In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6296053 | Controlled breaking of cables in a well casing A pipe string in an oil well has a cable 2 slidingly attached along it. It may be necessary to break the pipe string. Apparatus is provided for controlling the position of a fracture in the cable, as it is desirable to break the cable at about the same po... | 10/02/2001 |
| 5127139 | Stringer clip end effector A stringer clip end effector (21) suitable for use with a computer-controlled (CC) machine tool is disclosed. The stringer clip end effector (21) includes a pair of jaws (45,47) for picking up a clip (23) at a presentation location. After being moved by t... | 07/07/1992 |
| 5085633 | Method of forming suction swab A method of forming a disposable suction swab from an elongated stem having an enlarged, resilient tip at one end. The stem is installed in a longitudinal central channel in the tip, and the assembly is then compressed between a pair of displaceable clamp... | 02/04/1992 |
| 5052431 | Pipeline repair method and apparatus A method is disclosed for cutting an opening in the side of a pipe carrying gas under pressure, providing a bypass through the cut, and terminating the bypass when the pipe has been repaired, along with apparatus for performing steps of the method. To pro... | 10/01/1991 |
| 4671145 | Method and apparatus for the surface machining of substrate plates for magnetic memory plates Before being coated with the magnetizable material, the substrate plates are machined on a precision turning lathe in such a way that the annular surface provided for the storage area is convexly arched on both sides of the plate. For this purpose, the su... | 06/09/1987 |
| 4621956 | Method and apparatus for cutting of flexible foam material An apparatus and process for the continuous cutting of a generally cylindrical rod from soft flexible polymeric foam slabs is disclosed. The apparatus includes a drive for moving a length of the foam slab along a predetermined path, a guide for restrictin... | 11/11/1986 |
| 4580467 | Method of making extrusion die for extruding gears An extrusion die for extruding helical gears or the like is formed with an extrusion passage having a predetermined draft by initially forming a blank with a central bore and frusto conical outer side surface coaxial with the bore. The formed blank is the... | 04/08/1986 |
| 4534723 | Cutting device for the precision trimming of the edge of a centrifugally cast lens A cutting device for the precision trimming of a symmetrical portion of the peripheral edge of a centrifugally cast lens secured within a cavity of a female mold without the need for extensive and complex prior alignment of the cutting tool with the lens.... | 08/13/1985 |
| 4490079 | Method of making a wheel A method for making a wheel and a wheel so made is disclosed in which the tire bead seats in the rim are deformed inwardly, the wheel is held by the deformed bead seats, and the bolting surfaces of the web are machined in fixed relation to the bead seats.... | 12/25/1984 |
| 4351628 | Article handling and transfer apparatus unit An elongated housing 10 has a positioning rod 13 located therein, slidable with respect to the housing. A guide rod 14 slides parallel to the positioning rod. The guide rod and the positioning rod are coupled together by end elements 38, 39. The housing 1... | 09/28/1982 |
| 4288180 | Apparatus for truing bolting surfaces of wheels and the like A machine for truing both the tire bead seats, and the side surfaces of a web of a wheel. The machine has a work supporting station with radially inwardly movable bead seat deforming jaws, and top and bottom machining heads on slides which move toward and... | 09/08/1981 |
| 4287749 | Tapered extrusion die and method of forming the same A sleeve having a tapered outer surface is shrink or interference fitted over the outer surface of a die blank in which is formed a central bore, a larger diameter bore and a transition bore therebetween. The diametrical interference between the sleeve an... | 09/08/1981 |
| 4234275 | Method and apparatus for mounting an engine block boring machine A method and apparatus for positioning a boring machine relative to an engine block or the like has a base plate suitable for arrangement upon a deck surface of the block, the plate being formed with openings above each of the cylindrical bores as well as... | 11/18/1980 |
| 4128928 | Method of forming a curved trailing edge cooling slot A curved slot is formed between an internal cavity of an airfoil and the trailing edge thereof by temporarily deflecting the airfoil trailing edge portion toward the suction side thereof, forming a straight slot in the trailing edge portion while it is in... | 12/12/1978 |
| 4125043 | Device for the centered clamping of annular workpieces for internal machining A device for the centered clamping of an annular workpiece or workpiece stack formed of a plurality of annular workpieces, to hold the same in position for the machining of the inner faces thereof, includes first and second axially aligned clamping rings ... | 11/14/1978 |
| 3987712 | Fixture for cutouts in drain troughs For removable attachment to a sheet metal drain trough or gutter a cutting fixture which has rigid template portion having an opening therethrough defining the size and shape of a hole to be cut through the bottom of the gutter. Pivotable brackets extendi... | 10/26/1976 |