"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 3999220 | Air-cushioned protective gear Helmets, shoulder pads, thigh pads and other protective equipment employ a cushioning fluid such as a layer of compressed air to protect both the wearer and an opposing player in contact sports. The helmet or other device has outer and inner walls of resi... | 12/28/1976 |
| 3999221 | Disposable bib A disposable bib of one piece construction having a pair of elongated tie strips formed from the material to be removed to create a neck opening. The neck opening has an arcuate generally circular bottom portion and each of the tie strips, which are of a ... | 12/28/1976 |
| 3999222 | Necktie knot simulator A knot simulator for a four-in-hand necktie includes a panel generally shaped, contoured and dimensioned to correspond to the front and side surfaces of a four-in-hand necktie knot and clamp means on the rear of the panel for engaging the free ends of the... | 12/28/1976 |
| 3999223 | Flush valve with selected volume control A dual capacity flush valve has a handle or actuator which is normally operated to provide a low volume flush; a selector member is positioned adjacent the handle and when operated enables the handle to be operated to provide a full capacity flush. The ha... | 12/28/1976 |
| 3999224 | Sharp-edged surface contours for rendering water bearing surfaces wet-slip resistant The surface of a bathing fixture or a water sports device can be made wet-slip resistant by providing on the surface spaced, raised, flat topped, sharp-edged contour elements of polymeric material. These are normally uncomfortable to stand or sit on by re... | 12/28/1976 |
| 3999225 | Ventilated toilets Improvements in ventilated toilets; means of and methods for exhausting fouled air from the interior zone of a toilet bowl in an enclosed bathroom zone and further removing said exhausted air from the latter; means for disinfecting and deodorizing the air... | 12/28/1976 |
| 3999226 | Toilet sanitizer with disposable container The disclosure relates to a sanitizer/deodorant for a toilet bowl wherein the sanitizer/deodorant is placed into the toilet bowl rather than the flush tank after the toilet has been flushed to maintain a high concentration of the sanitizer/deodorant in th... | 12/28/1976 |
| 3999227 | Apparatus for transporting disabled persons An apparatus for transporting disabled persons comprises a travelling chassis provided with a lifting gear and at least one carrier unit mounted on the lifting gear. Each carrier unit includes two carrier members which extend in parallel spaced relation t... | 12/28/1976 |
| 3999228 | Invalid lifting and walking device A power operated invalid lifting and walking device which is operated by the invalid. The invalid lifts himself to a standing position with a power hoist attached to the device. While supported in the standing position by the hoist, the invalid can propel... | 12/28/1976 |
| 3999229 | Double joint assembly A double joint assembly for interconnecting three elements of a foldable structure, two elements being capable of pivoting in the same plane so as to be located at a pre-selected angle to the third element, the joint assembly comprising a forked member, a... | 12/28/1976 |
| 3999230 | Apparatus for the continuous manufacture of phenolic resin foam in endless sheets An apparatus for the continuous manufacture of phenolic resin foam in an endless sheet which includes means for mixing expandable liquid phenolic resin with a blowing agent and an acid-containing curing agent, optionally with the addition of additives, an... | 12/28/1976 |
| 3999231 | Collapsible, adjustable bed frame with adapted box springs A collapsible, adjustable bed frame supporting an adapted box springs.... | 12/28/1976 |
| 3999232 | Dietary control grease mop The present disclosure is directed to a dietary control grease mop for removing cooking grease and oils from food during cooking which employs a group of thin gauge narrow strips of polypropylene grasped at their mid-point by a wire loop the remainder of ... | 12/28/1976 |
| 3999233 | Dust ruffle A dust ruffle is adapted to be positioned between the upper mattress and the lower box spring mattress of a bed, and covers only a portion of the upper plan platform of the lower mattress. Secured to the elastic partial platform portion is a continuous si... | 12/28/1976 |
| 3999234 | Body support A bed for supporting a user's body in a level condition thereon to minimize bodily irritations includes a base with a mattress cover over a plurality of movable body support elements carried by the base. The body support elements are vertically disposed a... | 12/28/1976 |
| 3999235 | Pressure equalizer for waterbed The waterbed comprises a body supporting liquid filled bag or bladder and a freely expansible ballast chamber in unrestricted fluid communication with the body supporting bag or bladder. The fluid interchange operates to regulate and maintain at a comfort... | 12/28/1976 |
| 3999236 | Waterbed frame Side and end boards are assembled to define a rectangular frame for a waterbed. External vertical grooves are formed on the exterior portions of the boards adjacent each of the corners. A metal bracing member comprised of two panels at a right angle to ea... | 12/28/1976 |
| 3999237 | Bee hive The hive comprises a central tower of any height or capacity on which are mounted as many supers or brood boxes as needed. The supers or boxes are so mounted on the tower that each one is removable separately without the need to shift or disturb adjacent ... | 12/28/1976 |
| 3999238 | Pan cleaning apparatus A pan cleaning apparatus for use with bun and roll pans in bakeries which will provide a brushing and scrubbing action for loosening seeds, crumbs or the like as well as other foreign material which may be lodged in the pan after use. The device includes ... | 12/28/1976 |
| 3999239 | Device for cleaning printing rollers A device for cleaning printing rollers. This device is capable of effectively cleaning rollers through a brushing process and a washing-drying process, the former process being conducted in a liquid-cleanser-contained tub wherein a sandpaper-brush or a wi... | 12/28/1976 |
| 3999240 | Cable cleaning device A cable cleaning device equipped with a housing means having a through hole for a cable. The housing means is divisible in the direction of the diameter of the cable and accomodates therein a cleaning means of an elastomeric material composed of at least ... | 12/28/1976 |
| 3999241 | Vehicle rear windshield wiper device A wiper blade is pivotally coupled to a rotatably mounted main gear via a wiper arm and abuts the rear window of a vehicle. First and second gear rods are provided in spaced parallel coplanar flanking relation with the main gear. First and second worm gea... | 12/28/1976 |
| 3999242 | Cleaning apparatus An apparatus for cleaning windows and the like characterized by a housing containing a nozzle for injecting a cleaning solution and a brush being movable under contacting relation with the surface to be cleaned, wherein the end of the housing facing the s... | 12/28/1976 |
| 3999243 | Leaf and debris blower for golf greens A blower to clear obstructions such as leaves from a golf green in preparation to "putting" the ball, comprising a head having a slit to be positioned in proximity to the surface of the green. A tubular shaft extends upwardly from the head and terminates ... | 12/28/1976 |
| 3999244 | Shag rug rake A rake for raising and combing the pile of a rug, carpet or the like having a head and an elongated handle attached thereto. The head has a plurality of prongs arranged along an edge opposite said handle in at least two spaced, parallel rows with the indi... | 12/28/1976 |
| 3999245 | Counterbalance hinge for pivoting loads An improved counterbalance hinge assembly has a bias spring and uniquely shaped cam for counterbalancing inherently nonlinear forces represented by pivoting loads such as fold up wall type beds, desks, and the like. A cable attached to the spring wraps pr... | 12/28/1976 |
| 3999246 | Two knuckle hinges An improved two knuckle hinge comprises a pair of adjacent hinge leaves on which long and short axially aligned hinge knuckles are formed. The long hinge knuckle houses a bushing in its end adjacent the short hinge knuckle to act as an anti-friction beari... | 12/28/1976 |
| 3999247 | Vehicle seat fitting A fitting for a vehicle seat having a tiltable backrest member includes one hinge member that is connectable to the backrest member and another hinge member that is connectable to the backrest member. A pivot arrangement connects the hinge members for rel... | 12/28/1976 |
| 3999248 | Apparatus and method for knitting proteinaceous fragments into a unified mass An apparatus and method for knitting proteinaceous fragments into a unified mass is disclosed. The apparatus is adapted to accumulate proteinaceous fragments into a wad, and then knit the fragments together to form a unified proteinaceous patty. The metho... | 12/28/1976 |
| 3999249 | Driving method and apparatus for a tandem carding machine A method for driving a Tandem carding machine provided with a fiber tufts supply means, a first and second carding machine, a first web transfer means disposed between the first and second carding machine, a second web transfer means for transferring a co... | 12/28/1976 |
| 3999250 | Method of fiber distribution and ribbon forming By combination and interaction of mechanical and aerodynamic forces, textile fibers are doffed from a processing cylinder, purged of foreign matter, subdivided and directed into a network of conveying tubes, and distributed to a multiplicity of fiber by-p... | 12/28/1976 |
| 3999251 | Buckle and clip apparatus An apparatus for attachment to a belt to serve as a conventional belt buckle, having the additional feature of a split construction wherein the two buckle halves are held together along an edge by a spring hinge so that the buckle may additionally serve a... | 12/28/1976 |
| 3999252 | Clamping device for holding drawings This device consists primarily of a sleeve having C clamp means for securing it to a swivel type bench lamp. The device includes oppositely opposed and adjustable rod means carried within the sleeve, the rods having spring clamps attached thereto for hold... | 12/28/1976 |
| 3999253 | Cable grip A cable grip including an equalizer of plural coil construction with the coils each closely wound and spaced apart longitudinally, and receiving strand pairs of the grip. The equalizer is formed from circular section wire, and adjacent coils are spaced ap... | 12/28/1976 |
| 3999254 | Two-piece locking buckle A releasable locking type buckle is made of two pieces of essentially flat material, the pieces forming two members which cooperate with preferably webbed type belts to form a securing assembly usable as a cargo securing device. One of the locking members... | 12/28/1976 |
| 3999255 | Manufacture of sliding clasp fasteners There is disclosed a method of producing sealed end stringers for sliding clasp fasteners from a pair of stringer tapes, each of which is provided on one of its edges with a row of fastening elements. The tapes are first arranged so that the two rows of f... | 12/28/1976 |
| 3999256 | Fastening device A fastening device used in shoe and related closures has a V-shaped resilient wire attached to the opened closure flaps which may be drawn together by sliding a second wire member which is wrapped about it along the diverging portions. The two wire member... | 12/28/1976 |
| 3999257 | Socket member for snap fastener Socket member comprising a main body having a cavity portion formed in the center of its top wall for receiving the head of a stud member and bores for fastening the socket member formed around the cavity portion. The outer edge defining each of the bores... | 12/28/1976 |
| 3999258 | Fastener for plastic film sheeting and the like An extruded plastic channel receives the plastic film and a plastic locking strip is then engaged within the channel and under opposed overhanging beads on each side of the channel to clamp the film in position. One of the beads on the channel extends inw... | 12/28/1976 |
| 3999259 | Clamp A clamp having two cooperating elements, one element carrying a pair of opposed stub shafts and the other element having a pair of channeled bearings receiving the shafts. A coiled tension spring engages a first stud mounted on the stub shaft carrying ele... | 12/28/1976 |