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| Number | Title | Issue Date |
| 4239415 | Method of installing magnetic sensor loops in a multiple lane highway A method of installing an electromagnetic sensor loop in a multiple lane highway for monitoring vehicle traffic which includes the steps of placing a test loop at a desired location in a highway traffic lane approximately centrally thereof and varying the... | 12/16/1980 |
| 4236950 | Road marking machine and method A compound machine for mechanically forming traffic dividing and regulating lines on a roadway pavement, comprising a motor driven vehicle adapted to travel along a desired direction on said pavement, the machine being implemented by a first apparatus sup... | 12/02/1980 |
| 4229118 | Screed support An upstanding plate adapted for supporting one end of an elongated screed member has a flat bottom edge for sliding movement along a generally horizontal surface at the base of a foundation wall. The upstanding plate is connected to one end of the screed ... | 10/21/1980 |
| 4225266 | Method and apparatus for adjusting the elevation of manhole covers A manhole cover elevating and support ring adapted to be placed within an existing manhole frame for raising the height of a manhole cover, and a method of installing the same. A circular ring is roll formed of metal bar stock with a predetermined size ga... | 09/30/1980 |
| 4182631 | Asphalt-aggregate production In a process for producing asphalt-aggregate compositions in a conventional type dryer-mixer drum in which aggregate is exposed directly to flame and hot gases of combustion while it cascades in the rotating drum, and in which the flame and hot gases of c... | 01/08/1980 |
| 4174184 | Snowplowable pavement marker and method and apparatus for installing same A low-profile snowplowable pavement marker includes a metal base member having two arcuate-bottom keel members interconnected by an arcuate-bottom support member, the upper surfaces of the keel members respectively defining inclined ramps from a plane at ... | 11/13/1979 |
| 4172821 | Bitumen emulsions An aqueous emulsion of controlled stability is derived from a cationic bitumen emulsion and a vinyl chloride polymer made by aqueous emulsion or microsuspension polymerization using an anionic emulsifying agent. The emulsion is preferably made by adding a... | 10/30/1979 |
| 4162862 | Pavement striping apparatus and method Pavement striping tape is drawn through a guide mounted on a rolling machine by the direct action of the front pavement roller. The tape is delivered from a spool or spools on a first spindle mounted above the tape guide and the tape backing paper is auto... | 07/31/1979 |
| 4162998 | Process for preparation of asphalt-epoxy resin composition A paving composition is prepared by mixing heated asphalt with a composition comprising an epoxy resin and an amine having 2 active hydrogens and either an aliphatic hydrocarbon group having 8 to 22 carbon atoms or an alkylphenyl group in which the alkyl ... | 07/31/1979 |
| 4158515 | Method and apparatus for elevating load-bearing access devices This invention pertains to a method and apparatus whereby, when a thoroughfare is to be resurfaced, the covers for the openings that extend downwardly beneath such thoroughfares may be raised to a level corresponding to the raised level of the resurfaced ... | 06/19/1979 |
| 4151025 | Method for waterproofing bridge decks and the like Concrete bridge decks are waterproofed by first applying a primer over sound, dry and clean concrete which forms the bridge deck. A laminated membrane is then installed over the primed concrete surface, the membrane being comprised of reinforced cured and... | 04/24/1979 |
| 4143989 | Adjustable brace An adjustable brace for securing the cap portion of a catch basin used in sewer systems to enable such cap portions to remain in place during continuous pouring of curb and gutter.... | 03/13/1979 |
| 4128359 | Self-propelled concrete vibrator apparatus A self-propelled concrete vibrator machine adapted for movement along a pair of spaced-apart guide rails which are positioned on the bridge centering upon which the concrete is to be poured. The concrete vibrator machine is adapted to be moved along the g... | 12/05/1978 |
| 4127351 | Dynamic soil compaction Method and apparatus for controlling a dynamic soil compaction operation, involving striking the soil with vibrating compacting tools, monitoring the vibrational power generated by the tools or the current degree of soil compaction, and controlling the am... | 11/28/1978 |
| 4105354 | Pattern forming wheel for uncured concrete surfaces A worker ballasted, propelled and guided wheel-like tool for imprinting predetermined surface patterns upon a slab of freshly cast, smoothed, yet still plastic concrete is disclosed. The wheel includes a generally cylindrical frame which is large enough t... | 08/08/1978 |
| 4085078 | Low viscosity asphalt-rubber paving material The paving material comprises the reaction product formed by heating a mixture of paving grade asphalt and a non-oil resistent rubber to a temperature of about 350° F to about 500° F. The improvement provides for a relatively low viscosity paving materi... | 04/18/1978 |
| 4080087 | Railless walkway for the visually handicapped A railless walkway for blind and visually handicapped persons is constructed using foot plates fastened to the ground. By feeling humps made into the foot plates, the blind are guided along walkways without the use of rails or canes. Variations in the sha... | 03/21/1978 |
| 4075374 | Floor preparation and method A runny, watery, self-leveling slurry is disclosed for pouring of a floor having low sound transmissivity. The slurry includes pressure-calcined calcium sulfate hemihydrate, sand, a polymeric latex, an antifoam agent, and sufficient water to provide the s... | 02/21/1978 |
| 4069182 | Elastomeric pavement repair composition An elastomeric pavement repair composition for pavement failure and a method of preparation thereof comprising of paving grade asphalt and rubber. The asphalt is heated to an elevated temperature and the rubber is combined therewith. The resulting composi... | 01/17/1978 |
| 4066723 | Method and apparatus for making fibrous concrete A method of producing a fiber reinforced concrete structure of desired thickness including the steps of extruding a sheet of concrete substantially free of fibers, distributing an effective amount of reinforcing fibers on the sheet, repeating the foregoin... | 01/03/1978 |
| 4050839 | Process for raising manholes A process for raising manholes and manhole covers to a new grade level of a street when constructing new streets or when paving old streets, comprising the steps of placing a sealing means around the interior of the cast manhole between the lower edge the... | 09/27/1977 |
| 4024719 | Reinforced road foundation and method for making said road foundation The invention relates to a method for the preparation of a foundation, in particular, a structure serving as foundation for highways, consisting essentially of soil or other materials.... | 05/24/1977 |
| 4021393 | Method and composition for surfacing and repairing broken pavements with an elastomeric material having improved flexing properties at freezing temperatures without any significant loss of viscosity at high application temperatures A method and material is provided for surfacing and repairing broken pavements with an elastomeric paving material comprised of the reaction product between a paving grade asphalt and a non-oil resistant rubber having petroleum malthenes admixed with said... | 05/03/1977 |
| 4012247 | Method and devices for road surface marking There is described a method for road surface marking with tape material, including the steps of forming an essentially bituminous primer layer on such surface and then pressingly laying a prefabricated tape material on said primer layer, such layer being ... | 03/15/1977 |
| 4011184 | Bitumen-polymer composition A bitumen-polymer composition with improved elastomeric properties is prepared by chemically coupling a modified bitumen and a modified polymer with a metal compound wherein the bitumen and polymer are first modified by attaching to the bitumen and polyme... | 03/08/1977 |
| 4002412 | Stabilizing open graded asphalt-concrete A method is provided for stabilizing an open graded course of asphalt-concrete against lateral displacement under a moving load. The method which is suitable for use during construction of the asphalt-concrete course or on courses already completed is car... | 01/11/1977 |
| 4000000 | Process for recycling asphalt-aggregate compositions In recycled asphalt-aggregate compositions prepared by adding a suitable amount of make-up asphalt to pieces of the used composition and heating the mixture in a rotating cylindrical drum by tumbling the composition over heated pipes as it is gradually di... | 12/28/1976 |
| 3977803 | Process for developing surfaces A process for developing surfaces to determined elevations upon sound surfaces, whether or not these said sound surfaces are level or regular, said development to be done by the use of pre-set points and pre-set screeds, used either alone or in conjunctio... | 08/31/1976 |
| 3958890 | Apparatus and method for moving roadway lane dividers A roadway has a plurality of lanes defined thereon with a plurality of dividers disposed on the roadway to separate the lanes into first and second groups. A plurality of cross-beams are mounted above the roadway in transverse relationship therewith with ... | 05/25/1976 |
| 3957383 | Curb protection device and method A flexible fiberglass shield, of L-shaped cross section and conforming to the size, curvature, and shape of a molded curb between vehicular pavement and walkway areas, and a method for affixing a plurality of shields to a curb by bonding with a cushioning... | 05/18/1976 |
| 3951562 | Expansion joint An elongated expansion joint of the kind used between adjacent slabs in a road or building construction comprises, a pair of elongated anchor elements or rigid polymeric material adapted to be secured to the respective slab edges, and a laterally compress... | 04/20/1976 |
| 3939662 | Liquid impervious surface structures Liquid impervious surface structures are formed by permeating a fabric and a portion of an earthen foundation with an aqueous gel wherein the permeated earthen foundation is covered by the permeated fabric.... | 02/24/1976 |
