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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7406978 | Environmental containment unit A portable enclosure, easily erectable and collapsible, to provide environment control and prevent contaminants from being released from the enclosure. The enclosure provides a flexible envelope attached to the interior of the space defined by vertical and horizonta... | 08/05/2008 |
| 7340789 | Over-bed support structure A structure positioned over a bed and able to support up to 200 pounds, which allows persons involved in sexual intercourse to position their bodies in ways that may be more comfortable, or more pleasurable, if one of the participants is able to support some or all ... | 03/11/2008 |
| 7322056 | Adult bed An over-bed structure for a bed a bed including such a structure provides a plurality of members in a predominantly horizontal array supported on bed corner posts at a height above the mattress height. The horizontal array of members may be used as supports by perso... | 01/29/2008 |
| 7316238 | Tent with a repositionable floor A tent having a repositionable floor, the floor preferably including a pair of subpanels that mate together and form a water-resistant seam. The subpanels can be repositioned within the interior of the tent or exteriorly of the tent. Additionally, each floor subpane... | 01/08/2008 |
| 7231954 | Barrier A portable barrier panel for providing privacy to a screened area comprises a plurality of vertical support tubes. The portable barrier panel further comprises a plurality of elongate legs having an adjustable length. The elongate legs attached to a lower portion of... | 06/19/2007 |
| 7219681 | Canopy tension adjuster A tent that includes a swivel portion is disclosed. The tent includes a canopy, a plurality of tent frame components and a swivel portion coupled to at least one of the tent frame components and the canopy. The swivel portion pivots between a relaxed position in whi... | 05/22/2007 |
| 7188636 | Containment cart A portable enclosure apparatus is provided with a frame assembly having a bottom wall, an upper frame member and a single pair of vertical support members. The support members are easily length adjusted by a single user to vary the height of the system while in use.... | 03/13/2007 |
| 7134444 | Environmental containment unit A portable enclosure, easily erectable and collapsible, to provide environment control and prevent contaminants from being released from the enclosure. The enclosure provides a flexible envelope attached to the interior of the space defined by vertical and horizonta... | 11/14/2006 |
| 7074141 | Adjustable and portable soccer goal and molded joint connectors associated therewith An adjustable and portable soccer goal formed from tubular members in a horizontal, vertical and rearward slanting configuration. Segments of the members are used to form the members in varying sizes by adding or taking away segments vertically, horizontally and inc... | 07/11/2006 |
| 7047991 | Bed enclosure A bed enclosure comprising a frame, a tent supported by the frame, and a mattress cover is disclosed. The frame employs a pair of opposed upright end members, an upper support bar connecting the upright end members, and an attachment bar connected to at least one of... | 05/23/2006 |
| 7007706 | Shelter structure A shelter structure having a pair of end frames and a canopy frame interconnecting the end frames. There are also provided a plurality of adjustable bracing members interconnecting frame members of the canopy frame. The adjustable bracing members may be tensioned du... | 03/07/2006 |
| 6938632 | Hunter concealment system A hunter concealment system for effectively concealing a hunter without physically interfering with the hunter. The hunter concealment system includes a frame structure having a plurality of openings, a first rail and a second rail on opposing sides of each opening,... | 09/06/2005 |
| 6926020 | Vertically stacked collapsible structures Collapsible structures are provided having at least one lower panel, each panel having a foldable frame member having a folded and an unfolded orientation, with a fabric material substantially covering the frame member to form the panel when the frame member is in t... | 08/09/2005 |
| 6820629 | Leg assembly for a canopy A leg assembly includes at least three upright support members and at least three horizontal link members. Each of the support members includes an adjacent pair of planar first and second leg frames that are connected pivotally to each other, and at least one connec... | 11/23/2004 |
| 6799594 | Structure of a framework An improved structure of a framework is disclosed. The structure includes a plurality of connectors having provided with holes, and notch seats are employed in the framework for connecting side rods, slanting rods, and supporting device to form into a stable and con... | 10/05/2004 |
| 6550491 | Portable structure The present invention is a portable structure used for exhibition or sports (batting cage) applications including an expansion section with a plurality of expansion segments, each of which is self-contained. Each expansion segment is bounded by an upright... | 04/22/2003 |
| 6499498 | Collapsible structures having overlapping support loops Collapsible structures are provided having at least two panels, with each of the panels having a flexible loop member defining a closed loop and adapted to assume an expanded position and a collapsed position, and a fabric for partially covering the loop ... | 12/31/2002 |
| 6481451 | Vertically stacked collapsible structures Collapsible structures are provided having at least one lower panel, each panel having a foldable frame member having a folded and an unfolded orientation, with a fabric material substantially covering the frame member to form the panel when the frame mem... | 11/19/2002 |
| 6390112 | Tent door/door frame structural unit permanently attached around a tent's wall opening and which folds around a rolled up tent A tent door is hinged (44) and spring assisted to close the door and hold the door in a closed position against a bug-stopping weather-strip (18) attached to the surface of a door stop along the inside perimeter of a door frame. After entering or exiting ... | 05/21/2002 |
| 6328050 | Self-expecting foldable portable structure A self-expanding, foldable, portable structure for temporary shelter. The structure includes two opposing flexible side panels each having a continuous respective border thereabout and a continuous frame member fabricated of a foldable spring material for... | 12/11/2001 |
| 6213138 | Tent frame An improved tent frame apparatus comprising a rectangular tubular network having primarily four corner sections of tubular shape. Each of the corner pieces has a threaded hook and nut arrangement in connection with the corner in order to tightly stretch a... | 04/10/2001 |
| 6151839 | Cover A cover for a vehicle has a base at ground level and a rigid cover member having a downwardly facing mouth and movable between a lowered position and a raised position. A support is connected to and extend upwardly from the base and are arranged to suppor... | 11/28/2000 |
| 6138701 | Collapsible structures having overlapping support loops Collapsible structures are provided having at least two panels, with each of the panels having a flexible loop member defining a closed loop and adapted to assume an expanded position and a collapsed position, a fabric for partially covering the loop memb... | 10/31/2000 |
| 6085767 | Shelter A tent structure convertible from a hanging tent to a ground-based tent is herein described. The tent structure includes a top portion having slots, T-shaped connectors stitched into the base portion and resilient rods having ends arranged to be inserted ... | 07/11/2000 |
| 5975101 | Collapsible sunshields, partitions and shade structures having overlapping support loops A collapsible structure is provided that includes at least a first panel, a second panel and a third panel. Each panel includes a flexible loop member that is adapted to assume an expanded position and a collapsed position, and a fabric for substantially ... | 11/02/1999 |
| 5758196 | Outdoor studio utilizing apparatus for diffusing direct sunlight An outdoor studio for moderating the effects of direct sunlight to be utilized in camera work comprising a screening apparatus, including at least one panel of a scrim material, a self-supporting frame including a plurality of interconnected frame section... | 05/26/1998 |
| 5732726 | Cabin tent pole system A cabin tent pole system (10) using side poles (14), gable poles (16), corner hubs (18), and roof hubs (20). The corner hubs (18) have two tubular members (50) which join forming a first obtuse angle (32), where a structural web (56) may be provided to he... | 03/31/1998 |
| 5718490 | Assembled clothes storage closet A portable clothes storage closet having a compact travel condition in which the closet components are disassembled and, at the point of use, are assembled within the outer fabric cover into an optimum size providing adequate storage space, the assembly w... | 02/17/1998 |
| 5671766 | Portable, adjustable tent assembly A portable, adjustable tent assembly including a frame having first and a second opposite side sections, each having a plurality of individual support members hingedly secured with one another and structured to independently move between an extended and a... | 09/30/1997 |
| 5662132 | Structural protective shelter A structural protective shelter designed to be used around and above beds, office chairs, or anywhere an occupant may be sitting, standing, or reclining. It is ideally suited for protective use against structural building collapse resulting from disasters... | 09/02/1997 |
| 5649559 | Cover supporting erectable shelter structure A cover supporting shelter structure comprising front and rear sections arranged in back-to-back contraposition each side of a common central junction of which the respective left and right sides of each section comprise identical component parts. In one ... | 07/22/1997 |
| 5647159 | Portable hunting blind with slidably opening top A portable disassemblable blind for water fowl hunting provides a peripherally defined side frame and a slidably openable top, both supporting peripheral covering. One or more head holes are defined in the inner end of the top to allow one or more hunters... | 07/15/1997 |
| 5638848 | Tent An improved tent comprising a fabric enclosure having a floor, walls, and a roof, supported by an external, free-standing frame comprising upwardly extending leg poles, roof poles; and yoke connectors having three tubular members for releasably connecting... | 06/17/1997 |
| 5634483 | Canopy support system A canopy support system to support the canopy portion of a self-contained collapsible canopy type tent. The canopy support system has a plurality of interconnected resilient cord elements extending from a central hub to multiple support frame attachment p... | 06/03/1997 |
| 5617681 | Free-standing outdoor enclosure A free-standing outdoor enclosure is disclosed. The enclosure includes a frame having a lower section that engages the ground, a side section mounted to and extending upwardly from the lower section and a roof section attached to the side section. The sid... | 04/08/1997 |
| 5584311 | Self-supported tent frame coupler An internal, self-supporting, tent suppot framework. The collapsible framework includes a number of side and ridge support poles which mount to radially adjustable pole couplers. The couplers retain the support poles at preferred angular orientations in m... | 12/17/1996 |
| 5511254 | Portable steam sauna A portable steam sauna that provides a framing structure having a plurality of detachable framing members and coupling members wherein each coupling member releasably engages at least two framing members for manually assembling and disassembling the frami... | 04/30/1996 |
| 5490532 | Adjustable tension shelter assembly A collapsible shelter of the type having an awning and collapsible frame, the frame having either adjustable or fixed end caps at its corners bearing against reinforcing strips, and a center post unit forming a part of the frame is both spring-loaded and ... | 02/13/1996 |
| 5144780 | Portable structure A plurality of members for temporary assembly into a rigid branch structure for supporting a cover to form an enclosure, including a plurality of elongated rigid, hollow posts defined by opposed pairs of flat post walls joined together along their respect... | 09/08/1992 |
| 5096214 | Portable enclosure A portable enclosure which is suitable for use as a portable bus stop or the like and includes a frame constructed of plastic pipe, a canopy covering the top and bottom portions of the frame and a clear plastic window area located in the center section of... | 03/17/1992 |
