Abstract: A key operated rotatable plug and cylinder define pin-receiving holes arranged in first, second and third rows that extend in first, second and third planes, respectively that radiate from a common center axis that extends substantially centrally through a plug-defined keyway. A key of generally rectangular cross-section is insertable into the keyway to bring recesses that are formed in its two relatively flat side surfaces and in one of its narrow edge surfaces into alignment with the pin-receiving holes so that inner ends of tumbler pins that are carried within the holes are received in the key-defined recesses to position the tumbler pins to permit plug rotation relative to the cylinder. The first plane extends from the center axis through the holes of the first row, and parallels the opposed, relatively flat side surfaces of a keyway-inserted key.

Abstract: An electrical receptacle includes a nonconductive contact carrier that mounts a set of female electrical contacts that are configured to receive and conductively engage plural conductive prongs of a male plug. The carrier has a generally cylindrical outer wall that is received within a generally cylindrical chamber that is defined by a nonconductive housing. The housing mounts the carrier for rotation about a center axis that extends centrally through the chamber. When the carrier is rotated about the center axis relative to the housing to an "on" position (that resides within a relatively wide angular range of "on" positions), housing-carried electrical contacts that extend through housing-defined passages engage carrier-carried electrical contacts that extend through carrier-defined passages. When the carrier is rotated about the center axis relative to the housing to an "off" position, electrical connection is interrupted between selected pairs of the housing-carried and carrier-carried contacts.

Abstract: An energy efficient wall panel for use together with other such panels to extend about selected peripheral portions of a thermal treatment chamber of a high temperature industrial furnace or the like includes a frame that supports an array of elongate cast refractory thermal insulating members 1) that extend side by side, 2) that have relatively wide flange portions that extend substantially contiguously to define a rigid, impact resistant inner surface that faces toward a thermal treatment chamber for absorbing, storing and re-radiating impingent heat energy back into the chamber, 3) that have relatively thin outer portions connected to the supporting frame, 4) that have central web portions that provide needed strength and rigidity while, at the same time, permitting only minimal conductive heat transfer therethrough, and 5) that have elongate, non-cast, fiber-type thermal insulating members compressively sandwiched between adjacent pairs of the cast refractory members for enhancing the panel's insulating c

Abstract: A golf ball position marker has a thin, circular body that is sufficiently transparent to permit viewing 1) of a body-defined, disc-shaped, oil-filled chamber, 2) of body-carried indicia located adjacent the chamber, and 3) of a steel ball that is movably housed within the chamber and that cooperates with the indicia to provide an indication of the slope and break of a portion of a golf green on which the marker is placed. The movable ball and the indicia cooperate 1) to indicate that a portion of a golf green on which the marker is positioned is "level" if the ball remains centered within the chamber, 2) to indicate the direction of slope of an inclined green by the direction in which gravity causes the ball to move from the center of the chamber when the marker is placed on an inclined green, and 3) to indicate steepness of slope of an inclined green by the speed with which the ball moves from the center to one side of the chamber when the marker is placed on an inclined green.

Abstract: A self-propelled core-cutting apparatus is used to cut circular slots in pavement extending about manhole castings and the like to permit castings and surrounding cores of pavement to be removed quickly and easily for such purposes as elevating the level of manhole castings to align with new pavement. The apparatus has a transport carriage to which are connected 1) a large diameter, generally cylindrical core-cutting bit, 2) power-operated support and drive systems mounting the bit for vertical and rotary movement relative to the carriage along and about a vertically extending center axis, and 3) a power-operated stabilization system that makes use of the weight of the apparatus in maintaining desired positioning of the apparatus during cutting operations.

Abstract: A handle operated, toggle type draw latch assembly is mountable on one of two members and is operable to selectively engage and disengage a latch-engageable formation connected to the other of the two members. The latch assembly includes a complexly configured operating handle that is pivotally connected near one end to a mounting base for movement relative to the base between closed and open positions, that provides a hand grip near its opposite end, and that, at locations between its opposite ends pivotally mounts a drawbar for movement between extended and retracted positions, and defines not only a pair of stops but also a catch-engageable formation. One stop engages the base when the handle is closed. The other stop engages the drawbar when the drawbar is retracted. When the handle is open, the drawbar can be pivoted into and out of extended positions for selectively embracing the latch-engageable formation.

Abstract: A slam-capable rotary latch employs a single rotary jaw that is releasably retained in its latched position by a rotary pawl, with the latch having a pair of spaced housing side plates that sandwich the rotary jaw and the rotary pawl, with the side plates defining aligned first and second U-shaped notches that cooperate with a third U-shaped notch formed in the rotary jaw for concurrently receiving and latchingly retaining within the confines of the first, second and third U-shaped notches a suitably configured strike formation, with housing side plate portions that define a selected one of the first and second U-shaped notches being rigidified and strengthened by the close proximity presence of a flange 1) that is formed integrally with side plate portions that define the selected notch and 2) that extends transversely to bridge between the housing side plates at a location near the first and second U-shaped notches.

Abstract: A portable appliance for heating towels and for dispensing heated fluid such as body oil has a suitcase-like housing with hinge-connected base and lid components that define a plurality of compartments for heating towels and liquid when the housing is "open" and the appliance is "set up" for operation, and for receiving components of the appliance so that the appliance can be conveniently stored and transported when the housing is "closed." When the housing is open, a support structure such as a set of legs is removable from the housing for use in supporting at least a base portion of the housing at an a convenient access height above a floor or other substantially horizontal surface. A relatively large main compartment is defined by the housing for receiving and suitably heating towels therein for use in concert with the administration of a massage. "Wet" or "dry" towel heating can be carried out within the main heating compartment.

Abstract: A splash guard for installation about a pair of substantially horizontally extending rails of a transfer bench for cooperating with a shower curtain to prevent water from splashing out of a shower stall or bath tub while the transfer bench is positioned to extend into and out of the stall or tub for supporting an invalid or disabled person. The splash guard includes at least one substantially flat member that is slotted to define one or more rail-receiving passages that permit the splash guard to be installed on and removed from the horizontally extending rails of the transfer bench. In preferred practice, the splash guard is defined by at least two substantially flat members that, when installed on the rails of a transfer bench, extend substantially vertically, side-by-side, with most of the open-slot area of one of the flat members being closed by non-slotted portions of one or more of the other flat members to prevent water from being splashed through the rail-receiving passages.

Abstract: An apparatus for dispensing, mixing and applying coating constituents to traffic surfaces has a carriage to which are connected 1) at least portions of a dispensing system that serves to dispense coating constituents from one or more reservoirs onto traffic surface portions that are to be coated, and 2) at least one rotatable set of mixing and applicator tools that extend in a radial array beneath the carriage. A wheel supported vehicle such as a truck or tractor is connectable to the carriage for guiding and moving the carriage across traffic surface areas that are to be coated. The vehicle also may be used 1) to support at least portions of the carriage, 2) to support at least portions of vehicle-connected components of the apparatus, and/or 3) to provide a source of power or to support at least portions of a source of power for operating vehicle-connected and/or carriage-connected components of the apparatus.

Abstract: An insulated door or wall panel assembly utilizes a compressively sandwiched array of bodies of insulation that extend side-by-side to define a substantially contiguous interior surface that can withstand direct exposure to high heat energy, for example by being positioned to extend about peripheral portions of a treatment chamber of a high temperature furnace to cooperate with adjacent furnace structure to minimize loss of heat energy from the treatment chamber. A rigid frame, typically formed from steel, overlies exterior portions of the sandwiched bodies of insulation and is securely connected thereto for positioning and supporting the array, whereby a rugged panel assembly is provided that is well suited for use as a closure to selectively permit access through a furnace wall opening to the treatment chamber.