Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 3945041 | Protective device for a person's rib cage area This invention relates to a device to be worn around a person's midsection for protecting areas of the rib cage, solar plexus and adjacent areas. The device is useful particularly when one engages in various contact sports such as karate, boxing and the l... | 03/23/1976 |
| 3945042 | Protective garment for skaters, and the like A lightweight protective garment is provided for skaters, skiers, and the like, to reduce the injury from a fall. The garment is worn over the torso primarily to cover the area of the lower back, upper back and arms. The fabric of the garment by itself ha... | 03/23/1976 |
| 3945043 | Flip-up visor assembly for helmet A flip-up visor assembly for a protective sport helmet or the like, in which a band secured at spaced points along the length and intermediate the ends thereof across the brow portion of a helmet with resilient pads disposed between the free band ends and... | 03/23/1976 |
| 3945044 | Goggle and accessories therefor A goggle frame includes air vents spaced along its periphery and covered with a fibrous lining to vent the goggle interior while preventing entry of foreign matter. A detachable partial-face shield has snap-in posts which mate with apertures spaced along ... | 03/23/1976 |
| 3945045 | Protective glove for the hand A unitary flexible protective glove molded of a resilient material and adapted to be easily worn on the hand for use in the art of karate and the like. The basic embodiment of the glove, when worn, covers mainly the back and sides of the hand, the thumb a... | 03/23/1976 |
| 3945046 | Flexible knee support A knee support or wrap especially designed for athletes stabilizes the knee ligaments and provides continuous support for the knee regardless of the position of the leg. A tubular, elastic sheath is slipped over the knee, and a pair of elastic straps anch... | 03/23/1976 |
| 3945047 | Knee protector A knee protector for athletes features a resilient body portion having interconnected internal fluid-filled chambers for absorbing straight on or lateral impact forces on the knee joint and for distributing these forces in a most advantageous manner. An i... | 03/23/1976 |
| 3945048 | Disposable bib and method for making the same A one piece bib having slits for providing a head opening and having a pocket for catching spilled food and the like is made from a single sheet. The lower longitudinal edges of a generally oblong sheet are cut away on the bias; the sheet is folded on the... | 03/23/1976 |
| 3945049 | Protective gloves A process for the manufacture of gloves comprising: pre-coating a light-weight textile fabric substrate on one side only when a foamed dispersion consisting of a synthetic rubber and polyvinyl chloride; curing the dispersion; superposing two plies of the ... | 03/23/1976 |
| 3945050 | Visored cap A visored cap having an adjustable metal strap in its head band. The body portion of the cap comprises spoked pieces connected together at one end and to the head band at the other end. The visor and body portions are each connected to the head band by me... | 03/23/1976 |
| 3945051 | Short pants with panel overlap Short pants in which the left and right seat panels are independent of the left and right front panels. The left and right seat panels are attached to the waist band at their upper edges and extend over substantially greater than one-half the waistband. T... | 03/23/1976 |
| 3945052 | Synthetic vascular graft and method for manufacturing the same A synthetic vascular graft composed of fine denier polyester fiber forming a warp-knitted tube. The vascular graft has a porosity sufficient for optimum tissue ingrowth characteristics while at the same time retaining sufficient control of porosity to pre... | 03/23/1976 |
| 3945053 | Rolling contact prosthetic knee joint An apparatus is disclosed for the rolling contact joint that is particularly useful as a prosthetic joint such as a knee joint. The basic joint may take a variety of forms depending upon the particular situation, but in essence, includes at least two bodi... | 03/23/1976 |
| 3945054 | Through corneal prosthesis and method of installing same A through corneal prosthesis is proposed which comprises a bearing member to be introduced between the corneal layers and a bushing with a threaded hole rigidly mounted on the bearing member, the threaded hole threadedly receiving a removable optical cyli... | 03/23/1976 |
| 3945055 | Toilet flushing reservoir system A toilet flushing reservoir system is provided which includes a reservoir comprising upper and lower headers and individual longitudinally extending pipes between the headers: one of the pipes has a flow restrictor therein. The top header is provided with... | 03/23/1976 |
| 3945056 | Dual flush toilets This invention provides a modification kit by means of which a conventional toilet of the flush tank type may be converted into a dual flush system. The mechanism is mounted and secured inside a flush tank on the front wall of the tank and is operationall... | 03/23/1976 |
| 3945057 | Control for water closets A control for a water closet, enabling the valve actuating float to be adjusted from outside of the tank to enable a relatively small volume of water to be normally introduced to the tank for flushing purposes. By actuation of a simple control, the float ... | 03/23/1976 |
| 3945058 | Collapsible sauna bath kit A kit collapsible readily to be confined neatly in a foldable two-part travelling case embodied with the kit and to provide, when extended, a sauna bath apparatus embracing a water-tight, water-collecting base receptacle, a porous, plastic web covered cot... | 03/23/1976 |
| 3945059 | Swimming pool water heating system A solar water heating device and construction for heating the water in a swimming pool from the heat derived from the rays of the Sun. The pool is constructed with a border platform or coping around its edges with a hollow passageway under the metal top s... | 03/23/1976 |
| 3945060 | Liquid dispensing bottle-hanger construction A liquid dispensing bottle has a mounting clip for hanging the bottle in an inverted position within a flush tank of a toilet for automatically dispensing a predetermined amount of liquid during each flushing operation. A circular boss is formed on the bo... | 03/23/1976 |
| 3945061 | Swimming pool inlet fitting assembly For use with a drain gutter and water supply assembly of the type which is adapted to be positioned along the periphery of a swimming pool, with an inner gutter wall over which contaminated water is allowed to spill continuously into the gutter from the s... | 03/23/1976 |
| 3945062 | Toilet chemical dispenser A container of the chemical to be dispensed is supported in inverted position in the toilet flush tank with the mouth of the container opening downwardly. The dispensing closure is sealingly associated with and axially adjustable on the container around i... | 03/23/1976 |
| 3945063 | Bed and stretcher for an invalid A bed and a stretcher for permitting transferring of a patient from a stretcher over to a bed, or visa versa. The bed has a plurality of supporting ledges arranged in parallel with a uniform spacing and set in place on the main bed frame in a horizontal m... | 03/23/1976 |
| 3945064 | Adjustable bed frame construction An improved adjustable cross frame member for use in a bed frame having side frame members and another such adjustable cross frame member. Each cross frame member comprises a pair of elongate elements including first and second perpendicular legs. One of ... | 03/23/1976 |
| 3945065 | Lumbering tool The present invention provides a strong, but lightweight, multi-function, portable lumbering tool which can be easily carried by an individual lumberjack operating alone in the forest. The tool combines a number of functions which permit an individual lum... | 03/23/1976 |
| 3945066 | Single-point mooring systems A mooring buoy for tanker ships is provided with vertical flow channels through which fluids may be passed from an undersea pipeline to a buoy-to-ship hose. Inlets to the flow channels are provided at their lower ends and outlets at their upper ends. To e... | 03/23/1976 |
| 3945067 | Quick-release storage of a life ring and lifebuoy markers A quick-release device for storing a ring buoy and lifebuoy markers. The ring buoy rests against the end wall of a frame and is normally held there by a swingable pivoted ramp with its center of gravity well beyond the pivot. When stowed, the ramp snugly ... | 03/23/1976 |
| 3945068 | Swimmer's aid The swimmer's aid is a generally S-shaped board having means on the upper surface thereof for engagement with the hands of a swimmer. The swimmer holds the board in front of him with his arms extended and propels himself by means of kicking his legs. The ... | 03/23/1976 |
| 3945069 | Threading taps A threading tap, having the usual longitudinally extending flutes to provide lands therebetween. Each land is provided with screw-cutting teeth, and each land has at least one cross-groove formed therein of a length equal to at least two teeth and of a de... | 03/23/1976 |
| 3945070 | Wire thread cast insert A threaded opening is formed in a plastic or metallic body formed by molding or casting by providing a wire in a helical configuration supported on a core member and then molding or casting the material about the helical configuration. This helical config... | 03/23/1976 |
| 3945071 | Apparatus for cold forming recesses in the heads of screw fasteners A recess is formed in a screw head by a cold forming technique employing a two piece punch which includes an outer member having an axial bore formed therethrough which receives and carries an inner, concentric punch pin for movement within the bore. The ... | 03/23/1976 |
| 3945072 | Apparatus for the control of die heads of presses with movable dies Apparatus is disclosed for controlling die heads of screw-making presses having movable dies comprising a die head rotatably mounted on a shaft and having two dies, and a pivotally mounted controlling fork with a cam surface engaging the die head by rolle... | 03/23/1976 |
| 3945073 | Machines for punching and for closing wire binding elements A machine for punching and subsequently binding packets of sheets to book form with wire binding elements comprises a punch and a press connected to, and driven from a common operating member through a mechanical drive, the mechanical drive being so arran... | 03/23/1976 |
| 3945074 | Machine for stiffening workpieces such as shoe components A method and a machine for stiffening part of a flexible workpiece, such as the toe portion of a vamp, causes it to register with the tacky layer of a correspondingly shaped molten deposit of thermoplastic which simultaneously is being cooled to effect re... | 03/23/1976 |
| 3945075 | Cement lasting the side and heel portions of a shoe assembly A machine that includes nozzles that move along and apply cement in the corners between the side and heel portions of an upper mounted on a last and the corresponding portions of an insole located on the last bottom and that also includes side wipers and ... | 03/23/1976 |
| 3945076 | Circular toothbrush A circularly movable mechanical toothbrush having a fly wheel type drive shaft loosely joined to a rod near one edge thereof. Actuation of the fly wheel causes the rod to rotate in a distinct motion that causes toothbrush bristles to be maintained at all ... | 03/23/1976 |
| 3945077 | Strip cleaning mechanism A motor drives a film strip take-up reel to draw moving picture film from a freely rotating film supply reel through a film cleaner including a pair of oppositely rotating brushes also driven from said motor. The brushes are disposed on aligned and parall... | 03/23/1976 |
| 3945078 | Floor scrubber A machine for scrubbing floors has a frame with an open bottom from which a lower run of an endless fabric belt projects downwardly, this belt passing around a large traction roller and several idler rollers journaled in the frame. One of the idler roller... | 03/23/1976 |
| 3945079 | Laminated photographic film cleaning fabric A cleaning fabric having a contact surface against which the surface of a photographic film can be rubbed to remove foreign particles from the film. The fabric is a laminate comprising a non-woven wiping layer of soft fine intersecting bonded fibers defin... | 03/23/1976 |
| 3945080 | Broom assembly A surface sweeping broom in which the handle is attached to an elongated brush head of circular cross-section. The brush head contains a cylindrical inner core overlaid with a molded thermoplastic brushing surface. The molded brushing surface is comprised... | 03/23/1976 |
