Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7617857 | Illuminated window blind assembly An illuminated blind assembly having either horizontally oriented slats or vertically oriented slats. The slats have structure that allows them to be illuminated. The slats can be A.C. or D.C. powered. The window blind assembly may have a housing containing recharge... | 11/17/2009 |
| 7398816 | Window shade A window shade (16) including a sheet of translucent shade material (1) to provide shade from light, a panel (3) with an electrically powered motor, light-emitting diodes (LED's) (6) and a speaker (11) for producing motion, light a... | 07/15/2008 |
| 7395776 | Road safety system and methods of use thereof Described herein is a road safety warning system and methods of use thereof. The warning system includes a housing; a warning sign comprising a first end and a second end; and a means for extending and retracting the warning sign from the housing, wherein one or mor... | 07/08/2008 |
| 7334624 | Safety gate A gate having a latching mechanism which requires two distinctly different unlatching movements which occur in distinctly different directions, but where both of these unlatching movements can be performed with the use of only one hand. In addition, timer/alarm capa... | 02/26/2008 |
| 7256692 | Anti-tamper apparatus One apparatus embodiment includes a patterned electrically conductive layer, a power source, and an actuator. The power source provides an electrical signal to the electrically conductive layer. The monitoring unit monitors the electrical signal and initiates an act... | 08/14/2007 |
| 7249909 | Vehicle restraining system The specification and drawing figures describe and show a vehicle restraining system that includes a truss assembly. A rotateable drum is repositionable on the truss assembly. A gravitationally deployable vehicle restraining device is removably attachable to the dru... | 07/31/2007 |
| 7178792 | Child safety barriers A child safety gate includes a flexible barrier that is retractable into a housing and extendable across a passageway to inhibit passage by a child. An electrically operable extension lock solenoid inhibits barrier extension until activated by a parent. The gate inc... | 02/20/2007 |
| 7151450 | Door with a safety antenna A door system includes an antenna-based proximity sensor with a releasable electrical connector that enables the sensor to function with a breakaway feature of the door. The sensor includes a signal generator and a door-mounted antenna for sensing a body or an obstr... | 12/19/2006 |
| 7131479 | Window covering having indicator markings A covering material for a window covering assembly is provided that includes a plurality of formations, wherein an indicator marking is placed on the covering assembly at a known increment of the formations. The method of making the covering material includes, provi... | 11/07/2006 |
| 7109885 | Portable expandable screen A portable expandable screen for blocking passing motorists' and pedestrians' views of accidents on a roadway to prevent rubbernecking and promote traffic flow and increased highway safety. The portable expandable screen has a plurality of panels assembled in a tele... | 09/19/2006 |
| 7082196 | Flexible structure, hinge, shutter, mobile communications apparatus and mobile telephone The invention relates to a flexible structure, a hinge and a shutter comprising such flexible structure. The invention further relates to a mobile communications apparatus and a mobile telephone comprising such hinge or shutter. The flexible structure comprises a pl... | 07/25/2006 |
| 7044732 | Rolling process cover A cover for the opening of a process tube of a furnace used in semiconductor manufacturing is comprised of a substantially continuous sheet of metal so that it may be rolled opened and closed while being against the opening of the process tube by a guide frame. The ... | 05/16/2006 |
| 7045764 | Passive detection system for detecting a body near a door A detection system for detecting a body near a doorway includes two detectors having one or more activation lines that overlap each other. With certain mounting arrangements, the detectors cover areas within and on both sides of the doorway. The detectors are meant ... | 05/16/2006 |
| 6998981 | Secure screen A secure screen that includes a sheet of robust metal mesh having separate locking devices, located, but not limited to, the top, bottom, left, and right sides thereof that to provide for independent locking locations on the mesh member that are each lockable to one... | 02/14/2006 |
| 6989746 | Alarm chip and use of the alarm chip An alarm chip (10) and the use of the alarm chip (10) for giving warning of burglary or undesired entry into buildings, installations or structures, preferably by so-called shell-protection of the building, installation or structure, the alarm chip ( | 01/24/2006 |
| 6960717 | Adjustable solar panel A nonrotating adjustable solar panel for optimizing cell charging of a portable message sign, comprising a movable frame, a message sign, a solar panel, a support post attached to the underside of the solar panel by a universal joint, and a mechanism for adjusting t... | 11/01/2005 |
| 6957684 | Healing enhancement apparatus formed from multi-panel hospital bed cubicle curtain with a patient calming image Disclosed is a healing enhancement apparatus formed from a hospital bed cubicle curtain bearing a patient calming image such as an outdoor scene or other image of nature. The healing enhancement apparatus, an alternative to the sterile environment found in most hosp... | 10/25/2005 |
| 6942003 | Roll-up door curtain and guides and bottom bar therefor A roll up door assembly for covering a door space comprising a rubber sheet having vertical side edge portions with a front lock strip secured to the front surface and a rear lock strip secured to the rear surface of each vertical side edge. The front and rear locki... | 09/13/2005 |
| 6901703 | Crash protection device Doors and breakaway mechanisms for use with a door are disclosed. A disclosed door includes a panel; a guide located adjacent a doorway opening; a carriage; and a coupling releasably securing the carriage to the panel. The coupling releases the panel from the carria... | 06/07/2005 |
| 6894613 | Operator controller with combination of alert and message, operator provided therewith and method for operating same The invention relates to an operator controller for controlling an operator for a powered closure of a building or enclosure, more particularly a door operator controller, including an apparatus for informing a user as to the operating status of the operator control... | 05/17/2005 |
| 6885301 | Security system for windows A security system for detecting and expelling external intrusions at individual windows is provided. The security system includes an intrusion detection transmission system (100) having a human body detection sensor (110), an infra-red sensor (120 | 04/26/2005 |
| 6877548 | Indirect lighting system for vertical blinds and the like Indirect lighting system having an elongated housing or reflector which can be mounted on the headrail of a vertical blind or the like, with a light source disposed centrally of the housing or reflector for illuminating the surface of the blind. In some disclosed em... | 04/12/2005 |
| 6794011 | Decorative attachment for increasing visibility of screen doors A decorative attachment to improve visibility of screen doors in order to prevent inadvertent walk-through and resultant injury to persons or damage to the screen. ... | 09/21/2004 |
| 6641522 | Method and apparatus for biophilically promoting personal relaxation, for reducing physical and/or psychological personal stress and for expediting personal recovery A method and apparatus for relaxing a person in a stressful environment, such as a health care, business, hospitality or educational setting, provides a person with a choice of selecting for viewing one or more high resolution spatially open, serene natur... | 11/04/2003 |
| 6612357 | Impact detection system for industrial doors An impact detection system for an industrial door, the system including two members that are releasably coupled to each other to move together with the door as it travels, disposed beyond the doorway opening is a radiation emitter and a radiation detector... | 09/02/2003 |
| 6601634 | Illuminating window cover A window cover apparatus that includes a window cover substrate and a mechanism for adjusting the configuration of the substrate relative to a window. Illuminating material such as phosphorescent or luminescent material is provided on or in the substrate ... | 08/05/2003 |
| 6591556 | Self-centering pivotal canopy A canopy assembly for sheltering a drive-up ordering station of a fast food restaurant can pivot out of the way when impacted by a vehicle and return automatically to a centered position. A centering feature mounted to a column supporting a roof structure... | 07/15/2003 |
| 6575435 | Retractable barrier system A retractable barrier system for preventing unsupervised access to dangerous areas by children. The retractable barrier system includes an housing with an elongate perimeter wall, a bottom wall and a top wall which define an interior space; a barrier asse... | 06/10/2003 |
| 6557611 | Security window screen The present invention is an apparatus for securing a window or similar opening and includes a fair of frames slidably mated to one another. The apparatus further includes one or more sensors or switches that would be triggered in the event that the appara... | 05/06/2003 |
| 6326899 | Shutter assembly with sensor device, and related sensor device assembly A shutter assembly includes a structure which surrounds an opening and a shutter including a plurality of laths hingedly connected together at their longitudinal edges and moveable across the opening in a direction substantially normal to those longitudin... | 12/04/2001 |
| 6254527 | Apparatus for biophilically promoting personal relaxation, for reducing physical and/or psychological personal stress and for expediting personal recovery A method and apparatus for relaxing a person in a stressful environment, such as a health care, business, hospitality or educational setting, provides a person with a choice of selecting for viewing one or more high resolution spatially open, serene natur... | 07/03/2001 |
| 6209598 | Cover for concealing an insignia side of a sign The sign covering of the present invention is an all weather covering for concealing the insignia side of a sign, and more particularly a roadway sign. The covering is made of a weather resistant fabric, such as polypropylene, and is light enough for a si... | 04/03/2001 |
| 6119754 | Retractable pet/baby gate assembly with alarm A retractable gate assembly that can be mounted either on or recessed within a wall. The assembly preferably having an alarm system to notify others that the gate is being touched. The gate assembly is most commonly used as a baby-gate at the top and bott... | 09/19/2000 |
| 5930927 | Apparatus for changeable display for louvered shutter A display arrangement for sheet-type materials including a fastening system having a malleable metal hook set which supports an adhesive/magnetic sandwich for suspending a metal backing plate that magnetically retains an image affixed to a display sheet, ... | 08/03/1999 |
| 5908179 | Lighted valance A special connector for use with a drapery headrail incorporates an attachment clamp for flexible tubular lighting devices at one end of the connector. At the opposite end the connector incorporated a protuberance or some other structure for removably int... | 06/01/1999 |
| 5743317 | Impact detection system for industrial doors An impact detection system for an industrial door, the system including two members that are releasably coupled to each other to move together with the door as it travels; disposed beyond the doorway opening is a radiation emitter and a radiation detector... | 04/28/1998 |
| 5730196 | Combination ornament and safety device for attachment to screens A device for attachment to screens including a body in turn having arms by which the device is attached to the screen and legs by which the device is stabilized in position. The body preferably includes an element such as a hook such that an ornament may ... | 03/24/1998 |
| 5713621 | Vehicle rolling shutter with door-ajar and compartment light switch A vehicle rolling shutter system with magnetic door-ajar and compartment light switch. In combination with a vehicle, the rolling shutter system has a roller shutter, constructed of a number of interconnected links, for movement along guide rails position... | 02/03/1998 |
| 5692551 | Window security guard This invention is a window security guard that can be mounted by a do it yourself individual in a window. The security guard is designed so that it can be decorated to meet the decor of the room where it is placed. The security guard has a collapsible gri... | 12/02/1997 |
| 5681259 | Method and apparatus for biophilically promoting patient relaxation, for reducing physical and/or psychological patient stress and for expediting patient recovery An apparatus that promotes patient relaxation, reduces patient stress, and/or expedites patient recovery, in a health care facility or home-based convalescent environment. The apparatus includes a substantially glare-free visual display device with one or... | 10/28/1997 |
