Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7401997 | Protruding road warning device A protruding road warning device includes a base plate, at least one mounting spike, a cushioned pad and at least one reflector. The base plate has a bottom surface, a top surface and a breakable segment. The bottom surface has multiple fastening recesses, at least ... | 07/22/2008 |
| 7357366 | Sports pole mounting structure A sports pole mounting structure for supporting sports equipment in a pool environment capable of repeated assembly and removal. The mounting structure includes a bracket and a collar securely engaging existing in-ground sleeves traditionally found around pool envir... | 04/15/2008 |
| 7347643 | Road stud Provided herein is a road stud used to recognize the central line or lanes of a road. The road stud is configured in the form of a screw to be securely fixed to and buried in a road. The road stud includes a self generator to light up an illuminating element all the... | 03/25/2008 |
| 7333631 | Landmark, apparatus, and method for effectively determining position of autonomous vehicles A landmark used to effectively determine the location of an autonomous vehicle, and a self-localization apparatus and method using the landmark are provided. In the self-localization method, first, first and second outer line information and shape information are ex... | 02/19/2008 |
| 7316519 | Paving member A paving member (2) comprising a surface (4) for being walked on, an image (6) below the surface (4), and a source of light for illuminating the paving member (2), the paving member (2) being of such a material and construct... | 01/08/2008 |
| 7237979 | Security barrier A barrier for stopping the progress of vehicles, comprising a pivoted barrier adapted to pivot about a non-vertical axis from a first position generally alongside a carriageway to a position where it at least partially blocks the carriageway, and adapted to move bet... | 07/03/2007 |
| 7169831 | Pavement marking composition comprising ceramic fibers The invention relates to a pavement marking composition comprising ceramic fibers. The ceramic fibers are preferably randomly dispersed within a polymeric material. The polymeric material preferably comprises a substantially non-crosslinked elastomer. The pavement m... | 01/30/2007 |
| 7137754 | Road marking system A road-marking system has at least a first lighting module (4) provided in a road surface (1). The lighting module (4) is provided with a plurality of light emitting surfaces (14, 14′, . . . ). The lighting module (4) has connect... | 11/21/2006 |
| 7004439 | Mounting bracket including impact release safety mechanism A mounting bracket including an impact release mechanism for use in connection with helmet-mount lights and other devices. In one embodiment, the mounting bracket is a two-piece assembly comprising a base plate, an upright bracket configured to detach from the base ... | 02/28/2006 |
| 6914540 | Traffic area signage systems A signage system for a traffic area, the traffic area comprising visually-identifiable boundary markers, the signage system having sign means at the boundary markers, the sign means visually viewable by an occupant of a vehicle adjacent the boundary markers. The sig... | 07/05/2005 |
| 6851888 | Pavement marker A pavement marker has a base having at least one opening formed therein. A groove is formed in the base substantially adjacent the opening. The pavement marker further includes a cover for covering the opening in the base. The cover is formed with at least one energ... | 02/08/2005 |
| 6726398 | Road sign device and spontaneously emitted light sign system used for the device A road marking device comprises: a tubular, bottomed casing which has an open top end; a cover mounted over an opening in the casing and having a window; a self-luminous marking system composed of a condenser housed in the casing, an illuminant which emits light by ... | 04/27/2004 |
| 6576074 | Pavement marking system A pavement marking system is disclosed comprising a legend layer and a background layer of a contrasting color, preferably black. The background layer has edges that extend beyond the edges of the legend layer such that the background layer prevents conta... | 06/10/2003 |
| 6558069 | Pavement marker with improved daytime visibility A pavement marker having improved daytime visibility comprises a transparent fluorescent top portion having smooth flat parallel top and bottom surfaces with a front edge therebetween and air interfacing most of the bottom surface. Light received by the s... | 05/06/2003 |
| 6511256 | Pavement marker with improved daytime visibility and fluorescent durability A pavement marker having improved daytime visibility comprises a transparent fluorescent top portion having a top surface and a front edge. Light received by the top surface of the top portion results in light being directed internally through the top por... | 01/28/2003 |
| 6488441 | Method and means for forming road signs According to the invention, blocks (10) are formed of rigid colored material shaped as mosaic components of the road sign; the sign is then composed by arranging the blocks (10) as a mosaic, and incorporatedly inserting the blocks (10) into the upper laye... | 12/03/2002 |
| 6478506 | Roadway pavement marker A roadway pavement marker includes a base that supports a flexible membrane. The membrane supports an anchor plate, and the anchor plate in turn supports a reflector housing. The reflector housing is releasably secured to the anchor plate by one or more m... | 11/12/2002 |
| 6439803 | Snowplowable pavement marker A very low-profile snowplowable pavement marker mounted in an elongated groove formed in a highway pavement, the groove extending longitudinally of the highway and exposing the reflective highway marker to the headlights of oncoming motor vehicles when th... | 08/27/2002 |
| 6315491 | Roadway marker device A roadway marker device for marking a roadway with marker embedded in the roadway. The roadway marker device includes an elongate member having a first end and a second end. The elongate member has a top wall and a bottom wall. A reflective strip enhances... | 11/13/2001 |
| 6240689 | Utility standard A utility standard assembly having a tubular post member which is circumscribed and compressively held at its base end by a clamp member. The clamp member and tubular member assembly are the received into a clamp receiving pocket in a modular, structural ... | 06/05/2001 |
| 6200064 | Road marker with collar A road marker having a collar for mounting a reflector to the surface of the road. The collar is a generally flat disk, having a pair of diametrically opposed projections. The projections have inner planar surfaces to receive a reflector therebetween and ... | 03/13/2001 |
| 6102612 | Controlled tire impact pavement marker A pavement marker comprising a base member and a signal device for sending a light signal to a driver of an oncoming vehicle further includes a longitudinally extending tire directing hood member that directs tire contact away from the upper edge, upper p... | 08/15/2000 |
| 6062766 | Raised pavement marker A raised pavement marker includes a reflector assembly that is resiliently supported by a membrane, that in turn is supported by a frame. The reflector assembly includes a skirt that overlaps the membrane, thereby allowing large-area reflectors and low-an... | 05/16/2000 |
| 6059488 | Raised road marker A raised road marker has a flat bottom surface with an outer periphery. At least one cavity opens onto the bottom surface laterally inwardly of the periphery and extends upwardly into the marker body. A venting groove extends along the bottom surface from... | 05/09/2000 |
| 6036400 | Quick release delineator apparatus An impact recovery delineation quick connect/disconnect adapter system having plate studs and a pin that when added to the impact recovery delineation system allows the delineation panel, support post and load cell to be quickly connected to and/or discon... | 03/14/2000 |
| 5873674 | Roadway safety warning system and method of making same A roadway safety warning system and method of making same utilizing various ones of marking assemblies applied to a roadway surface to provide a warning system. The marking assemblies means includes 1) chevron marking assembly; 2) diagonal marking assembl... | 02/23/1999 |
| 5868630 | Golf course indicator device A golf course indicator for providing information to golfers to help in club selection and understanding course layout. The indicator includes a generally planar upper surface which includes indicia for providing information to a golfer and a post mount f... | 02/09/1999 |
| 5816737 | Signal assembly for roadway markers An improved, unitary signal assembly operable to replace removeable signal assemblies of sub-surface mounted roadway markers or alternatively capable of being mounted directly to pavement surfaces comprising a load carrying, rigid, compression resistant, ... | 10/06/1998 |
| 5593156 | Ground marker and methods of using same to mark distances and/or advertise on a golf course A ground marker is provided for displaying distance and advertising information on a golf course. The marker has a body that is dimensioned to fit entirely within a predetermined size hole defined in the ground. The body has a top portion and a base that ... | 01/14/1997 |
| 5560732 | Safety delineators A safety delineator is provided having either a conical or a tubular body portion, which has an improved handle feature permitting easy and comfortable full hand gripping of the delineator. The invention additionally solves a longstanding problem common t... | 10/01/1996 |
| 5540517 | Pyrotechnic patty and method for attaching pavement markers A pyrotechnic patty for rapidly attaching a raised pavement marker to a paved roadway surface is disclosed. The pyrotechnic patty consists of a stable mixture of oxidizer and fuel formed into a fattened shape that, once ignited, deflagrates rapidly produc... | 07/30/1996 |
| 5470171 | Configurable highway divider system A configurable highway divider system features a plurality of markers associated with a lane of traffic, each marker including one or more indicators observable by a vehicle operator traveling on the lane associated with the markers, and a indicator chang... | 11/28/1995 |
| 5470170 | Pavement markers and method for making A pavement marker structure and method for making same is provided wherein a pre-molded base block is clad with an in situ molded cap structure. Use of epoxy resins is avoided, and the pavement marker structure is durable and resists attack by moisture.... | 11/28/1995 |
| 5354143 | Pavement markers and method for making A pavement marker structure and method for making same is provided wherein a pre-molded base block is clad with an in situ molded cap structure. One or two retro-reflective flattened reflectors are preferably mounted as insets between the base block and t... | 10/11/1994 |
| 5242242 | Traffic control marker apparatus A traffic control marker includes an elongate flexible arrow member arranged for positioning upon a road surface to direct traffic flow therethrough. The marker provides for a removable forward head relative to the marker for use of the arrow head relativ... | 09/07/1993 |
| 5205236 | Stiffener core for a highway marker An impact resistant marker for highway marking has facilities that cause it to deflect if struck by a vehicle. The marker has a base and a post. The post connects to the base by means of a flexible element. The post has a longitudinal hole through it. A s... | 04/27/1993 |
| 5197819 | Mounting base for highway markers An improved apparatus for attaching a flexible marker shaft to a roadway. The flexible lower part of the marker shaft slides over a mandrel, and into a maker shaft cavity. Locking wedges are positioned in the cavity to surround and support the flexible ma... | 03/30/1993 |
| 5069577 | Flexible raised pavement marker Raised pavement marker useful in geographic areas where snow plows are used and comprising hollow base with an open bottom and dome top, characterized by: A. base cross section being closed curved shape like cylinder; B. dome having: 1) outer surface which app... | 12/03/1991 |
| 5030029 | Road barrier An improved road barrier for channelizing traffic is provided and consists of a hollow pyramidal structure having a frustrum top. A base is formed on the bottom for stabilizing the pyramidal structure on a flat surface. A plurality of spaced apart bands a... | 07/09/1991 |
| 5026204 | Traffic control element and method of erecting and stabilizing same A two-piece, detachable traffic channelization element having an improved base element. The base element has a low profile, dome-like configuration with a ballast storage chamber. The storage chamber may be completely filled with a sand ballast and sealed... | 06/25/1991 |
