Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 4293957 | Wet suit A wet suit for underwater use is constructed to yield more readily to movements of the wearer by providing one or more longitudinal slits, as for example in the arm and leg portions of the suit, and closing each of these slits with an overlying length of ... | 10/13/1981 |
| 4293958 | Head gear An article of apparel specifically designed to be worn on or about the head of a wearer and comprising in essence a combination head band and shade producing element extending outwardly therefrom. A support band is specifically configured to be disposed i... | 10/13/1981 |
| 4293959 | Stretch knit body suit with padded areas A means and method for designing and fabricating garments, particularly suited for the home sewer. Using a stretch body suit having cushioned areas, muslin panels are draped on the individual wearing the suit to conform to the individual shapes and contou... | 10/13/1981 |
| 4293960 | Headgear A helmet comprises a helmet lining; a helmet shell and an impact absorbing crash element for interposition between the helmet lining and a helmet shell, the helmet lining comprising a curved first part adapted to cover the nape of the neck and a curved se... | 10/13/1981 |
| 4293961 | Pulsatile flow cardiopulmonary bypass pump A pulsatile flow cardiopulmonary bypass pump for use outside of the body during cardiac surgery and/or in the period immediately thereafter is disclosed. A grooved spinner is motor driven through a fluid coupling which enables idling of the spinner during... | 10/13/1981 |
| 4293962 | Bone plug inserting system A device for plugging the medullary canal in joint replacement surgery which prevents the cement used for fixation from extending beyond that point where it is useful and which also creates a closed space to facilitate more complete cement filling of the ... | 10/13/1981 |
| 4293963 | Unrestrained elbow prosthesis The prosthesis disclosed is an unrestrained or hingeless elbow prosthesis including a humeral implant component and an ulnar implant component. The metal humeral component is comprised of an elongated stem with a substantially cylindrical articulating sur... | 10/13/1981 |
| 4293964 | Design for flush tank control using non-buoyant flapper valve A demand type flush tank control for saving water by the utilization of a water release valve of the flapper type in the water storage tank of a toilet, with such flapper valve being non-buoyant such that it will close off the flow of water from the tank ... | 10/13/1981 |
| 4293965 | Unitary furniture element A cushion member of uniform thickness having a rectangular shape in plan view, with a center line of the cushion member dividing same into two plan view square portions. The cushion member is segmented into four isosceles right triangular sections arrange... | 10/13/1981 |
| 4293966 | Leafcutter bee larvae extracting method and device A method and apparatus for cleaning bee culture nests or hives of the spirally wound type, which are formed by spirally wound strips of corrugated and separator material. Bee larvae are removed and the nests cleaned by unwinding and separating the corruga... | 10/13/1981 |
| 4293967 | Pivotal deck ramp A deck ramp is pivotally affixed to the bow of a boat allowing the deck ramp to serve either as a portion of the deck or as a ramp. When the deck ramp is in the closed position the deck ramp serves as a portion of the deck, which when in the open position... | 10/13/1981 |
| 4293968 | Interconnected water skis Application of at least one slot notch or groove to or near the rear of a single or pair of towed planing boards or surfaces. Such slots or the like induce a water geyser at speed that improves the appearance and/or directional control of such boards. Suc... | 10/13/1981 |
| 4293969 | Inflatable seal An inflatable seal for use in an adjustable dockboard unit for sealing the unit against the flow of air therethrough into and/or out of the building in which the dockboard is being used.... | 10/13/1981 |
| 4293970 | Belt cleaning apparatus Disclosed is a cleaning apparatus for continuous, abrasive belts of essentially any dimension, which apparatus has a base having elongated belt supporting mandrel means mounted thereon, and belt drive roll means rotatably mounted on the base and having it... | 10/13/1981 |
| 4293971 | Floor treating machine with squeegee The specification discloses a floor scrubber wherein the squeegee is connected to the machine by a coil spring. The squeegee is free of direct rigid connection to the machine such that it can shift readily from side to side through the action of the sprin... | 10/13/1981 |
| 4293972 | Handle attaching means for brooms and the like Handle attaching means for brooms and the like consisting of a tubular member having a portion of large diameter for receiving and holding a handle and a portion of reduced diameter for insertion into an opening in a broom, the portion of reduced diameter... | 10/13/1981 |
| 4293973 | Floor cleaning device A matted fleece cleaning pad is supported on a number of spread-out tufts of bristles set in cavities of a holding plate, the bristles of each tuft being of different length and made of a synthetic plastic, preferably a polyamide. By this arrangement, the... | 10/13/1981 |
| 4293974 | Arm to blade connector A windshield wiper arm includes a free end which is U-shaped in cross section to form depending ears. The ears include slots open at the free end and detents adjacent the rear edges. The depending ears are received in an opening of the web of the central ... | 10/13/1981 |
| 4293975 | Attachment for windshield wiper blades An attachment for windshield wiper blades for vehicles and comprising a body member having an elongated slot or recess provided therein for removably receiving the wiper blade, the outer surface of the body oppositely disposed from the recess being of an ... | 10/13/1981 |
| 4293976 | Cabinet hinge Cabinet hinge for the articulated connecting of two cabinet parts, and particularly for pivoting a cabinet door to a cabinet body, having a first hinge which is adapted to be fastened in a recess of the first cabinet part and having a second hinge part wh... | 10/13/1981 |
| 4293977 | Poultry trussing device A poultry leg retainer formed of a single elongated piece of material that is limitedly resiliently deformable, has a central U-shaped portion adapted to fit in the creases of poultry hocks with extensions to substantially right angle bends with outwardly... | 10/13/1981 |
| 4293978 | Poultry head pulling apparatus In the processing of poultry, the heads are separately and individually pulled downwardly along a vertical path during continuous advancement to automatically separate the heads from the necks at the jaw bone and at the base of the skull, salvaging all of... | 10/13/1981 |
| 4293979 | Forming press for sausage and the like A press for forming and shaping foodstuffs. The press has an extrusion die containing a plurality of open ended elongated passages and a V-shaped common inlet. Attachments to the press provide a convenient and easy method of further processing rough sized... | 10/13/1981 |
| 4293980 | Method for washing animal casings There is disclosed a method of mechanically washing an animal casing such as a bung. The method involves placing the casing on an elongate support element so that the element extends through the casing, the element having a duct or ducts for washing liqui... | 10/13/1981 |
| 4293981 | Crab butchering machine A central twin or single chain conveyor with abutments moves crabs through a centering device, beneath leg hold-downs and into an intersecting chain having projections that strike the carapace's leading edge to pivot it away from the crab body, and into a... | 10/13/1981 |
| 4293982 | Tool for opening up fiber bales A tool for opening fiber bales in which a plurality of axially spaced blades are mounted coaxially on a shaft. Each of the blades has a periphery provided with projecting sawteeth which engage the fibers of a bale to be opened. Each of the sawteeth is bou... | 10/13/1981 |
| 4293983 | High speed gill box A high speed gill box having an upper head and lower head each of which contains a compliment of individual unconnected faller bars constrained to move in a smooth closed loop path. Each head is constructed to engage the associated faller bars outside of ... | 10/13/1981 |
| 4293984 | Spring tension fastener A fastener to retain at least two members together under spring tension including a bolt having a fastener head shaped with two lateral extending protrusions respectively forming two shoulders for engagement of an outside surface of one of the members to ... | 10/13/1981 |
| 4293985 | Method and apparatus for making bounce crimped yarn Multi-filament thermoplastic bounce crimped yarns having improved fiber-fiber coherency and intermediate non-entangled yarns and methods and apparatus for making such yarns. The process is characterized by the use of a novel bounce crimper which produces ... | 10/13/1981 |
| 4293986 | Method of making a quartz crystal oscillator A quartz crystal oscillator package comprising a quartz crystal vibrator leaf enclosed in an evacuated housing. The vibrator leaf frame is sandwiched and sealed between a pair of housing elements formed by etching at one time the periphery of each housing... | 10/13/1981 |
| 4293987 | Method of fabricating capacitive touch switch panel An improved technique for the manufacture of capacitive touch switch panel assemblies, utilized to control appliances and the like, provides simplified construction and manufacture. The technique involves the formation of conductive touch pads on one majo... | 10/13/1981 |
| 4293988 | Controlled deflection roll A controlled deflection roll comprising at least one piston-like or punch-like pressure or support element which is provided with a bearing or contact surface upon which there can slide or bear the roll shell of the controlled deflection roll. The bearing... | 10/13/1981 |
| 4293989 | Glue roller for labelling machine Glue roller for use in labeling machines and the like, comprising a metal hub, a tubelike support body fixed on the hub, and an elastic sleeve with a cylindrical outer surface seated on the support body. The support body is a first moulded part of foam ma... | 10/13/1981 |
| 4293990 | Method of making embossing roll for producing paper towels A roll of embossed paper towelling in which the embossing comprises lands and valleys between the lands wherein the lands are in rows extending at an acute angle to the longitudinal direction of the towelling. The acute angle of the rows of lands offsets ... | 10/13/1981 |
| 4293991 | Apparatus for assembling ladder-type frames This invention resides in an apparatus for assembling frames of the type having transverse members extending between side members and connected thereto at each end by a compression joint. The apparatus includes a main support frame for supporting a pair o... | 10/13/1981 |
| 4293992 | Diesel fuel injector tool The invention comprises a tool for removing fuel injectors from diesel engines without damaging any adjacent component parts or user's hands. The invention comprises an elongated member having a U-shaped injector engaging member at one end. The elongated ... | 10/13/1981 |
| 4293993 | Tool for removing casement window from building A tool for removing casement windows comprises a first bar bearing on the interior side of the main frame, a second bar bearing on the exterior vertical surfaces of the building, and apparatus connecting the two bars for controllably pulling the window to... | 10/13/1981 |
| 4293994 | Slidering method and apparatus Sliders are installed on separated ends of slide fastener stringers by positioning the slide fastener stringers on an upper surface of a stringer guiding means which has converging flanges for guiding and directing slider engaging means of the stringers i... | 10/13/1981 |
| 4293995 | Method of making camshaft for reciprocable piston engines A camshaft with cams and bearings for reciprocable piston engines, which comprises a hollow shaft having the cams and bearings designed as cam rings and bearing rings and fastened to the hollow shaft.... | 10/13/1981 |
| 4293996 | Method for securing a wheel to a rotatable shaft A wheel of a turbomachine is secured to a shaft of the machine by initially securing the wheel between one end of the shaft and a piston-like member. A space is formed between opposed sides of the member and wheel by moving the member relative to the whee... | 10/13/1981 |
