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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 5029847 | Foldable exercise stick A foldable exercise stick 10 is provided for exercising. The foldable exercise stick includes a first elongated member 20 having an aperture 28 extending therethrough and an intermediate elongated member 22, 24 having an aperture 28 extending therethrough... | 07/09/1991 |
| 5000211 | Tent structure A modular tent structure comprises a canopy structure (20) including a peripheral frame (23) adapted to support a covering roof sheet (24) and comprising collapsible sides, each constituted by a central crown joint structure to each side of which is pivot... | 03/19/1991 |
| 4979531 | Tent pole and method of manufacture therefor A flexible, multi-segmented support structure, and method for manufacturing same, particularly suited for use as a tent pole, wherein the support structure includes a plurality of tubular segments and each segment is connected to its adjacent segment or s... | 12/25/1990 |
| 4966181 | Beach wind-shielding and signalling device A rectangular fabric article of manufacture vertically supported on poles on a beach so that users on the leeward side are shielded from wind, and having color indicia or the like imprinted on the windward side to serve as a location-indicating visual sig... | 10/30/1990 |
| 4951327 | Pool cover support system A swimming pool cover support system for maintaining the cleanliness of a pool during periods the pool is not in use includes at least one central support member, and a plurality of support arms. The top of the support member is positioned at a height gre... | 08/28/1990 |
| 4942895 | Tensioned tent structure and erection method therefor A tensioned tent structure includes a flexible covering having a vertex portion and spaced corner portions and which has a selected geometrical shape in the erect position. The tent structure further includes an anchor for securing each corner portion to ... | 07/24/1990 |
| 4877044 | Tent, tent ribs, and method of erecting tents A tent of the type comprising a fabric shell suppoprted on a skeleton frame having at least two criss-crossing ribs, the ribs having patches of mating halves of a hook-and-loop type fastening material on the portions of the ribs that criss-cross, to relea... | 10/31/1989 |
| 4846205 | Beach rap The apparatus, used primarily on the beach, protects user from wind and blowing sand, as well as providing minimal shade from sun. The framework, made of rigid, plastic pipe, is held together by a braided nylon elastic cord, and it is sewn into a flexible... | 07/11/1989 |
| 4637416 | Integral lightweight tent and box for portable applications An integral tent and container for portable applications, where the container, when opened, forms an integral support portion and covering portion of the erected enclosure.... | 01/20/1987 |
| 4611946 | Flexible joint Flexible joint, including at least two plate spring members (3, 3'), located separated from each other and extending substantially parallel in relation to each other, attached in connection to first and each other adjacently located end portions against a... | 09/16/1986 |
| 4566475 | Outdoor recreation area cover An outdoor recreational area cover comprises a pylon support with a plurality of circular segment shaped cover members which have inner apices which are pivotally supported on the pylon support. All the supports are connected to the cover members at a spa... | 01/28/1986 |
| 4508126 | Retractable awning for mobile dwellings An improved retractable awning for mobile dwellings and for other installation places, has an interior, partial length, centered, stiffener inserted into an awning roller tube to substantially eliminate any unreasonable sag across a long span of an awning... | 04/02/1985 |
| 4457553 | Portable shower for van or camper vehicle A portable shower mountable on a van or similar vehicle wherein a shower curtain is hung from a U-shaped frame which is adjustable in width and telescopes inwardly into parallel tubes mounted near opposite lengthwise rain gutters of a van roof. The parall... | 07/03/1984 |
| 4408260 | Tent construction having illuminating means A tent construction having a source of illumination built within the structural framework of the tent.... | 10/04/1983 |
| 4290157 | Collapsible boat A collapsible boat comprising a first longitudinal main beam terminating in an upwardly bow and stern member; a plurality of longitudinal rib members forming the gunwales and the stringers. The ends of the gunwales and stringers are joined in opposed pair... | 09/22/1981 |
| 4184502 | Shade apparatus A lightweight shade apparatus constructed of a plurality of intersecting ribs extending radially outwardly, the ribs being covered by bowed cross members adapted to fit over the ribs and to be affixed thereto by a cooperating circumferential belt, the bel... | 01/22/1980 |
| 4164233 | Vehicle covering apparatus A portable device for covering vehicles comprising attaching clamps for connecting to the front and rear of the vehicle, extendable rods attached at one end to the clamps and extending above the vehicle, and a waterproof covering extendable over the vehic... | 08/14/1979 |
| 4131380 | Shaft end coupling means Coupling means for use in erecting a framework structure, which includes a node having on its outer surface a plurality of primary faces disposed in a predetermined arrangement and secondary faces associated with the primary faces, each secondary face bei... | 12/26/1978 |
| 4111217 | Arctic tent pole A support which includes two or more pole sections hingedly interconnected by a hinge permitting the support to be folded for storage purposes. At least one of the pole sections has a pair of portions disposed in telescopic relation for sliding movement p... | 09/05/1978 |
| 4066089 | Collapsible shelter structure The collapsible shelter structure comprises a pair of composite frame sections corresponding, generally, to front and back walls of the shelter. The front and back frame sections are held in spaced relationship by struts that themselves may be foldable as... | 01/03/1978 |
| 4063830 | Lockable and separable pivotal connector joint The disclosure relates to a connector joint that consists of separable elements that may be either locked in axial alignment or permitted to pivot relative to each other. The preferred embodiment disclosed utilizes a tubular receiving sleeve with a radius... | 12/20/1977 |
| 4038997 | Tent support pole with detachable strut and rib means A tent support pole having adjacent one end a plurality of hooks spaced circumferentially around the pole on a fixed collar. A sleeve is slidable on the pole between the hook collar and a fixed stop collar spaced below the hook collar. The sleeve has a li... | 08/02/1977 |
