Abstract: Disclosed herein is a pavement marker for engagement with an underlying roadway for providing a marking visible from an oncoming vehicle on the roadway surface. The pavement marker comprises a lens member of light-transmitting synthetic resin including a front face having a light receiving and refracting portion adapted to be inclined at an angle of at least 15.degree. and a rear face having reflex reflective means for reflecting light transmitted through the light receiving and refracting portion back to the source. In one embodiment, the pavement marker has an abrasion-limiting glass sheet having a thickness no greater than about 15 mils fixedly disposed on the light receiving and refracting portion and preferably under compression throughout the expected temperature range to which the pavement marker is exposed in use. In another embodiment, abrasion-limiting members are raised above the light receiving and refracting portion.

Abstract: A low-profile pavement marker includes a base of an opaque, light-diffusing synthetic resin having at least one support wall positioned in use in the direction of an oncoming vehicle, and having a plurality of inwardly extending recesses defining adjacent pockets therein. A lens member of light-transmitting synthetic resin, rigidly secured to the base, has a peripheral edge portion intersected by a plurality of dividing portions for dividing the lens member into a plurality of areas respectively overlying and coextensive with the pockets formed in the support wall, the dividing portions and the edge portion being sealed to the support wall to provide a plurality of independent and hermetically sealed cells thereon. The lens member has a plurality of retrodirective cube-corner-type reflector elements extending beyond the dividing portions and the edge portion and into the cells and oriented to render the reflector structure highly visible at night.

Abstract: A reflective roadway delineator for reflecting incident light directed thereon by an oncoming vehicle back to the vehicle, the delineator being capable of being mounted upon either a roadway barrier having a planar longitudinally extending surfaces thereon or in the generally U-shaped trough of a longitudinally extending highway guard rail. The delineator comprises a base member having at least two different mounting surfaces thereon. One of the surfaces is engageable with and complementary to a planar surface of the associated barrier and the other of the surfaces is complementary to and engageable with at least one wall defining the recess of the trough in the associated guard rail. A reflex reflector is fixedly carried by the base member at predetermined angles relative to the mounting surfaces.

Abstract: There is disclosed a reflector structure that is highly visible both in daylight and at night, the structure including a body of transparent material having a front face and a rear face, the rear face including a continuous support surface having therein a plurality of recesses each defining a cell surrounded by a support wall, a plurality of retrodirective reflector elements disposed in the recesses for reflecting light falling upon the front face back toward the source thereof to render the reflector structure highly visible at night, and a backing member covering the rear face and hermetically sealed to the support surface thus hermetically to seal each of the cells to prevent entry of water, dirt and the like thereinto so as to preserve the reflecting properties of the reflector elements.

Abstract: 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 one end of the base member toward the other end thereof to corresponding coplanar top surfaces, the support member having a support surface lying below the plane for supporting thereon a cube corner reflex reflector assembly partially recessed below the plane. The keel members and the support member are respectively secured in complementary arcuate recesses with the plane substantially coplanar with the roadway surface, the recesses being cut in the pavement with circular blade cutting apparatus without moving the cutting apparatus along the pavement. A bidirectional marker is shown as well as cutting apparatus for cutting the three recesses therefor simultaneously.

Abstract: A thumb-sucking alarm system includes a pair of spaced-apart sensor electrodes carried on a moisture-accepting portion of a flexible sensor tape adapted to be wrapped around the user's thumb, the electrodes being respectively connected to conductive lead strips on an elongated coupling portion of the tape, the distal end of which is wrapped around a plug for insertion into a mating receptacle in a housing adapted to be secured by a strap around the user's wrist. The conductive strips contact terminals of a battery-powered transistorized alarm circuit in the housing which generates an audible alarm signal in response to establishment of an electrical path between the electrodes by the moisture in a user's mouth when he sucks his thumb. A test button is provided on the housing for testing the audible signal generating circuit.

Abstract: The present invention relates to a measuring device for measuring the relative-correctable difference in length of a person's legs in order to determine the amount of elevation required in the construction of an orthopedic shoe to compensate for such difference. The measuring device includes a base plate of predetermined thickness and a sole plate of predetermined thickness, the sole plate having a plan configuration similar to the base plate. Means are provided for preventing relative movement of the sole plate and the base plate, and means for securing the base plate and the sole plate to the foot of the associated person is provided whereby such person can stand and walk on the measuring device. Additional measuring plates of predetermined thickness are provided for increasing the elevation of the measuring device in predetermined increments whereby the correctable difference in elevation of the associated person's leg can be determined.

Abstract: 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 one end of the base member toward the other end thereof to corresponding coplanar top surfaces, the support member having a support surface lying below the plane for supporting thereon a cube corner reflex reflector assembly partially recessed below the plane. The keel members and the support member are respectively secured in complementary arcuate recesses with the plane substantially coplanar with the roadway surface, the recesses being cut in the pavement with circular blade cutting apparatus without moving the cutting apparatus along the pavement. A bidirectional marker is shown as well as cutting apparatus for cutting the three recesses therefor simultaneously.

Abstract: A box for artist brushes is integrally molded of plastic and includes two elongated panels hingedly interconnected for movement between open and closed conditions, each panel having one end wall, one side wall and one latch flange arranged complementary with those members on the other panel for cooperation therewith to form a closed container in the closed configuration of the panels, while facilitating insertion of brushes when opened. Each panel includes a transverse support bridge and two transverse rails longitudinally spaced apart adjacent to one end of the panel. Each bridge includes two inclined upwardly converging walls interconnected by a top wall which slopes downwardly from one side of the panel to the other, each inclined wall being provided with a row of holes therethrough decreasing in size from the high end to the low end of the bridge.

Abstract: An improved carrier case for roller skates, ice skates, boots and the like articles, having a first and second compartment for enclosure of the article. Each of the compartments is shaped substantially to the form of the article contained therein and flexible connection member connect the top portion of each of the compartments together. Article restraint devices are utilized within the interior of each of the compartments for restrainably maintaining the positions of the enveloped articles and for protecting the articles themselves. Receivable entry zippers are further associated with each of the compartments to provide for the user easy access into the interior of each of the compartments for inserting, storing, and removing the articles as desired.

Abstract: Test apparatus is disclosed for testing a gas-fired forced air heating system having a plurality of control elements. A monitoring device includes an indicator light adjacent to the thermostat for indicating a malfunction in the heating system, the monitoring device including condition-responsive switches for energizing the indicator in response to the absence of a stream of heated air when called for by the thermostat or in response to a malfunction in the thermostat. An analyzer comprises a plurality of indicator lights connectable through a selector switch to the power source and the heating system, the switch having an "OFF" condition for disconnecting the indicator lights, a "TEST" condition for checking the condition of the indicator lights and an "ON" condition for connecting the indicator lights respectively in parallel with corresponding heating system control elements to test the conditions thereof. Two embodiments of the analyzer are disclosed for use with different types of heating systems.

Abstract: A portable collapsible scaffold structure is adapted to be supported in use upon and transported by a truck or other self-powered ground vehicle, and includes a pair of extensible ladders adapted to be mounted in use adjacent to the vehicle and coupled thereto by extensible support means for raising and lowering the ladders simultaneously, the ladders supporting between their upper ends a work platform. Extensible support posts support the ladders intermediate the ends thereof and are coupled to extensible carriage means which support the lower ends of the ladders for movement along the ground or other support surface during raising and lowering of the ladders. The entire structure is hydraulically operated and control means coupled to the ladders and the platform maintain the platform substantially horizontal during raising and lowering of the ladders. The entire scaffold structure can be readily disassembled and stored on the associated vehicle for transportation thereby.

Abstract: A pin for use in making the reflector includes an elongated .[.snank.]. .Iadd.shank .Iaddend.of regular polygon outline and a cube-corner formation at one end. The cube axis of the cube-corner formation is at an angle other than zero degrees with respect to the pin axis. A group of such pins are assembled into a pin bundle for use in making a mold insert for the reflector.