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 |
| 4015294 | Diving helmet assembly Described is a diving helmet which includes a relatively inexpensive adapter unit custom fitted to an individual diver. The assembly includes a standardized helmet body having an inner surface generally conforming to the surface of the adapter unit so as ... | 04/05/1977 |
| 4015295 | Diving suit and neck seal therefor A diving suit has a collar and the neck seal therefor has first and second elliptical rings, both of the same size and dimensioned to freely receive the head of the wearer. The first ring is the lower one and the upper end of a neck dam is clamped between... | 04/05/1977 |
| 4015296 | Elastic stocking An elastic stocking has external and internal sides; a leg engaging portion thereof includes two longitudinal edges, and each of the edges has internal and external sides, respectively. The stocking includes a zipper which has two synthetic plastic materi... | 04/05/1977 |
| 4015297 | Safety canopy for crib A generally horizontal, rectangular panel has end and side panels depending therefrom which are adjoined along respective vertical edges to form a shallow box-like structure which closely receives the top of a crib or similar enclosure. Attachment means a... | 04/05/1977 |
| 4015298 | Tiltable headboard A tiltable headboard for beds which provides for comfortable and proper support of the head and upper body of a person who is in a reclining-seated position on the bed. The headboard swings out about a fixed upper pivot and has a telescoping lower section... | 04/05/1977 |
| 4015299 | Water bed A water bed construction includes a box foundation on which rests an upwardly opening rectangular coffer formed by a polyurethane sheet and a polyurethane perimetrical member disposed thereon. The coffer cavity receives and contains a shallow water mattre... | 04/05/1977 |
| 4015300 | Flotation jacket A flotation jacket has flotation material therein to provide adequate inherent buoyancy for adults. A flap of waterproof insulative closed cell material is concealed on the inside of the body of the jacket and can be released therefrom to be converted int... | 04/05/1977 |
| 4015301 | Cut-off stock feeding device for an automatic high speed cold nut former A cut-off stock feeding device for an automatic high speed cold nut former and more particularly a transfer feeding disc of intermittent rotary motion provided with indentations along the periphery thereof to receive and transfer cut-off blanks to success... | 04/05/1977 |
| 4015302 | Expansion joints A buried expansion joint for use in the construction of bridges incorporates a pad of flexible plastics material, such as neoprene, located over an expansion gap between structural members and a flashing of neoprene or other plastics material extending ov... | 04/05/1977 |
| 4015303 | Support element for a bridge Supporting apparatus for supporting bridge portions on a portable bridge of the type including a plurality of bridge portions movable from storage positions to positions of use connected to one another in series. The supporting apparatus includes two supp... | 04/05/1977 |
| 4015304 | Drilling or reaming machine A drilling machine especially adapted for reaming tubes includes an elongated hollow drive shaft having a cutterhead attached to its forward end and a drive piston attached to its rearward end. Fluid pressure is applied to the rear end face of the drive p... | 04/05/1977 |
| 4015305 | Mop holder A mop holder comprising a holding member for holding a mop formed of a synthetic resin having a high resistance to folding, a handle shaft and a linkage member for linking said holding member to the handle; wherein said holding member comprises a pair of ... | 04/05/1977 |
| 4015306 | Applicator pads An applicator pad for an automobile polish having a resilient foam core covered by layers of heat-sealable film and outer fabric. The edges of the fabric are adhered together by the heat-sealed edge of the film.... | 04/05/1977 |
| 4015307 | Apparatus for cleaning rotating cylindrical surfaces A means, for removing undesired foreign matter from rotating cylindrical surfaces, such as, for example, the blanket of a blanket cylinder in an offset press, comprises a scrub means including a rotatable brush and an absorbent wiper roller. Solvent is ap... | 04/05/1977 |
| 4015308 | Vacuum bleed system for a vacuum cleaner or the like A floor care appliance is provided in which suction pressure (vacuum) of cleaner suction air may be discretely modified in a series of steps by selective stages of bleed of atmospheric air into the dirt-collecting bag containing partial vacuum chamber. A ... | 04/05/1977 |
| 4015309 | Hinge with compressions spring for counter-balancing weight of leaves A spring-biased hinge for the weight compensation of two structural members that are to be pivotably interconnected by means of the hinge for pivotal motion about a horizontal axis, particularly for counter-balancing the weight of a lid pivotable with res... | 04/05/1977 |
| 4015310 | Pendant for drapery traverse rod This invention relates to drapery rods having pendants or hangers for supporting drapes or curtains and more particularly to pendants which incorporate means for facilitating the attachment of drapery hooks thereto and for preventing the accidental diseng... | 04/05/1977 |
| 4015311 | Buckle with a visual tension indicator This invention relates to a buckle usable for securing the two ends of a looped band together about a workpiece, the new and unusual feature being directed to the provision of a distortable element provided in the buckle body which as a tension applying t... | 04/05/1977 |
| 4015312 | Tab puller and slide fastener protector A tab puller and slide fastener protector which has two arms pivotally connected together at their ends in spaced relation and adapted to be swung with respect to each other in substantial parallel planes. The upper arm is provided with a housing designed... | 04/05/1977 |
| 4015313 | U-bolt clamping element A rod has teeth serrated along the sides of its end sections or rolled thereon somewhat as a thread. The rod is bent thereafter into U-shape having an arcuate web which encompasses one-half of a circular element such as a pipe, collar or the like. A locki... | 04/05/1977 |
| 4015314 | Yarn tape deweaving method and apparatus Disclosed is a method and apparatus for removing a filler thread from a multiple end yarn tape. The yarn tape containing a filler thread is passed over an elongated framework which defines a filler thread removal region. In this region the filler thread i... | 04/05/1977 |
| 4015315 | Method of setting cathode-G1 spacing In an electron gun assembly comprising at least one oxide coated cathode and a G1 grid, a method of spacing the cathode a predetermined distance from the G1 grid includes the following steps. First, the cathode oxide coating is moistened with water causin... | 04/05/1977 |
| 4015316 | Combination tension and slub catching device A combination tension and slub catching device wherein there are relatively fixed and movable members disposed in confronting relation to each other which define a narrow yarn passage, one of which is comprised of a plurality of narrow bars disposed trans... | 04/05/1977 |
| 4015317 | Process for sizing textile fibers for use on water jet looms Textile fibers exhibiting improved characteristics for weaving on water jet looms are prepared by sizing such fibers with copolymers of an aliphatic -olefin such as ethylene and an ammoniated ,ଲ-ethylenically unsaturated carboxylic aci... | 04/05/1977 |
| 4015318 | Method of skewing twill fabric to avoid leg twist Leg twist in jeans made of twill fabrics may be avoided by skewing the fabric clockwise or counterclockwise depending on the twill direction before making the garment so that when the garment is laundered the positions of the warp and filling yarns will r... | 04/05/1977 |
| 4015319 | Method for manufacturing an ultrasonic transducer An ultrasonic transducer and a method for manufacture thereof in which a piezoelectric crystal is bonded to a flat diaphragm with the neutral bending axis of the crystal/diaphragm combination being within the bonding agent. The diaphragm is then pressed i... | 04/05/1977 |
| 4015320 | Roller for the pressure treatment of webs of goods A roller for the pressure treatment of webs of goods with a rigid roller core and a hose-shaped roller mantle of rubber or rubber-like material with reinforcing inserts, in which the reinforcing inserts include a monofile coil of a strong substantially no... | 04/05/1977 |
| 4015321 | Welded pipe fitting and method of making same A threaded pipe fitting which is fabricated from two pieces of pipe or other cylindrical tubing or stock. The upper piece of pipe is relatively thick, so that pipe threads (either internal or external) may be machined therein without unduly weakening the ... | 04/05/1977 |
| 4015322 | Apparatus for locating connectors onto a circuit board Apparatus for locating connectors onto a circuit board comprises a feed device for feeding stepwise a continuous strip of connectors. Each connector has a clamp at one end and the feed device feeds the strip through successive stations in which the clamps... | 04/05/1977 |
| 4015323 | Pipe mating tool A tool for mating two pipes, having two pairs of arcuate clamping jaws of adjustable locked diameter moved towards each other by a pair of linking means mounted to opposite sides of each pair of jaws so as to lie and move in a simple plane. Inserts are pr... | 04/05/1977 |
| 4015324 | Device for separating flange pipes Pipe flanges of a flanged-pipe joint are separated for replacement of seals or any other purpose by fitting an expandable plug into a bore of one of the flanges, inserting a plate in the gap between the flanges and threading a screw into the expandable pl... | 04/05/1977 |
| 4015325 | Method and apparatus for securing inserts to containers A method and apparatus for assembling an apertured insert onto a rim extending from the end of a metal container and surrounding an opening therein is disclosed herein. The method contemplates inserting an expandable support member through the aperture in... | 04/05/1977 |
| 4015326 | Method of mounting a strain gage to a surface A strain-deformable wire resistance strain gage is cemented to a ship's propeller or turbine blade, and covered with a water vapor curable silicone plastic polymer protective layer in an unset state; and metal screen overlay is track-welded with the aid o... | 04/05/1977 |
| 4015327 | Method of making a decorative stereo speaker enclosure A decorative enclosure and a method for making such enclosure is disclosed in which a face mask of a person is made by applying a liquid material to the face, the material hardening at body temperature after which a casting is made from the hardened mater... | 04/05/1977 |
| 4015328 | Multilayered circuit assembly including an eyelet for making weldable connections and a method of making said assembly A method of making a multilayered circuit assembly from a plurality of flat, flexible circuit elements, wherein each circuit element includes a substrate having conductive means to define an electrical path of travel which is formed between a base layer m... | 04/05/1977 |
| 4015329 | Termination of electric cables An electric line (i.e. a cable or a conduit containing at least one insulated conductor) is terminated by a terminator including first and second members that telescope together. These members have recesses in their adjacent faces and a hardenable insulat... | 04/05/1977 |
| 4015330 | Cutting board case and knife set A cutting board case and knife set is shown in which the cutting board comprises two halves, folded along a center line, and secured together by means of a sliding bolt type latch. The two halves are hinged, and each half has a knife handle recess which a... | 04/05/1977 |
| 4015331 | Domestic or tradesman's knife A domestic or tradesman's knife is provided with cutting teeth ground off alternately on opposite sides to form a cutting edge on each side of the blade in the manner of the teeth of a saw, the invention consisting in the provision of cutting teeth interm... | 04/05/1977 |
| 4015332 | Crown form and method The disclosure is of a novel dental crown form and the method of its installation. The crown form of the invention is a tubular shell of a flexible polymeric resin corresponding generally to the configuration of a natural tooth. An embodiment of the crown... | 04/05/1977 |
| 4015333 | Orthodontic band forming method and apparatus Method and apparatus for providing an orthodontic band shaped to an individual tooth is disclosed wherein a tooth replica is encircled by the band and optionally an annular conducting member surrounds the band. The band is shaped to the tooth by rapidly c... | 04/05/1977 |
