Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 4298991 | Peripheral view blinders Disclosed is apparatus to limit the peripheral vision of the user. A pair of shields are pivotally attached to the templepieces of a pair of eyeglasses or an eyeglass-like frame. The pivotal movement is arrested by an inwardly extending pivot stop located... | 11/10/1981 |
| 4298992 | Posteriorly stabilized total knee joint prosthesis A box-like recess between the condylar portions of the femoral component has a transverse convexly curved cam follower portion at the posterior extremity of a superior wall which engages a concave cam surface at the inferior portion of the posterior surfa... | 11/10/1981 |
| 4298993 | Endoprosthesis of the body of the innominate bone An endoprosthesis of the innominate bone body comprises a visor curved longitudinally and transversely so as to form a concave surface which faces the head of the femur, and elements for fixing the visor. One of the elements for fixing the visor is essent... | 11/10/1981 |
| 4298994 | Posterior chamber intra-ocular transplant device An intra-ocular implantable device and a method of surgically implanting such device in which upper and lower haptic loops are attached to a lens on opposite sides thereof for contacting the ciliary sulcus (or capsular bag) to position the lens in the pos... | 11/10/1981 |
| 4298995 | Intraocular lens construction The invention contemplates an improved lens implant for use in ophthalmological surgery, the lens being a replacement for a cataract-clouded natural lens, and the replacement being installed via the pupil at the iris as the operative step following remova... | 11/10/1981 |
| 4298996 | Magnetic retention system for intraocular lens A lens for implantation in the eye upon removal of the crystalline lens. The lens includes a light focusing body and one or more supports extending from the lens body. Each lens support carries a first magnetic fixation member positionable at one side of ... | 11/10/1981 |
| 4298997 | Device for inhibiting the formation of fibrous capsular contractures in silicone breast implants and method A circular disc of thin silicone sheet material, such as Silastic, is adhesively attached to an annular band of Dacron felt material, the periphery of the disc and the outer rim of the Dacron felt band being substantially congruent. The combined disc and ... | 11/10/1981 |
| 4298998 | Breast prosthesis with biologically absorbable outer container A newly developed breast prosthesis overcomes the tightness and contracture of the fibrous capsule which forms around the existing prosthesis. The unique construction of the new prosthesis causes the capsule to form at a predetermined, controlled distance... | 11/10/1981 |
| 4298999 | Women's protective key ring A women's protective key ring, intended for carrying keys and for use for defensive purposes in the event of an unexpected attack, having a handle which can be grasped with the entire hand of the owner, and an ornament-striker attached to the handle so as... | 11/10/1981 |
| 4299000 | Method for the production of threaded nuts by cold forming A method for the preparation of hexagonal nuts by cold forming wherein a blank is shaped and formed to a hexagonal configuration wherein the distances across the flats of the hexagon are greater than in the finished nut, and thereafter the rough nut is fo... | 11/10/1981 |
| 4299001 | Nut tapping machine The invention provides a nut tapping machine of the type driven by a drive chuck assembly comprising two sets of shank-embracing driving chucks one of which is always in engagement with the tap shank to drive it and each set is releasable sequentially fro... | 11/10/1981 |
| 4299002 | Arrangement for use on a vehicle for transporting portable bridges An arrangement for use on a vehicle, especially truck for transporting portable bridges, with the sections of a portable bridge being adapted to be arranged one above the other on support frames, and being adapted to be received on the support frames, by ... | 11/10/1981 |
| 4299003 | Vehicle washing apparatus for washing the front, sides and rear of a vehicle A vehicle wrap around type brush cleaning assembly comprised of a single brush support arm pivoted at one end to an overhead frame structure inside a predetermined path of a vehicle to be washed. A rotatable brush is mounted on a shaft connected to the op... | 11/10/1981 |
| 4299004 | Powered hand tool for use in household cleaning operations The tool includes a water-tight housing of an elongated configuration having a handle defined therein, an electrically energizable motor mounted in the housing and having a rotary output shaft therefor; a pair of wells spaced 90° apart are provided in th... | 11/10/1981 |
| 4299005 | Applicator An applicator adapted to neatly apply lotions, medicaments, and the like to the skin of a user reaches the entire back area of the user by hand manipulation of an elongated stem or handle pivotally connected to a head carrying an absorbent pad which is sa... | 11/10/1981 |
| 4299006 | Elastic drip guard for paint brushes A loop of elastic material adapted for removable placement about the handle body portion of the paint brush at the base of the bristles is U-shaped in cross section to define an outwardly open trough for catching excess paint which might otherwise flow do... | 11/10/1981 |
| 4299007 | Vacuum cleaner for professional and household purposes A vacuum cleaner for professional and household purposes, with actuating elements for introducing the individual apparatus functions, including, for instance, turning the blower motor on and off, rewinding the power supply line into the housing interior, ... | 11/10/1981 |
| 4299008 | Curtain rail A curtain rail consists of a number of interconnected lengths of extruded aluminium support rail of inverted channel section with inwardly projecting ribs at the mouth of the channel section. In the installed curtain rail, the ribs are embraced by one-pie... | 11/10/1981 |
| 4299009 | Machine for separating the bone and the flesh from the feet of slaughtered ungulates A machine for boning feet comprises on a frame, fixed immobilization means and a movable extraction member constituted by at least one set of jaws. In order to bone the feet of hoofed animals, said immobilization means are constituted by at least one set ... | 11/10/1981 |
| 4299010 | Animal pelting system A system of removing the pelt or skin from a carcass of an animal and in particular a sheep which involves working up the carcass so that the skin is removable substantially as an envelope from trunk regions, clamping the worked up pelt and inserting a tr... | 11/10/1981 |
| 4299011 | Web take-off apparatus at the doffer of a card A card is equipped behind the doffer roll (7) with a pair of delivery rolls (8, 8a) for the web (9) provided each with a stationary grazing blade (12, 12a) for seed particles or similar impurities. Between the nip line K of the delivery rolls (8, 8a) and ... | 11/10/1981 |
| 4299012 | Hose clamp A clamp structure with a clamping band having open ends adapted to be mechanically interconnected by outwardly extending hooks in an inner band portion operable to engage in corresponding apertures provided in an outer band portion; at least one plastical... | 11/10/1981 |
| 4299013 | Paper clips A spring wire clip for clipping together sheets has a head and a pair of legs extending forwardly and outwardly from the head. Each leg has a forward transverse portion and a return portion at the end of the transverse portion which lies substantially out... | 11/10/1981 |
| 4299014 | Buckle for safety belts The invention relates to plate type buckles for safety belts of the kind formed of flat webbing and is particularly concerned with such a buckle wherein engagement between the two parts can only occur when the webbing is not twisted in a way which would l... | 11/10/1981 |
| 4299015 | Process for space dyeing and texturing synthetic yarns A process is provided for space dyeing synthetic yarn in which the synthetic yarn, such as polyester yarn, wound upon a yarn package, is first treated by immersing the ends of the package into a solution of at least one sublimatable ink, thereby dyeing th... | 11/10/1981 |
| 4299016 | Cathode ray tube neck cleansing-scavenging means and method Cleansing-scavenging means and method are disclosed for removing detritus from the inner surface of the neck of a cathode ray tube during manufacture. The means comprises probe means for insertion into the neck, and scrubbing means extending from the prob... | 11/10/1981 |
| 4299017 | Apparatus for smooth rolling the bearing seats of crankshafts This rolling apparatus comprises tool rollers for finish or smooth rolling the bearing seats of crankshafts. Each tool roller is supported by two idler rollers along its length. In addition, the tool rollers are supported against axial displacement by gli... | 11/10/1981 |
| 4299018 | Roll for use under high or low temperature conditions A roll for use under high or low temperature conditions, for example a conveyor roll in a flat glass annealing lehr, comprises a tire of a different material from collars on the roll between which the tire is held. The tire and at least one collar have ma... | 11/10/1981 |
| 4299019 | Die-set combination for making pin-back badges The present invention concerns a combination of mutually interfitting die and press-block elements adapted for manual use and operation with each other to produce a finished and permanent assembly of the separate components of a pin-back button or badge.... | 11/10/1981 |
| 4299020 | Flywheel puller A flywheel puller includes a pair of planar surfaces disposed at an angle to each other with each surface having a center hole and at least one set of holes concentrically arranged around each center hole to accommodate threaded members for use in engagin... | 11/10/1981 |
| 4299021 | Axial impact tool The invention relates to an axial impact tool for driving nails or staples into normally inaccessible places. The tool consists of a guide tube and impact rod slidable inside of said guide tube and containing a heavy handle extending outside of one end of... | 11/10/1981 |
| 4299022 | Method of making transport drum A method and apparatus are described for providing a transport drum for use in equipment for the wet processing of photographic film and/or papers. A supporting insert is mounted on and secured to an axle; the insert includes a plurality of longitudinally... | 11/10/1981 |
| 4299023 | Machine for winding and inserting coils In a machine for winding and inserting coils of the type wherein a flier is rotated so as to wind the conductor drawn from the flier around two blades of an insertion tooling and an auxiliary plate located radially outwardly of said two blades and spaced ... | 11/10/1981 |
| 4299024 | Fabrication of complementary bipolar transistors and CMOS devices with poly gates Specific impurity concentration regions are used for the simultaneous formation of CMOS devices and complementary bipolar transistors to produce high voltage, high performance bipolar transistors. The last diffusion step for shallow P+ and N | 11/10/1981 |
| 4299025 | Methods and apparatus for placing windings in stator core slots and coil injection machine tool packs An injection shuttle system is disclosed for fabricating stator core assemblies. Injection tooling and a stator core are selected and positioned on a shuttle means at a selection station for moving to coil loading stations and a transfer station. The inje... | 11/10/1981 |
| 4299026 | Method of assembling a motor starting relay A method of assembling a motor starting relay whereby a series of open-ended cases are advanced in sequence to an assembly station, a pair of contacts which are assembled by providing two lines of terminals and two lines of springs and having each head sp... | 11/10/1981 |
| 4299027 | Apparatus for applying reinforcing film pieces to a pair of slide fastener stringers An apparatus for applying pieces of reinforcing film of synthetic resin to a pair of continuous slide fastener stringers at longitudinally spaced locations thereof, comprises means for feeding the stringers longitudinally along a first path selectively at... | 11/10/1981 |
| 4299028 | Method for connecting substrates An article for connecting together two substrates, for example the inner conductors of two coaxial cables to be spliced, comprises a sleeve having axially slidably mounted thereon at least one spacer, which spacer enables any member subsequently positione... | 11/10/1981 |
| 4299029 | Method of making an electrically conductive game ball A ball for playing a game, such as tennis, and having a plurality of unwoven electrical conductive networks which are formed by electrically conductive fibers and which extend at least partially on the outer surface of the ball. The ball is made by first ... | 11/10/1981 |
| 4299030 | Hand-operated shearing devices Spring scissors are provided in which, in addition to the resilient means which provide jaw-opening bias, lateral-urging means are provided, which act on the handles of the scissors to produce or mechanically augment the cross-cutting pressure between the... | 11/10/1981 |
