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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 4118055 | Turning mechanism This invention relates to a door lock, and particularly to the turning mechanism which activates movement of the latch bolt mechanism of the door lock.... | 10/03/1978 |
| 4103401 | Sheet gripping assembly A sheet gripping assembly for thin pliable sheet material, such as plastic film, having a laterally opening channel-like base member and a pair of sheet gripping members insertable into the base member channel through its open side to grip sheet material ... | 08/01/1978 |
| 4087995 | Combination lock A combination lock intended to equip a door of a safe, chest or strong room is disclosed in which both the setting up of the opening combination and the control of said opening are obtained using a single operating member. It comprises: (i) a multiplicity of w... | 05/09/1978 |
| 4083086 | Tightening device for attaching a hose clamp Apparatus for clamping the hose of a nipple including a clamp of the type having a band with interengageable barb means and apertures spaced from one another for accommodating maintenance of the band in a clamping position around a hose. A tightening devi... | 04/11/1978 |
| 4083087 | Flexible pipe clamp assembly A clamp assembly for securing a band about a flexible pipe includes a plurality of substantially U-shaped members clamping the ends of the band together as they are wrapped about pin members having axial undercuts therein. The pins are so disposed that th... | 04/11/1978 |
| 4082333 | Combination of interlocking security on chain door A chain door guard assembly has a chain fixed at one end with chain heads along its length and a guard plate having a raised main body section and flanges for attaching the guard plate to a door. The main body section of the guard plate contains a long sl... | 04/04/1978 |
| 4080691 | Molded element tape support for invisible slide fastener and method of manufacture Each stringer of a slide fastener includes a plurality of spaced coupling elements, molded on continuous connecting threads, with wing portions extending into the spaces between the legs of coupling elements on the upper side thereof. The stringer tape we... | 03/28/1978 |
| 4081191 | Truck door lock A lock assembly for locking or unlocking the door of a truck or trailer body from a handle located inside the cab of the tractor. The tractor cab is fitted with a pivotable handle lever mounted on about fixed rachet gear engaged by a pivotable tooth on th... | 03/28/1978 |
| 4078843 | Handle construction A door and handle latch for apparatus enclosures includes a recessed handle latch on the door which serves to immovably secure the door to the enclosure structure by engaging a portion of the enclosure when the handle latch is in the closed position. A bo... | 03/14/1978 |
| 4075741 | Automatically disengagable safety buckle An automatically disengagable safety buckle utilizes a C-shaped rod-like element secured to one end of a flexible safety strap. A plate having a hook-like end is secured to one end of another flexible safety strap. The C-shaped rod is introduced between a... | 02/28/1978 |
| 4074398 | Slide fastener tape A stringer tape for slide fastener has a warp-knit structure including longitudinally extending alternate wales and interwale grooves. Those wales lying adjacent and behind respective edge portions of the tape are formed with fewer knitting threads than a... | 02/21/1978 |
| 4074916 | Flag seal including flattened side-wall and oval cable A locking mechanism utilizing a cable in which the cable has been flattened so as to give it an oval or flattened shape and wherein an orifice into which the cable is inserted for one way motion is flattened so as to prevent the cable from being twisted o... | 02/21/1978 |
| 4074396 | Clasp with enclosed pin An improved clasp for holding fabric between its legs employing an axially movable pin within the clasp for penetrating the fabric when moved to engage a catch which conceals the end of the pin within the clasp.... | 02/21/1978 |
| 4073519 | Noiseless latch for particular use on vehicle doors In a door latch system having a metal latching member engageable with a metal striker, a noise suppressor of resilient material is dovetail jointed to the latching member, in such a position thereon that the striker makes noiseless contact therewith upon ... | 02/14/1978 |
| 4073042 | Safety hook A safety hook for use with a sling wherein the hook is equipped with a simple, yet sturdy pivotal latch for locking a load in position.... | 02/14/1978 |
| 4073170 | Remotely actuated lock arrangement for motor vehicle A motor vehicle has a luggage compartment with a lid secured closed by a lock operable both by a key, and by a knob disposed in the passenger compartment.... | 02/14/1978 |
| 4072333 | Removable door-locking device A removable, portable door-locking device engages a recess in the door frame conventionally provided to receive a latch built into the door. A hook that engages this recess extends into the room from between the door and door frame and coacts with wedges ... | 02/07/1978 |
| 4069560 | Measuring apparatus Apparatus for use with graphic material supported on a planar surface. Two identical clamps, upon which a reeling means is mounted, are connected by a tape and mounted on the edge of the planar surface. The clamps are U-shaped and have a longitudinal slit... | 01/24/1978 |
| 4068334 | Inflatable body support apparatus A body support apparatus is disclosed as having alternatingly inflatable and deflatable cells and uninflated resilient body support material positioned between the cells. The cells are inflated by pressurized fluid such as air under the control of a contr... | 01/17/1978 |
| 4067075 | Inflatable stretcher The inflatable stretcher comprises a top structure having a plurality of herringbone pattern inflatable compartments, a bottom pad having a layer construction including reinforcing cords, a plurality of handles which project from the terminal side of the ... | 01/10/1978 |
| 4065819 | Flotation support system A flotation support system including a generally rectangular air frame, which is defined by a tubular air-filled member which surrounds an open region. A base sheet extends beneath the open region and is secured to the tubular member to define with such m... | 01/03/1978 |
| 4064714 | Lock bar assembly There is disclosed a locking bar assembly adapted for attachment to a variety of articles in order to effect the interlocking of the articles, formed by a tube having opposed ends and being hollow throughout the interior portion thereof, the tube provided... | 12/27/1977 |
| 4064650 | Door latch A door latch arrangement is disclosed to prevent a door from popping open when the door is subjected to pressure from the inside. Means are provided to restrain movement of the door latch until the door and latch have moved partially open, thereafter the ... | 12/27/1977 |
| 4064579 | Waterbed mattress with inflatable margins A waterbed mattress adapted to fit within a rigid frame comprises a water-containing main chamber and at least one supplemental chamber along the perimeter of the main chamber for containing a fluid giving structural rigidity to the perimeter, particularl... | 12/27/1977 |
| 4062092 | Safety hook A safety hook is provided with a spring loaded closure segment normally closing the mouth of the hook. A pin carried by the segment is normally engaged by a spring loaded crank latch. The crank latch prevents the pin and segment from rotating to open the ... | 12/13/1977 |
| 4061372 | Secondary lock for sliding door or window A sliding vent, such as a door or window, is slidable in a plane parallel to a fixed vent having a bottom rail of channel construction including a vertical panel adjacent the path of the sliding vent. A rectangular opening is cut through the panel into wh... | 12/06/1977 |
| 4061373 | Door latch device A door latch device for securing a door in place closing an opening into an enclosure including an elongated resilient retainer strap having an elongated aperture formed in one end and attachable at its other end to the door, a threaded screw-type fastene... | 12/06/1977 |
| 4059299 | Auxiliary portable lock An auxiliary portable lock which comprises a housing, a lock body receivable within said housing, and adapted for axial rotation therein, said housing being internally communicative with a tubular casing axially normal to the longitudinal axis of said hou... | 11/22/1977 |
| 4058331 | Remotely actuated two stage structural latch A two stage remotely actuated structural latch especially suitable for supporting an aircraft canopy during flight as well as on the ground. One single part of the latch carries all of the load and the latch can be locked or unlocked from a remote locatio... | 11/15/1977 |
| 4058334 | Self-locking devices An improved self-locking device for locking a movable structural member to a stationary structural member, or to another movable structural member, or for unlocking the same, comprising a rotatable self-locking cam and an actuating means therefor; the rot... | 11/15/1977 |
| 4057861 | Mattress This invention relates to a mattress to which conditioned air can be supplied to issue from the mattress to impinge upon and pass around the body of a person so as to wholly or partly enclose the person in a microclimate to promote healing or maintain the... | 11/15/1977 |
| 4057862 | Water bed A water bed includes a water-filled bladder resting upon a base having a semi-flexible outer framework providing lateral support for the periphery of the bladder. The outer framework is divided into a lower wedge-shaped portion affixed to the base, and a ... | 11/15/1977 |
| 4057983 | Lock for skis A lock for skis having a pair of clamp elements each provided with a recess disposed for receiving a ski. The elements are connected together by a hinge so that the elements can pivot relative to one another to and from a position clampingly engaging a pa... | 11/15/1977 |
| 4057879 | Headers with insertable latch members A header is provided for mounting on a circuit board comprising a block having a plurality of circuit board pins mounted therein and a generally rectangular unitary housing. The unitary housing and block have a face for mounting on a surface of a circuit ... | 11/15/1977 |
| 4057984 | Ski lock device with single actuating means A locking device for a pair of skis is actuable with one hand and includes a first and second attachment mountable on respective skis. A key operated first attachment includes an actuating means having an end which is positionable flush with the underside... | 11/15/1977 |
| 4057272 | Arm top cover for locking devices A locking device for a top cover on a bracket arm of a sewing machine which employs a latching device of which the retractable bolt is associated with a thread guiding member shiftably supported on the bracket arm and projecting exteriorly thereof. When t... | 11/08/1977 |
| 4057095 | Flexible sheet fixing device A device for fastening sheet material, such as plastic sheeting, to a framework, such as a greenhouse construction, composes longitudinally extending channel members firmly attached to the framework at selected parallel locations, the channel members havi... | 11/08/1977 |
| 4057020 | Cam operated hatch cover holddown A hatch latch mechanism for a railway hopper car having a longitudinally extending handle pivotally and slidingly linked to a hopper car roof which can be upwardly and rearwardly rotated to extend entrappingly across an outboard projection of a hatch cove... | 11/08/1977 |
| 4055360 | Security lock A security lock comprising a tube having inner and outer ends and a passage extending between such ends, and a shaft including first and second shaft sections interconnected for pivotal movement relative to each other. The shaft has inner and outer end po... | 10/25/1977 |
| 4054309 | Closure latch A closure latch includes a latch frame pivotally mounting a latch bolt and a cam member. A common torsion spring interconnects the bolt and cam member for biasing the bolt to unlatched position and biasing the cam member oppositely of the bolt. The cam me... | 10/18/1977 |
