Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7329067 | Retractable road median A retractable road median used to divide a road that may be retracted to allow vehicles to cross it in the event of an emergency, comprising a median assembly, a frame assembly, a winch assembly, and a longitudinal base assembly. The retractable road median has mean... | 02/12/2008 |
| 7320557 | Anti-terrorism vehicle security barrier A vehicle barrier is formed with a barrier gate mounted on a pair of opposing lift arms pivotally connected via pivot shafts to a support structure. A plurality of endless bands are looped around the opposing pivot shafts and positioned to pass through compartments ... | 01/22/2008 |
| 7244075 | Telescoping bollard with screw drive The present invention includes a bollard assembly 1 containing an an elongated housing 4. A bollard 2 is spaced radially inward of the housing 4 and is axially displaceable therein. A threaded drive shaft receiver 32 is centrally f... | 07/17/2007 |
| 7143803 | Automatic and a manual lift-up ventilated gate for use with an overhead garage door An ventilated gate for use with an overhead garage door. The ventilated gate is an added feature to a conventional overhead garage door and provides ventilation to a garage where such ventilation is unavailable through a conventional overhead garage door. The ventil... | 12/05/2006 |
| 7118304 | Automatic self contained collapsible traffic barrier bollard system A collapsible traffic barrier system is disclosed which includes a steel vault having a top treated with anti-skid material. A rod is rotatably mounted to support members inside the vault, wherein the rod extends across the vault from end to end. A plurality of boll... | 10/10/2006 |
| 7114874 | Security barrier An apparatus and method for providing a portable, rapid deployable barrier system which utilizes autonomous operation and one or more gas generators to rapidly activate the barrier. The invention includes a barrier component installed beneath the ground surface or s... | 10/03/2006 |
| 7101112 | Security barrier An apparatus and method for installing and deploying a barrier utilizing one or more gas generators. The invention includes a barrier component installed beneath the ground surface or substantially parallel to the ground and raised by activation of the gas generator... | 09/05/2006 |
| 7048467 | Security barrier An apparatus and method for installing and deploying a barrier utilizing one or more gas generators. The invention includes a barrier component installed beneath the ground surface or substantially parallel to the ground and raised by activation of the gas generator... | 05/23/2006 |
| 7037031 | Automatic barricade for low water crossings An automatic barricade includes a trench across a road that is covered by a grate allowing vehicular traffic during normal dry weather. Inside the trench is a series of barricade elements, each of which includes a float. When rising water fills the trench to a prede... | 05/02/2006 |
| 7007420 | Barricade sign The present invention provides a barricade sign that is compact, portable, safe, durable, versatile, and weather/wind resistant. The barricade sign distinguishes a base and a lid that are pivotally connected together. The base supports the lid and has a compartment ... | 03/07/2006 |
| 6997638 | Anti-terrorist road block A road block having an extensible bollard that is manually or electronically actuated by a powerful spring force for slow extension, and by both the spring and a power lift for rapid extension. ... | 02/14/2006 |
| 6848856 | Rectractable pylon arrangement A pylon or barrier arrangement which is recessed into the ground or other surface and includes a post-like pylon which is movable between an extended position for control of vehicular or pedestrian traffic, and a retracted position beneath the ground. Movement of th... | 02/01/2005 |
| 6626606 | Retractable pylon arrangement A pylon or barrier arrangement which is recessed into the ground or other surface and includes a post-like pylon which is movable between an extended position for control of vehicular or pedestrian traffic, and a retracted position beneath the ground. Mov... | 09/30/2003 |
| 6409419 | Removable security post assembly A removable post assembly for securing an area, basically comprising an anchorage assembly, an elongated post member and a locking assembly to lock and secure the removable post member to the anchorage assembly. The anchorage assembly includes housing wit... | 06/25/2002 |
| 6227523 | Barrier device for preventing passage A barrier device for preventing passage, having a simple construction and capable of being lowered into a shallow trench. The barrier device, preferably constructed as a gate for preventing passage to and from buildings or property, comprises a moveable f... | 05/08/2001 |
| 6105905 | Railway gate system A railway gate system comprising a railway station having an elevated platform area for passengers to stand and a recessed area with a track and a train movable therealong. A gate has a continuous upper restraining rail along its length. A plurality of cy... | 08/22/2000 |
| 6062765 | Vehicle arresting system The present invention to provides a rapidly deployable system and method for arresting the movement of a vehicle with minimal injury to the vehicle or its occupants. The invention provides a system which applies a braking force which varies according to v... | 05/16/2000 |
| 5993104 | Non-lethal, rapidly deployed, vehicle immobilizer system There is disclosed a transportable device and associated method for impeding the motion of a land vehicle travelling along a pathway on a terrain surface. First and second supports are positioned at first and second sides of the pathway, respectively, eac... | 11/30/1999 |
| 5975791 | Vehicle security gate apparatus and method of operating same A vehicle security gate apparatus and methods are provided for inhibiting undesired access to a protected area. The vehicle security gate apparatus preferably has a barricade adapted to be positioned adjacent a roadway to thereby block vehicle passage alo... | 11/02/1999 |
| 5975792 | Citylift The present invention relates to an improved security control barrier for use in controlling ingress and egress to entranceways, exit ways, driveways, and parking spots. The device consists of a telescoping bollard inserted into a casing imbedded below gr... | 11/02/1999 |
| 5961249 | Removable and lockable barrier assembly A lockable and removable barrier assembly (10) includes a post (32) which is removably mounted in a sleeve (12). The bottom end (32B) of the post is mounted in the top end (12A) of the sleeve such that a securing opening (14) of the sleeve is aligned with... | 10/05/1999 |
| 5890832 | Method and apparatus for deflating a tire of a vehicle A method and apparatus for deflating a tire of a vehicle, the apparatus including a housing having at least one channel member and at least one opening provided in the housing, and at least one deflator connected to the housing, an actuating cam slidably ... | 04/06/1999 |
| 5762443 | Ground retractable automobile barrier A heavy duty shock absorber system for resisting large forces as may be encountered, for example, in a restraining barrier for a railroad crossing. A concrete bunker with an upstanding concrete-filled steel pipe has a hydraulic, compressive shock absorber... | 06/09/1998 |
| 5733063 | Apparatus for controlling vehicular traffic flow past a control point A vehicular traffic controller is disclosed wherein the control mechanism is positioned beneath the road surface. A plurality of transversely spaced levers extend upwardly from the surface. The levers are coupled to a shaft journaled for rotation below th... | 03/31/1998 |
| 5704730 | Vehicle arresting post When a post 10 is hit by a car in the direction indicated by arrow 42 the post moves a restricted amount in the direction of that arrow and that movement causes a support member 34 to be lifted up to raise the front wheels of the car off the ground. A pla... | 01/06/1998 |
| 5639178 | Vehicle barrier A vehicle barrier in which two arms (6, 10) linked by a linking member (14) are pivoted to a base structure (1) so that they collapse into a recess (5) in the structure to "open" the barrier. To close the barrier the arms are raised and may be latched and... | 06/17/1997 |
| 5560733 | Gas pre-charged mass counterbalancing A system for above grade and below grade installation, for rendering the mass weightless in preparation to being lifted subject to its mass inertia, wherein a pre-charge is applied to the pneumatic end of a pressure accumulator at a pre-set pressure, and ... | 10/01/1996 |
| 5520479 | Removable security post assembly A removable post assembly for securing an area including basically four parts: an underground base member, a removable post member, a hinge assembly and a locking mechanism. The underground base member includes a housing that partially receives the post m... | 05/28/1996 |
| 5474017 | Parking space holder A parking space holder including a plurality of telescoping sections that can be locked in an upright, extended position to block an entrance to a parking area or space. When unlocked, the space holder can be collapsed to a position generally flush with t... | 12/12/1995 |
| 5466088 | Vehicle barrier having a pivotal vehicle barricade and a cooperating pivotal signal barrier A vehicle barrier having a vehicle barricade and a cooperating signal barrier for roadways or the like is provided. The vehicle barricade is pivotally connected to a housing, and is pivotal between a first generally horizontal position and a second angula... | 11/14/1995 |
| 5464177 | Energy absorbing impact barrier An energy absorbing motor vehicle barrier includes a collapsible energy absorption assembly which is stored in a vault in the ground. Upon deployment, the energy absorption apparatus is lifted out of its vault, where it thereby expands and deploys. The en... | 11/07/1995 |
| 5438799 | Arrangement with a device pivoting between two positions such as a barrier arrangement swinging between a position forbidding the access to a reserved area and an access clearing position An arrangement with a barrier device pivoting between a position preventing the access to a reserved area and an access clearing position, comprising two bow-shaped pivot arms, a drive device for pivoting the barrier device and means for actuating this dr... | 08/08/1995 |
| 5425595 | Pop-up traffic control device A pop-up traffic control device (10) is raised above or withdrawn below the pavement surface through a bore in the cover (18). A lead screw (16), rotated by power source (30), raises a traffic marker tube (12) by a follower tube socket (14) attached to th... | 06/20/1995 |
| 5419537 | Pop-up stock guard A portable cattle guard is provided which includes an assembled rectangularly shaped base member. Contained within the confines of the base member are a pair of inclined cattle ramps movably connected along their longitudinal axis to a smaller, spring bia... | 05/30/1995 |
| 5365695 | Parking place obstruction Theft preventing means at a parking lot comprising a hindrance means (10, 30) raisable from a retired position and lockable in a raised position. The hindrance means comprises a tubular part (10) depressed into the ground at the parking lot, and a post (3... | 11/22/1994 |
| 5365694 | Vehicle anti-theft parking space device A vehicle anti-theft parking space device including a vertically slideable post telescopingly received in a receptacle base securely mounted underground from ground level in a driveway and the like so that the post can be raised and locked in the raised p... | 11/22/1994 |
| 5309674 | Parking prohibition device A parking prevention means comprises a housing (1) containing a power supply, a controller signal receiver unit, said signals controlling a motor coupled to a shaft (8) bearing a movable part (2) which the motor moves from a substantially horizontal posit... | 05/10/1994 |
| 5245787 | Cable gate apparatus A cable gate is arranged to include a plurality of spaced housings, with the first housing including a lift arm, the lift arm providing guidance for a gate cable directed therethrough, with the gate cable including a second distal end mounted to the secon... | 09/21/1993 |
| 5228237 | Vehicle barrier A vehicle barrier includes a barrier plate pivotally attached to a base support for movement between a horizontal non-operative position and an angularly operative position, a brace extending rearwardly from a pivotal support secured to a rear surface of ... | 07/20/1993 |
| 5203544 | Cattle guard The disclosed cattle guard includes a base and grills which may easily be removed for cleaning without disturbing the adjacent roadway. The cattle guard includes side wings which are attached to the base to ease the removal of the grills. In a further asp... | 04/20/1993 |
