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| Number | Title | Issue Date |
| 4258928 | Precision positioning device A precision positioning device with a pair of relatively movable plates defining a carriage for four relatively movable guides. A centering port having a rectangular profile is formed by the guides which are constrained for mutually coating movement on th... | 03/31/1981 |
| 4241546 | Holding device for cup-shaped glassware articles in a glass processing machine The invention relates to a holding device for cup-shaped glassware articles in a glass processing machine, especially in a bursting and grinding machine, wherein the cup is placed into the holding device prior to commencement of the processing operation. ... | 12/30/1980 |
| 4221286 | Pail bail holder Apparatus for restricting the movement of a pail bail facilities pail finishing processes, such as labeling. A blocking element for engagement with the pail bail intersects the locus of movement of the bail, so that its movement relative to the pail is re... | 09/09/1980 |
| 4194324 | Semiconductor wafer polishing machine and wafer carrier therefor A carrier for semiconductor wafers to be polished is described, as well as mounting structure for securing the carrier within a polishing machine. The carrier is a relatively thick metal plate having on one of its faces, a sheet of material to which wafer... | 03/25/1980 |
| 4183545 | Rotary vacuum-chuck using no rotary union A vacuum-chuck having no expensive, complex rotary unions in the vacuum lines maintains its vacuum by maintaining the surfaces which rotate with respect to each other in intimate contact with a glabrous, self-lubricating element. The vacuum is communicate... | 01/15/1980 |
| 4174847 | Precision centering device A precision centering device with a pair of relatively movable plates forming a guideway for four relatively movable guides. A tapered centering port having a rectangular profile is formed by the guides which are constrained for mutual coacting movement b... | 11/20/1979 |
| 4164099 | Contact lens tool A contact lens holder or tool for grinding or polishing, including a handle, a tubular receptacle open at its outer end and having a shaft protruding from its inner end which is rotatably mounted in the handle, a deformable fluid chamber closely fitted in... | 08/14/1979 |
| 4146082 | Vacuum chucks A casting head and clamp arrangement for vacuum aspiration casting of metal rods in glass tubes is provided having a casting head with a generally vertical vacuum passage, a removable vacuum chuck in the lower end of said vacuum passage adapted to receive... | 03/27/1979 |
| 4066039 | Adjustable securing base An adjustable securing base has a surface radius of curvature which can be adjusted to support an adjacent part on the base surface. The securing base comprises a flexible thin plate with an adjustment mechanism connected on opposite edges of the base for... | 01/03/1978 |
| 4037830 | Wafer handler Disclosed is a chuck or handler for carrying thin, substantially planar workpieces intermediate process stations but while maintaining a clean air environment. The chuck includes a substantially planar surface having a workpiece receiving area thereon and... | 07/26/1977 |
| 4007942 | Device for the uptake of cup-shaped parts of gelatin capsules This disclosure relates to a device for the uptake of capsule parts. The device may include a female member having an internal cavity defined by a contact surface which engages the outer surface of the capsule, or a male member having an outer contact sur... | 02/15/1977 |
| 4006909 | Semiconductor wafer chuck with built-in standoff for contactless photolithography A semiconductor wafer vacuum chuck used as part of a photographic wafer-alignment machine for performing contactless photolithography has integral spacer means disposed on a substantially planar surface thereof for mechanically maintaining a fixed distanc... | 02/08/1977 |
| 3965381 | Electric motor housing with interior shield against liquids A construction for an electric motor, which motor is adapted to be installed and operated in a generally vertical mode. The rotor shaft of the motor extends upward through the top wall (or cap) of the stator housing. With this vertical orientation, howeve... | 06/22/1976 |
| 3955163 | Method of positioning a semiconductor wafer for contact printing A non-planar semiconductor wafer chuck having a plurality of outwardly extending channels in the chuck face and a plurality of vacuum/pressure ports extending through the chuck and communicating with the face thereof. When a semiconductor wafer is positio... | 05/04/1976 |
