...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 4288877 | Disposable protective garment A disposable bib, napkin or mini-apron of generally quadrilateral shape having a neck cutout in its upper edge portion and two shoulder pieces adjacent the cutout. The entire upper edge portion is coated with a pressure sensitive adhesive adapted to adher... | 09/15/1981 |
| 4288878 | Painter's protective device The disclosure teaches a painter's protective device providing a mask adapted to cover the forehead, eyes and nose of the wearer and having suitable eye holes and a visor projecting outwardly from the forehead portion of the mask above the eye holes and m... | 09/15/1981 |
| 4288879 | Maternity pillow A pillow for support of the expanded abdomen of a pregnant woman during the latter stages of pregnancy. The pillow is substantially wedge-shaped and has an appropriately shaped cavity in its upper surface for receiving and supporting the expanded abdomen ... | 09/15/1981 |
| 4288880 | Bee vacuum device and method of handling bees A bee handling device and method for removing worker, drone and queen bees from a comb includes a chamber having an entrance opening of a size to pass a comb frame and attendant bees. The chamber is subjected to vacuum drawing in air currents flowing acro... | 09/15/1981 |
| 4288881 | Bridge laying apparatus A bridge laying apparatus of the type having a vehicle and at least two bridge sections which are transportable thereon in a superimposed position and are joinable into a bridge for spanning an obstacle by devices carried by the vehicle. The bridge includ... | 09/15/1981 |
| 4288882 | Endoscope sheath cleaning device An endoscope sheath cleaning device comprises an upper plate, a hole formed in the upper plate to allow for the insertion of an endoscope sheath into the cleaning device, a nozzle head disposed under the hole, an endoscope sheath cleaning mechanism which ... | 09/15/1981 |
| 4288883 | Combined tooth brush and gum massaging A combined tooth brush and gum massaging device comprising a bristle head which includes an intermediate bristle portion and at both sides adjoining massaging portions, whereby the width of the bristle head is enlarged up to a value that the bristle porti... | 09/15/1981 |
| 4288884 | Mop having skip slit absorptive element An improved mop of the type comprising a conventional handle and frame and including a novel absorptive element comprising a skip slit absorptive sheet in the shape of a lattice. The absorptive element has an unslit portion capable of being fastened by th... | 09/15/1981 |
| 4288885 | Hot water vacuum extraction machine with reverse fan cooled vacuum motor A vacuum pump assembly, axially mounted within a hot water vacuum extraction machine enclosed housing, includes an enclosed cylindrical casing. A vertical axis shaft mounted fan at the lower end of the vacuum pump assembly casing rotates within an annular... | 09/15/1981 |
| 4288886 | Air broom An air broom for suspension from the hand of the user while standing wherein a power unit and an air impeller connected to and driven thereby support an outwardly extending hollow wand whose weight and leverage are coordinated with that of the power unit ... | 09/15/1981 |
| 4288887 | Frame corner connector A corner connector arrangement is disclosed for use in joining like vertical and horizontal frame sections for use in framing panels in the assembly of sliding doors. The connector, comprised of two clamp sections and having protrusions bearing against th... | 09/15/1981 |
| 4288888 | Device for removing feathers from game fowl A device for removing feathers from game fowl and poultry comprising a rotor including a hub disposed with its axis extending generally horizontally and a multiplicity of resilient feather removing fingers extending generally radially outwardly from said ... | 09/15/1981 |
| 4288889 | Apparatus for drafting fibers The invention contemplates a method for separating fibers fed in the form of fibrous material, wherein the material is pinched in the cross-section in such a manner that the pinching action is applied to fibers spaced from one another at a certain distanc... | 09/15/1981 |
| 4288890 | Hook for a hook-and-eye fastener A hook for a hook-and-eye fastener comprises a body including a base having a plurality of angularly spaced prongs for penetrating a garment fabric, and a circular retainer including a central raised portion having a plurality of angularly spaced ridges, ... | 09/15/1981 |
| 4288891 | Cord lock having depressable plunger A cord lock having a body containing a plunger which can be pressed inwardly relative to the body against the resistance of an actuating spring, with the body and plunger having apertures through which a cord or cords can extend and which have edges actin... | 09/15/1981 |
| 4288892 | Buckle In a buckle for joining band ends together, one band end is provided with longitudinally arranged indentations in or adjacent each side edge, and a channel-shaped, adjustable coupling member of the buckle has teeth therein arranged to register with band e... | 09/15/1981 |
| 4288893 | Method of cooling stuffer crimped yarn A liquid jet, which is not decomposed to droplets, is guided onto a hot yarn wad in a cooling section with rod guide means, and this leads to rapid, very uniform cooling. Smooth thread travel is produced during take-off at thread speeds of 2000 m/min and ... | 09/15/1981 |
| 4288894 | Method of manufacturing pressure vessels by heat forming The present invention relates to the method of manufacturing a pressure vessel for use as a hydraulic accumulator, pulse dampener or like apparatus employing an elastomeric bladder member, from a cylindrical member which includes the steps of deforming a ... | 09/15/1981 |
| 4288895 | Bearings This invention is a method of making a flanged half-bearing in which a semi-cylindrical journal bearing shell and two semi-annular end flanges are held in a jig with one flange in contact with each axial end of the shell over a part only of the thickness ... | 09/15/1981 |
| 4288896 | Method for manufacturing an improved plug valve A thermoplastic lined plug valve is prepared using a plug having a nonlocking taper and a stem at the small end of the plug. The plug is seated initially by forcing the plug into the plug cavity, raising the temperature of the plug valve above the service... | 09/15/1981 |
| 4288897 | Method of producing a nucleate boiling surface on a heat transfer member Improved heat transfer surface for nucleate boiling is produced by metallizing a reticulated organic foam layer placed in contact with a tube or other heat transfer surface so as to form a reticulated metal surface layer which is integrally bonded to the ... | 09/15/1981 |
| 4288898 | Control rod drive mechanism closure device A device (10) for compressing a closure assembly (82) and an O-ring (80) within a control rod drive mechanism for a nuclear reactor in order to seal same. The device (10) applies a predetermined compressive force to the closure assembly (82) and O-ring (8... | 09/15/1981 |
| 4288899 | Disc brake piston depressing tool A tool is used to move the piston into the cylinder bore of a disc brake caliper housing having a support bracket with an opening disposed opposite the piston. The tool comprises a threaded shaft having a piston engaging member rotatably connected at one ... | 09/15/1981 |
| 4288900 | Puller tool A tool for pulling a speed reduction unit from a drive shaft includes a puller plate that has outwardly extending flanges adapted to be placed in a groove formed in the internal surface of a tubular mounting sleeve of the reduction unit so that, when a th... | 09/15/1981 |
| 4288901 | Method of manufacturing and calibrating a displacement measuring sensor A tensioned helical wire for use as a displacement sensor. The sensor made of high strength piano wire is attached at its ends to two anchors which in turn are attached to or are a part of the object or objects to be tested. In the preferred embodiment th... | 09/15/1981 |
| 4288902 | Method of forming a notched edge lock screw Die insert lock screws are formed for threaded engagement within corresponding threaded holes formed in a retainer having a socket within which a die part insert is positioned, with a portion of each of the screw heads normally overlapping the socket and ... | 09/15/1981 |
| 4288903 | Method for producing stuffing for a spring-type mattress A method for producing stuffing for a spring-type mattress, including the steps of forming grooves on the whole circumference of edge portions of upper and lower mold members, fixing dense and sparse seats on flat surfaces of the upper and lower mold memb... | 09/15/1981 |
| 4288904 | Method and apparatus for the reversal or replacement of hammers in hammer mills A method of mounting and dismounting hammers in a hammer mill in which the hammers are supported in rows on carrier bars, in which each such row of hammers is grasped, lifted and held, by means of a gripping and lifting device, in a position in which the ... | 09/15/1981 |
| 4288905 | Method of fabricating vacuum sizing apparatus A vacuum sizing apparatus is positioned downstream from an extruder along a path followed by a body of thermoplastics material as the body exudes in a heated, deformable state from the extruder. The apparatus includes structure defining an elongate sizing... | 09/15/1981 |
| 4288906 | Pipe jointing A method and apparatus is provided whereby a joint can be made on site between two flanged pipe ends by winding a ductile metal strip over the flanged ends so that lateral portions of the strip are deformed radially inwardly behind the flanges to entrap t... | 09/15/1981 |
| 4288907 | Method of making billets A method of making billets, whereby a composite billet is produced by continuous casting or rolling, which billet is star-shaped in cross section and has at least two ray members disposed symmetrically relative to the central longitudinal axis of the comp... | 09/15/1981 |
| 4288908 | Cable clamping and orienting apparatus A clamp is disclosed for use during connection of insulated wires into an electrical connector. The wires are collectively provided by an electrical cable which must be orientated by the clamp to project perpendicular to the connector when all the wires a... | 09/15/1981 |
| 4288909 | Automatic tool changer for machine tool An automatic tool changer for transferring single tools and/or multiple spindle toolheads between a tool storage magazine and a horizontal spindle of a machine tool. A plurality of single tools and/or toolheads are stored in the tool storage magazine with... | 09/15/1981 |
| 4288910 | Method of manufacturing a semiconductor device A method of manufacturing devices in a semiconductor body 20 of a first conductivity type. An oxygen impervious masking medium 22 is placed on the body 20. Portions of the medium 22 are removed to define field areas 31 and field oxide is formed in the fie... | 09/15/1981 |
| 4288911 | Method for qualifying biased integrated circuits on a wafer level Integrated circuits in dice on a wafer are qualified by providing two sets of conductors connected to each die by fusible elements, biasing the dice using said conductors during exposure to a qualifying environment, testing the fusible elements, removing ... | 09/15/1981 |
| 4288912 | Method of constructing and processing a diode capacitor assembly Wafers of silicon semiconductor material are stacked, bonded and severed to form a plurality of semiconductor diodes. One or more capacitor bodies are physically and electrically joined with these diodes, either by means of the capacitor bodies themselves... | 09/15/1981 |
| 4288913 | Method of forming in situ gelled anode A method for forming a gelled anode in which a powdered anode metal is mixed with means for maintaining a uniform mixture of the powdered metal and a gelling agent, the gelling agent is added, and the mixture is fed into an aqueous electrolyte in the cell... | 09/15/1981 |
| 4288914 | Adjustable mechanism for cutting and clinching electrical component leads A cut-clinch mechanism of compact structure operates on variably spaced leads of components after their insertion to clinch them directionally at an angle selectable between 90° plus or minus 45° to the line connecting the lead-receiving holes of a circ... | 09/15/1981 |
| 4288915 | Commutator puller A commutator puller for electric motors, alternators, generators and the like has teeth means which hold the commutator while a plunger separates the armature from the commutator. Wire windings soldered to contacts on the commutator may be simultaneously ... | 09/15/1981 |
| 4288916 | Method of making mass terminable shielded flat flexible cable A shielded cable comprises a flat electrical insulator having a plurality of parallel spaced-apart conductors. A pluraity of openings extend through the insulator to expose at least one conductor. The shield, which is formed from an electrically conductiv... | 09/15/1981 |