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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 7302986 | Combination security and insect guard insert The present invention comprises an insect screen and a security barrier contained within a removable frame installable to replace a conventional screen or storm window, the assembly functioning both as a barrier to insect penetration, and as a security barrier to de... | 12/04/2007 |
| 6732640 | Screen printing frame having prestressing reinforcement A frame for supporting the screen of a screen printing machine having elongated frame members coupled together each providing support for an edge of the screen. The frame further includes a reinforcing member supported by the frame to extend in intimate proximity al... | 05/11/2004 |
| 6520240 | Bracing system for canvas stretcher frames A bracing system for canvas stretcher frames allows for positioning of one or more braces in a stretcher bar frame, to prevent inward pulling of the stretcher bars under canvas tension. The braces are modular in design and allow convenient assembly of mul... | 02/18/2003 |
| 6321823 | Partition mount In a spring-loaded curtain mount, includes a pole interface at a proximal end, a compressive mechanism, and a head at a distal end. The pole interface is adapted to recieve the end of a standard length adjustable pole or a painter's pole. The compression ... | 11/27/2001 |
| 6302785 | Foundation vent with improved net free ventilation area An improved foundation vent with increased net free area is provided. The foundation vent has a frame that surrounds and defines an opening and a grill supported by the frame and spanning the opening. The grill has an inside face disposed on the inside of... | 10/16/2001 |
| 6230455 | High impact flanged window screen A high strength window screen frame that includes an extruded metal frame that surrounds a window opening in a building. The frame defines an opening. A screen plate portion of the extruded metal frame is provided on the frame proximate the opening. A fla... | 05/15/2001 |
| 6127019 | Braced art surface A rigid braced art surface that will support sculptural objects, metal fasteners, foams, paints, plasters, and the like. The braced art surface consists of a rigid working surface supported by back bracing that runs horizontally, vertically, and diagonall... | 10/03/2000 |
| 5924469 | Partition mount In a spring-loaded curtain mount, the mount includes a pole interface at a proximal end, a compressive mechanism, and a head at a distal end. The pole interface is adapted to receive the end of a standard length adjustable pole or a painter's pole. The co... | 07/20/1999 |
| 5867846 | Shower door assembly A lightweight, low cost shower door assembly for enclosing a tub or shower enclosure having sides and a base. It includes an upper support member adapted to be positioned against opposing sides of the enclosure and a lower support member adapted to be pos... | 02/09/1999 |
| 5620040 | Foldable cargo cover A foldable cargo cover comprising a pliable sheet having a plurality of elongate stiffener members attached thereto at selected locations thereon. The stiffener members are of sufficient rigidity to maintain the sheet in a substantially planar configurati... | 04/15/1997 |
| 5526866 | Tonneau cover fastening system A tonneau cover for covering an opening in a structure, the opening having a periphery, the structure having a front shelf, side rails, and an end gate, and the cover including a fastening system for securing a frame to a flexible fabric web, the improvem... | 06/18/1996 |
| 5379564 | Self-reinforcing mesh partition A partition for forming fencing, or cages for warehouses, repair shops and the like, typically comprises a plurality of spaced, vertical posts and at least one mesh wall vertically positioned between the spaced, vertical posts and attached to them. The me... | 01/10/1995 |
| 5275458 | Tonneau cover assembly A tonneau cover assembly is provided having a rail network, a plurality of clamps, one or more crossbars and a flexible top. The rail network is secured about the bed of a pick-up truck, using clamps. Thus, no holes are made in the vehicle, and the entire... | 01/04/1994 |
| 5141046 | Security screens Improvements to the design of metal frames of security screens are disclosed. The improvement, each of which may be applied individually or in conjunction with any combination or all of the other improvements, include a retainer groove in the frame into w... | 08/25/1992 |
| 5097761 | Screen printing frame structure A frame structure for supporting a stretched printing screen of the kind used in the so-called silkscreen printing process. The frame structure is intended for use in screen printing relatively large surface areas, and comprises frame members which are jo... | 03/24/1992 |
| 4724181 | Membrane stabilizer A device is provided for stabilizing a flexible membrane secured within a frame, wherein a plurality of elongated arms are disposed radially from a central hub which penetrates the membrane, said arms imposing alternately against opposite sides of the mem... | 02/09/1988 |
| 4330022 | Transparent overlay device for protecting mesh screening The device consists of a pair of semicircular, transparent sheets of resilient plastic material, one of the sheets having molded on one surface a series of pegs which are insertable through the mesh of the screening. The other sheet has a corresponding pa... | 05/18/1982 |
| 4255886 | Artist canvas stretcher frame brace bracket An artist canvas frame comprises the usual rectangular frame members attached at four corners and having a canvas stretched around the periphery and held in place by staples or some other suitable means. To improve the stability of the frame a brace is pr... | 03/17/1981 |
| 4002195 | Middle rail assembly for use in screen doors and sashes A middle rail assembly for centrally clamping a screen within a frame structure is disclosed. The middle rail includes a supporting member, a C-shaped cover and a plurality of coupling means tightly received into apertures formed in the supporting member.... | 01/11/1977 |
