Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7107672 | Method of mounting electronic parts on a flexible printed circuit board A plurality of flexible printed circuit boards are held on a transfer carrier, which is formed by a base plate and a resin layer formed on an upper surface of the base plate. Reference pins are positioned at reference pin openings of the carrier base plate and refer... | 09/19/2006 |
| 6988719 | Rollerstand A stand for movably supporting a workpiece is disclosed. The stand includes a base, a support and a plurality of roller assemblies. The support is releasably connected to the base for permitting the height of the stand to be altered. The roller assemblies are mounte... | 01/24/2006 |
| 6874219 | System, method, and apparatus for preventing rotation of a disk clamp while being assembled to the hub of a spindle motor in a hard disk drive and fastener centering features A disk clamp for securing disks to the hub of a spindle motor in a disk drive has symmetrically spaced apart countersunk apertures in the top surface of the disk clamp. The apertures enable the disk clamp to maintain a proper orientation before the fasteners are att... | 04/05/2005 |
| 6681897 | Apparatus for supporting automotive tires An apparatus for supporting automotive tires having a hanger pin adapted to fit through the mount hole of a vehicle wheel. The apparatus is intended to be installed on an automotive hoist at a height approximately the same as that of a tire of a vehicle d... | 01/27/2004 |
| 6668894 | Film layer separation device for multi-layer disks A film layer separation device for multilayer disks is disclosed. With the help of a stamper made of magnetic materials, the film layer separation is achieved through the attractive force imposed on the stamper by electromagnetic tearing. The device conta... | 12/30/2003 |
| 6604610 | Apparatus for supporting automotive tires An apparatus for supporting automotive tires is provided having a hanger pin adapted to fit through the mount hole of a vehicle wheel. The apparatus is intended to be installed on an automotive hoist at a height approximately the same as that of a tire of... | 08/12/2003 |
| 6527863 | Support device for a stent and a method of using the same to coat a stent A support device for a stent and a method of coating a stent using the device are provided.... | 03/04/2003 |
| 6279886 | Power clamps A power clamp includes a body member (2), an arm member (14) connected to the body member by means of a pivot joint (16) to allow pivoting movement of the arm member between an open position and a closed position, an actuator (10), a first drive mechanism... | 08/28/2001 |
| 6105950 | Retainer A retainer capable of absorbing a positional difference between the moving and placing coordinates set in a moving and placing machine and the axis of a work, thus restraining the work from being defectively moved and placed. The retainer includes: a pill... | 08/22/2000 |
| 6098272 | System for maintaining concentricity of a combination of a top and bottom substrate during the assembly of a bonded storage disk A system and method maintain concentricity of a center hole of a top substrate and of a bottom substrate in a bonded storage disk manufacturing system. A first device holds a coaxial arrangement of a top and bottom substrate around a first arbor. A second... | 08/08/2000 |
| 6086976 | Semiconductor wafer, handling apparatus, and method A semiconductor wafer comprising a single crystalline lattice suitable for use in the manufacture of integrated circuits, namely computer chips and dies, wherein a diameter of the wafer is greater than approximately 150 millimeters and wherein the wafer i... | 07/11/2000 |
| 6047717 | Mandrel device and method for hard disks An improved mandrel device (100) and method. The mandrel device (100) has an elongated member (117) for supporting a plurality of hard disks, for example. The elongated member (117) includes an inner member (107) that is defined between a pair of outer me... | 04/11/2000 |
| 5954908 | Developing storage disc boss A developing storage disc boss adapted to engage a recess in a rotatable holding table for developing a storage disc including two discoid resin substrates with adhesive contained in a space therebetween. The developing storage disc boss includes a barrel... | 09/21/1999 |
| 5952014 | Apparatus for texturing magnetic data recording disc surfaces An apparatus for forming a textured zone in a predetermined surface area on a magnetic data recording disc, which is capable of precisely controlling the position and range of the texturing zone. Bumps 4 are formed on a CSS zone on the inner peripheral si... | 09/14/1999 |
| 5819412 | Jig system for the manufacture of composite joists and method of manufacturing composite joists using jigs A jig system for aligning wooden chords and metal web members in the manufacture of joists, the system includes an assembly surface having a longitudinally extending track therein, and a plurality of jigs positionable in the track. The jigs have upwardly ... | 10/13/1998 |
| 5645117 | Tompkins turner A turner holds a wood blank while positioning it adjacent a cutting bit of a router to cut the blank into a shaped cylindrical object. The turner includes a mandrel and two mandrel wheels attachable to ends of the mandrel, which each have finger gripping ... | 07/08/1997 |
| 5637200 | Compact disk locking apparatus Apparatus for locking a workpiece, such as a compact disc, in a vacuum chamber includes a locking mechanism, movable between a locked position and an unlocked position, and a sealed bellows assembly that is coupled to the locking mechanism. The locking me... | 06/10/1997 |
| 5383652 | Engine mounting and transportation apparatus An engine mounting apparatus, particularly suitable for a large aircraft engine, has a front member able to receive and support a front engine portion separated from the rear engine portion which can be loaded on to and supported by a transportable stand.... | 01/24/1995 |
| 5292041 | Adjustable elastic band inspecting apparatus An adjustable elastic band inspecting apparatus comprising a supporting frame attached to a bench by a C-clamp, and an inspection holder connected to the support frame by a pivoting axle that enables the height and inclination of the inspection holder to ... | 03/08/1994 |
| 4940217 | Lead frame conveying apparatus An improved lead frame conveying apparatus for conveying a lead frame to a bonding position has two pins each with a tapered end which is provided for being inserted into a positioning hole in a lead frame. The tapered end has an upper portion the diamete... | 07/10/1990 |
| 4926538 | Universal nest for a connector assembly tool A universal nest (1)) for accommodating a separate one of a pair of ribbon connectors (12 and 12') of heights h1 and h2, respectively, comprises an elongated beam (26) along which a first block (28) of a height h1 is slida... | 05/22/1990 |
| 4852437 | Method and apparatus for locating and clamping a workpiece, such as a piston, prior to rotating same in a machining operation A method and apparatus for locating and clamping a piston (10, 110) between headstock and tailstock assemblies (18, 118 and 20, 120) before rotating same about a rotary axis (22, 122) in a machining operation is characterized by an equalizing mechanism or... | 08/01/1989 |
| 4852865 | Holding device on a punch press The invention relates to a holding device for the stack of paper, cardboard or similar sheet-form punching material on a punch press, with a centering pin yielding elastically at least in zones under the thrust of the punching material for engagement into... | 08/01/1989 |
| 4809922 | Clamping head for winding cores The clamping head features a cylindrical section engaging the winding core with a threading which digs in inside the core and a subsequent collar forming a stop for the end face of the core. To obtain a form fit which spares the core, the threading is fas... | 03/07/1989 |
| 4747607 | Lobed chuck for saw regrinding A chuck for a circular saw includes a frusto-conical plate having a plurality of frusto-conical lobes which snugly engage scallops forming an outer diameter of a mounting aperture in a saw blade adapted to be mounted on a splined arbor. With the saw mount... | 05/31/1988 |
| 4732060 | Clamp for bicycle crank bearing wrench A clamp to secure the location of a spanner wrench on the bearing cup of a bicycle crank bearing during the installation or removal of the bearing cup from the bicycle frame crank housing.... | 03/22/1988 |
| 4708041 | Lathe mounting apparatus A lathe-mounting apparatus defining a cylindrical core having an enlarged cylindrical termination at one end thereof and a separate slidably-mounted cone at the opposite end. The cone is adapted to slide onto the smaller end of the cylindrical core, the s... | 11/24/1987 |
| 4684310 | Wheel manipulator A wheel manipulator for engaging and retaining the hub of a wheel thereto, having a base frame with a vertical column, a carriage slidably mounted on the column and adapted to be vertically adjustably positioned thereon, a turret rotatably mounted on the ... | 08/04/1987 |
| 4646419 | Method for engaging a substrate An apparatus (10) for engaging a printed circuit board (12) positioned in rough alignment therewith comprises an housing (14) having a bore (16) which is partially tapered (20). Loosely mounted within the bore is a sleeve (24) having a tapered portion (30... | 03/03/1987 |
| 4638985 | Sheet holding apparatus In a sheet holding apparatus having a pair of parallelly disposed rails (17, 18) for sliding a sheet, such as a printed board, and plural guide holders (38, 42) having plural positioning guide pin (40, 44) to be inserted in holes of the printed wiring boa... | 01/27/1987 |
| 4632373 | Fixture A fixture for use in conjunction with welding workpieces by vibration welding including a pin adapted to assume two states, namely a first state in which the pin is movable to seek an aperture in the workpiece and is free to enter such aperture, and a sec... | 12/30/1986 |
| 4624043 | Quick release tool holder for robots A releasable tool holder (75) for quickly interchanging tools usable by a conventional robot (50) having one or more articulatable arms (60, 65, 70). The tool holder (75) is mounted to an arm (70) of the robot (50) and is provided with a plurality of vari... | 11/25/1986 |
| 4545570 | Gimbal fixture and assembly method A highly accurate rapid gimbal assembly method utilizes two fixtures for establishing the critical gimbal assembly parameters of yield and axis of intersection and an adhesive for bonding each mating surface of the gimbal assembly for holding the componen... | 10/08/1985 |
| 4520542 | Hand operable tool used in installing piston assemblies into an engine block A hand operable tool (10) used in installing pistons and piston rod assemblies (PR) into an engine block (EB) includes magnets (170, 172,232) for securing the device to the engine block and engine dowel pin receiving holes (190,226) for receiving cylinder... | 06/04/1985 |
| 4487110 | Clamping element A clamping element comprises a single-acting cylinder and a piston with strong spring return which can be cancelled out by introduction of a pressure medium into the pressure chamber of the cylinder. The spring return is brought about, at least mainly, by... | 12/11/1984 |
| 4147405 | Apparatus for aligning articles Axial alignment of a pair of articles such as the ends of a pair of optical components is effected by an alignment device, which serves also as a connector. The alignment device employs a pair of sleeves, for holding the pair of articles, the sleeves bein... | 04/03/1979 |
| 4016639 | Apparatus and method for stripping windings from a stator Apparatus for stripping from a dynamoelectric machine stator a plurality of windings thereof with one of a pair of opposite generally annular groupings of end turns severed therefrom. The apparatus has means movable between a mounting position and a displ... | 04/12/1977 |
| 3948124 | Apparatus and method for severing stator end turns Apparatus for severing from a plurality of windings in a dynamoelectric machine stator a generally annular grouping of winding end turns extending from an end face of the stator. The apparatus has means movable generally in a predetermined plane for sever... | 04/06/1976 |
