Abstract: An improved bedspread comprising a plurality of panels which are each reversible and interchangeable to provide a wide variety of different visual effects.

Abstract: An improved dental flossing tool having a clamp (clamping means) located adjacent the tip where the flossing material exits the tool serving to clamp the flossing material to prevent entry of moisture through the tip, together with a water-impervious seal (means) for manually controlling withdrawal of the flossing material from the storage area within the dental flossing tool.

Abstract: Disclosed is a hypodermic syringe with several embodiments teaching the safe disposal of the cannula and hub of the syringe into a container such as a SHARPS CONTAINER without the need of replacing the needle cover thus eliminating the very real danger of an accidental stick of a finger or hand of the technician with a contaminated needle. The preferred embodiment allows the plunger to stop at a first resistance and when the needle is removed from the subject and placed over the disposal container, continued forward motion forces the hub and needle to separate from the barrel thus involving the use of only one hand and eliminating the need to bring the others hand anywhere near the contaminated needle.

Abstract: A disc sander, grinder, or combination machine, hand-held, having an umbrella-shaped hood enclosing the full perimeter of the disc and urged downward to contact the workpiece so air and debris particles may be drawn by a suction blower through an annulus surrounding the disc and discharged into a porous bag for collecting of debris.Making the porous bag of wire mesh for strength and heat resistance, and making the grinding disc working surface a flat cone to help ensure better collection of debris particles are additional features.

Abstract: An improved dental implant prosthesis attachment comprising an attachment having hollow receptacles embedded within the prosthesis and formed with openings for receiving the heads of the mounting posts, and slide members which are removably insertable into the receptacles, by the wearer, to fixedly retain the heads of the posts within the receptacles and which are removable by the wearer to permit cleaning of the prosthesis and subjacent gum area.

Abstract: An electrically-controlled actuating mechanism comprises a length of shape memory wire. A source of electrical current passes electricity through the shape memory wire and a voltage regulator controls the voltage applied to the wire. The actuating mechanism is particularly advantageous as an actuator for a model railway track switch.

Abstract: An improved method and apparatus for welding heavy gages of high strength steels and alloys relatively quickly and inexpensively, while producing joints which are extremely strong and durable and have high fracture toughness.

Abstract: A remote cannula removal cartridge syringe comprising a first barrel, a second barrel, an expandable needle hub, and a modified needle hub receiver. The second barrel is concentric with the first barrel and has a retaining pin which slides within a series of grooves of the first barrel. After use of the syringe the second barrel may be protracted causing the engagement and safe separation of the needle hub from the syringe without requiring the operator to recap the syringe or place fingers near the contaminated needle.

Abstract: An improved procedure and apparatus for mounting and replacing fire hydrants including a hollow, box-like structure comprising a plastic cylinder which can enclose the hydrant-mounting flange to protect the flange, yet which can quickly and easily be removed and replaced, even by unskilled workmen, to provide access to the hydrant-mounting flange and the break-away bolts without requiring expensive and time-consuming cement work.

Abstract: An improved flashlight hat attachment device comprising attachment means engagable with the edge of a hat to attach the device to the hat and having a first support member engagable with the users head to firmly position said device and a flashlight support member projecting outwardly from said first support member and carrying a plurality of flashlight gripping fingers curved to releasably retain a flashlight between said fingers to support said flashlight in a desired position.

Abstract: An improved cart for carrying articles comprising a rigid frame having a collapsible handle, a rear support portion and an axle with removable wheels and storage member for attaching the wheels to the frame in a manner to minimize the storage area required, together with a fabric article carrier having a opening at its upper end which is reinforced to normally urge the opening to an open position and a rigid member which is hinged to the frame and which is extendable to support the lower portion of the article carrier and which can be folded against the frame to facilitate storage of the cart.

Abstract: An improved windsurfing spreader having at least one pulley mounted thereon to rotatably engage the harness line and mounted in a manner to facilitate disengagement of the harness line from the pulley, when desired, and which is very light in weight and which is strong enough and rigid enough to withstand the stresses of windsurfing, yet which is sufficiently flexible to provide a shock-absorbing function to prevent injury to the surfer.

Abstract: An improved firehose storage and transportation device comprising a carrying case having front and rear compartments wherein a firehose is stored in a serpentine manner and formed with a releasably secured flap to give the user the option of discharging the hose as a single unit or of allowing the hose to be paid out gradually.

Abstract: An improved security system comprising a relay selectably operable to pass electrical power to a protected device, a code plug having a preset combination of possible electrical connections controlling passage of electrical current to actuate said relay, a key carried by an authorized person insertable into said code plug to complete preset combination of connections, and a switch box connected in series between said code plug and said relay having a plurality of multiposition switches each having a plurality of contacts selectably connectable by a person seeking to limit access to said protected device in a manner to define a desired combination to which said switches must be set in order to allow said switch box to pass said current to said relay.

Abstract: An improved parking guide comprising a free-standing, portable base having a support member projecting vertically upward from the base and carrying a position display board mounted adjacent the upper end of the support member, a pointer rotatably mounted on a pulley mounted on the support member adjacent the position display board and having an indicator arm moveable across at least a portion of the position display board, a spacer arm mounted on the support member adjacent the position display board and projecting frowardly from the support member, and an actuating cord secured to the base and extending upward to the outer end of the spacer arm and then inward and about the pulley in driving relation with the pulley.

Abstract: An improved hand tool for cutting flex-duct material comprising a plier-type wire cutter having retaining member mounted on the outside of the jaws of the wire cutter for releasably retaining a disposable razor-type blade.

Abstract: An improved dental flossing tool comprising a single flossing rod or tool is provided, containing a supply of dental floss therein and from which a strand of floss extends, and two hands are used, one to grip the flossing rod or tool, and the other to hold the free end of the floss strand at the proper angle and with the proper tension, with the second hand holding the free end of the floss strand. The floss tool of the present invention is preferably hollow, with a supply of dental floss mounted therein, and has a hollow, narrow tip through which the floss strand is routed internally to project from the end of the tip for use. A locking device is provided for selectively blocking the feeding of the floss strand in lengths which may be varied as desired and a restricting device is provided for restricting movement of the floss strand and for preventing moisture from entering the interior of the tool.

Abstract: A drug search tool which is designed to be passed through the crevices between furniture or vehicle seat cushions with ease, without the necessity of the police officer inserting his hand into such crevices, and which is formed with a recess that will serve to remove any articles located within such crevices, including hypodermic needles, without exposing the police officer to the risk of being stuck by such needles.

Abstract: An improved keyboard for office machines and the like having a reversely-sloped keyboard having a wrist support member located on the raised adjacent edge of the keyboard and having the keys arranged in tiers descending in stepwise fashion toward the lower rear edge of the keyboard.

Abstract: An improved pipe coupling device comprising a cylindrical outer layer of plastic, such as polyvinyl chloride formed with a central inwardly-extending boss which coaxially supports a copper pipe extending therethrough and having recesses encircling said copper pipe adajcent each end of said outer layer to permit pipe to be coupled to be inserted into said recesses in a manner to encircle said copper pipe and to facilitate joining of the pipe to be coupled to said outer layer.