Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7509989 | Window blind system A unique window blind system has two triangular panels. Each panel has a plurality of foldable sections bundled together at one fixed end and the remainder portion are unfoldable to cover a diagonally opposite triangular half portion of the window opening. The panel... | 03/31/2009 |
| 7261137 | Retractable blind assembly A retractable blind assembly including a top section (3,103) with a vertically-extending blind covering material (23,123) extending between a fixed inclined head rail (5,105) and a middle rail (7,107) that is pivotable with respect to the... | 08/28/2007 |
| 7185667 | Tent frame and canopy The present invention provides a tent frame comprised of support frames having a side support and roof support. The spans of the support frames can be adjusted perpendicular to the ridge line without substituting structural members of different length. The tent fram... | 03/06/2007 |
| 7128120 | Assembly of sashes for sliding glass doors An assembly of sashes containing investitures, such as venetian blinds and/or mesh screens, for application adjacent the inside surfaces of sliding glass doors. In one embodiment, the sashes are suspended from inner and outer tracks of a rail in sliding overlapping ... | 10/31/2006 |
| 7100780 | Display assembly A display assembly including an upper channel, a lower channel and a plurality of display panels. The upper channel includes longitudinal first and second upper tracks oriented parallel and disposed immediately adjacent. The lower channel is disposed substantially v... | 09/05/2006 |
| 7047992 | Lawn chair screen and cover The lawn chair screen and cover is an enclosure system for lawn or folding chairs to protect the occupant from flying insects. The lawn chair screen and cover is made of fabric mesh and supported by a frame structure that may connect to the chair by rope, hook and l... | 05/23/2006 |
| 7011356 | Window suspension for vehicle soft top A system for suspending a rigid panel in an opening formed in a barrier structure. The system comprises a sleeve of flexible material having an anchor portion attachable to the perimeter of the opening and a grip portion opposite the anchor portion. The grip portion... | 03/14/2006 |
| 6968657 | Patio door assembly with extruded plastics components Sections of extruded rigid plastics material form a rectangular main frame including a pair of vertical jamb members, a top head member and a bottom sill member connected by welded mitered corners. An extruded plastic astragal member is spaced between the jamb membe... | 11/29/2005 |
| 6810937 | Window suspension for vehicle soft top There is disclosed a system for suspending a rigid panel in an opening formed in a barrier structure. The system comprises a sleeve of flexible material having an anchor portion attachable to the perimeter of the opening and a grip portion opposite the anchor portio... | 11/02/2004 |
| 6799404 | Wall panel assembly and method of assembly A wall assembly includes at least two panel elements which are configured for contiguous placement adjacent to one another. Each of the panel elements defines a hollow internal passageway. The panels are configured to permit a contiguous placement whereby the respec... | 10/05/2004 |
| 6571851 | Covering for a simulated divided light architectural opening and systems for mounting same Various embodiments of an architectural covering insert primarily adapted for use in simulated divided light openings is disclosed. The insert includes an outer framework with horizontal and vertical dividers, a plurality of horizontally or vertically dis... | 06/03/2003 |
| 6546988 | Window suspension for vehicle soft top There is disclosed a system for suspending a rigid panel in an opening formed in a barrier structure. The system comprises a sleeve of flexible material having an anchor portion attachable to the perimeter of the opening and a grip portion opposite the an... | 04/15/2003 |
| 6497265 | Screen assembly The invention provides a screen door system for double-hung entry doors. The screen door system comprises an inner screen assembly containing a frame member carrying a screen member, an outer screen assembly containing a frame member carrying a screen mem... | 12/24/2002 |
| 6354043 | Privacy screen and method for systems furniture and the like A privacy screen is configured for use with systems furniture and the like, such as post and beam arrangements that spatially partition an open office space into multiple workstations each having an interior with an opening into an adjacent space. The pri... | 03/12/2002 |
| 5551501 | Screen assembly The invention provides a screen door system for double-hung entry doors. The screen door system comprises an inner screen assembly containing a frame member carrying a screen member, an outer screen assembly containing a frame member carrying a screen mem... | 09/03/1996 |
| 5178199 | Bi-parting shutter system A bi-parting shutter system having two slidably displaceable shutters connected by a flexible belt arranged in a track and looped around two freely rotatable pulley wheels. The belt defines a first belt run connected to a first shutter by a first attachme... | 01/12/1993 |
| 5078195 | Double-walled pleated curtain A double-walled curtain of pleated material, wherein at least one fold of pleated material of the one wall is connected by means of two parallel connecting strips (10,11) to one or more folds of the other wall for the forming of a module, whereas the outw... | 01/07/1992 |
| 4842034 | Window shade A window shade construction comprises a first pleated shade member having one end thereof coupled to a first header and a second pleated shade member having one end thereof coupled to an opposite end of the first shade member. Cords are operatively couple... | 06/27/1989 |
| 4581089 | Glazing system and method of installation An improved glazing system wherein glass panels are secured to a frame member in an edge-to-edge sealed relationship. A first glass panel is bonded to a frame member such as a vertical mullion using a sealant which adheres to the edge of the first glass p... | 04/08/1986 |
