining end portion being journaled to said ring; each said side edge portion of said panels being in the form of a radial flange formed by turning a marginal edge portion of the panel laterally to the surface area of the panel; each adjacent panel being joined together by adjacent said radial flanges which abut one another; means for holding the adjacent flanges together including a metal clip; said clip having spaced legs biased towards one another; each said leg adapted to engage a flange so as to force the flanges together; a longitudinally extending split tube encapsulating the last said means and said flange, and extending along the side edge portions; and means forming a doorway in at least one said panel.
Claim 2
Dependent Claim 363 words
A prefabricated shelter comprising a plurality of self supporting panels, each in the form of a spherical segment; each panel having a concave inside wall surface and a convex outside wall surface bound by spaced apart top and bottom edge portions, and spaced apart side edge portions; each said panel being made up of fiberglass impregnated with a plastic resin, and a layer of foamed plastic superimposed on one surface of said fiberglass panel, with the foamed plastic forming the concave surface of the panel while the fiberglass shell forms the convex side of the panel; an anchor ring; said anchor ring circumferentially extending about the base of said shelter; means by which said bottom edge portion of each panel is attached to said anchor ring; said bottom edge portion of each panel defining a marginal part of a relatively large equatorial circumference, said top edge portion of each panel being turned vertically upward to define a marginal part of a relatively small equatorial circumference, said side edge portions converging towards a common apex and terminating at said top and bottom edge portions; an upper ring, means for attaching said top edge portion of each panel to said upper ring to thereby provide an apex of the shelter; a ventilation cap, spaced apart links, said links having journal means at each opposed end portion thereof with one end portion being journaled to an edge portion of said cap and the remaining end portion being journaled to said ring; each said side edge portion of said panels being in the form of a radial flange formed by turning a marginal edge portion of the panel laterally to the surface area of the panel; each adjacent panel being joined together by adjacent said radial flanges which abut one another; means for holding the adjacent flanges together including a metal clip; said clip having spaced legs biased towards one another; each said leg adapted to engage a flange so as to force the flanges together; a longitudinally extending split tube encapsulating the last said means and said flange, and extending along the side edge portions; and means forming a doorway in at least one said panel.

References Cited (Backward Citations)

CA774802A Cited
US2582723A Cited
US3376679A Cited
US3495368A Cited
US3636676A Cited
US3546826A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-08 1977-04-09 1977-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-08 1981-04-09 1981-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-08 1985-04-09 1985-10-09 $7700.00 Window Closed / Lapsed

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