"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8176964 | Curtain system comprising several flat panels A curtain system includes several flat panels made of curtain fabric or other planar materials. The top of each flat panel is provided with a horizontal metal, wood or plastic horizontal slat on which the curtain fabric or flat panel hangs in a loose manner. Both en... | 05/15/2012 |
| 7458410 | Multiple door joining assembly A joining assembly for “ganging” respective doors together such that by movement of one door causes the other doors to follow. A connecting plate and a spacer plate is screwed to the bottom of a primary door while the connecting plate includes a cam follower to ... | 12/02/2008 |
| 7299852 | Vertical blind that is expanded and folded quickly and conveniently A vertical blind includes a headrail, a fixing bracket, a plurality of juxtaposed movable brackets, a drive bracket, a plurality of driven blocks, a plurality of drive blocks, a plurality of mounting seats, a plurality of shades, a pull cord unit, and a positioning ... | 11/27/2007 |
| 7270165 | Vertical curtain A vertical curtain includes a track having two ends each provided with a plurality of support brackets juxtaposed to each other, and two drawing blocks movably mounted on the two ends of the track and connected to one of the support brackets to push the support brac... | 09/18/2007 |
| 7174944 | Triple slide assembly for sliding doors A triple slide assembly for a three panel door system that mounts on a two track header and allows the panels to slide easily and sequentially with an interlocking function that provides a means to align the panels. The outer rails or panels each have an inward faci... | 02/13/2007 |
| 6990771 | Inertial control system for opening and closing multiple sliding doors in a common direction An access system for a building structure includes an access opening formed in the structure and a horizontally oriented track extending across the opening. Panels are slidably mounted on the track. A pulley—track system opens and closes the panels. The system is ... | 01/31/2006 |
| 6968645 | Sliding service window In accordance with one embodiment of the present invention, a sliding, bi-parting, service window may be operated by pressing on a push operator. In response to such push operation, a pair of bi-parting windows may be caused to slide apart sufficiently to provide a ... | 11/29/2005 |
| 6923238 | Multi-panel door with an auxiliary drive mechanism A multi-panel sliding door includes a main drive to directly move a leading door panel and includes an auxiliary drive to smoothly accelerate a lagging door panel. In some embodiments, the auxiliary drive includes a hanging weight that urges the lagging panel to its... | 08/02/2005 |
| 6892783 | Multiple panel track system for a window covering assembly A nested multiple panel track system supporting a desired window covering provides for a window covering assembly capable of holding even an extremely heavy window covering, and providing an efficient operation therefor. ... | 05/17/2005 |
| 6360487 | Resilient door panel A resilient, insulated door panel for a sliding door includes a resilient core protected by a compliant outer covering with a seal disposed about the perimeter of the panel. The panel has sufficient resilience to recover from an impact that temporarily de... | 03/26/2002 |
| 6352097 | Multi-panel door with an auxiliary drive mechanism A multi-panel sliding door includes a main drive to directly move a leading door panel and includes an auxiliary drive to smoothly accelerate a lagging door panel. In some embodiments, the auxiliary drive includes a hanging weight that urges the lagging p... | 03/05/2002 |
| 6209612 | Locking device for a door system Door system with a locking device which has top and bottom locking elements which can be displaced by a drive unit to realize a door system which is simple and easy to install, whereby the functional and operational reliability of the system are increased... | 04/03/2001 |
| 6155327 | Counterbalance system adjustment mechanism for rollup door A counterbalance spring adjustment mechanism, particularly adapted for a rollup type upward-acting door which is supported between spaced apart wall brackets on a rotatable shaft. One end of the torsion spring is connected to a hub including a tubular hub... | 12/05/2000 |
| 5832980 | Floating pivot sliding and swinging panel construction for doors and the like A swinging slide panel construction has panels which can slide relative to one another to open half of an opening, such as a doorway, and then swing together in a break-away mode for full access to the opening. One panel, which is pivotally fixed in the o... | 11/10/1998 |
| 5233724 | Cushioned stop member for sliding panel A cushioned stop member is provided for attachment to a sliding panel for limiting movement of that panel relative to opposed abutment surfaces on a similar panel; this allows a series of sliding panels to be used in self aligning manner. The stop member ... | 08/10/1993 |
| 5109910 | Vertical curtain panel assembly A vertical curtain panel assembly, to be used to cover windows, sliding glass doors, etc. with a plurality of large, wide, highly decorative panels. The panel assembly includes a plurality of interconnectable frame units having a plurality of channels wit... | 05/05/1992 |
| 5038531 | Wall structures An assembly for forming removable, non-load bearing walls, such as partitions for offices, fairs, exhibitions, etc., consists of a plurality of generally modular panels slidably disposed between upper and lower support rails. The panels include a substant... | 08/13/1991 |
| 5022454 | Multi-panel collapsible door assembly having a door storage system A collapsible double door assembly includes a number of serially connected panels each provided with a pair of inwardly and outwardly deviated pivotal suspension rollers, a horizontal guide rail constituted by an inner rail member and an outer rail member... | 06/11/1991 |
| 4998577 | Device for stabilized opening and closing of a sliding panel A device for stabilized opening and closing of a sliding panel includes a gear-like driving roller made of synthetic resin and provided with a number of low profile teeth arranged with a fin and constant pitch. The driving roller is arranged on the inside... | 03/12/1991 |
| 4841689 | Two-shell telescopic element Presented is a two-shell telescopic element for a movable partition that has a wall section and a horizontally extendable telescoping part. The cover panels of the telescoping part are disposed on the telescoping part in transversally movable fashion to t... | 06/27/1989 |
| 4833840 | Telescoping wall element of a movable partition Presented is a two-shell telescopic element of a movable partition containing (holding) two external cover panels on the supporting frame of a wall section, between which, at the upper and/or lower edge, are guided packing strips, and that are extendable ... | 05/30/1989 |
| 4457106 | Shutter system A system for suspending at least one shutter and for elevating the shutter or shutters for use as an awning. The shutters are slidable along rails and are engageable so as to cover a predetermined width when closed.... | 07/03/1984 |
| 4221255 | Decorative panel assembly A decorative panel assembly wherein a valance board receives and maintains a plurality of tracks, the tracks receiving rollers connected to decorative panels. The panels and valance board are provided with edge clamps, acting as mouldings, or used for sec... | 09/09/1980 |
| 4114674 | Expandable door An expandable door features vertically telescoping door sections, having flexible wire guides to insure engagement of the door sections during raising and lowering operations, with a minimum of physical contact and force exerted between adjacent sections.... | 09/19/1978 |
| 4072179 | Structure adapted to be successively drawn and telescoped A structure comprising a plurality of partition members in sheet form each providing a pair of spaced opposite partition faces connected at one side and non-connected at the other side. These partition members are grouped into a telescoped assembly by gui... | 02/07/1978 |
| 4033073 | Shutter, grille or the like A movable member of a grille or shutter is slidable with respect to a stationary member through tongue and groove or other slidable connections, between a fully open and a fully closed position. Both the movable member and the stationary member are provid... | 07/05/1977 |
| 3999489 | Sliding wall arrangement for covered railroad freight cars The sliding wall includes a central wall section and two end wall sections, with the sections being co-planar in the closed state and movable, transversely of the car, out of the closing plane and into a shifting plane in which they are displaceable longi... | 12/28/1976 |