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| Number | Title | Issue Date |
| 7043852 | Measuring instrument A measuring instrument that includes a tube 21 having a female thread 211 and a spindle 3 having a lead screw 31 screwing with the female thread 211 and capable of being advanced and retracted in an axial direction along with rotat... | 05/16/2006 |
| 7013576 | Measuring device using multi-start threaded spindle Provided is a measuring device 1 for measuring the size of an object comprising a body 2, and a spindle 3 which is screwed into the body 2 and axially advances and retracts by screwing with respect to the body 2, the measurement be... | 03/21/2006 |
| 5414646 | Digital optical micrometer A digital optical micrometer for mounting on an optical instrument and having an optical flat plano-parallel window which is connected to a micrometer drum. The drum can pivot or incline the optical plano-parallel window to cause displacement of a line of... | 05/09/1995 |
| 5288292 | Keratome with miniature differential micrometer A keratome includes a miniature differential micrometer having a barrel, a middle sleeve, and a inner sleeve connected by a threaded shaft having threads of two different pitches. One end of each of the middle sleeve and inner sleeve is drilled and tapped... | 02/22/1994 |
| 4787148 | Nanometric drive apparatus A nanometric drive apparatus providing superimposed coarse and fine adjustment for producing axially-directed linear displacement of a single linear displacement element. Linear displacement in the nanometric range is achieved. In the preferred embodiment... | 11/29/1988 |
| 4174575 | Measuring instrument A measuring instrument with two feeds for its spindle. A first sleeve is keyed to a second sleeve so the sleeves can move axially relative to each other but cannot rotate relative to each other. A spindle is threaded into the second sleeve and moves axial... | 11/20/1979 |
| 3994563 | Reflecting stereoscope with measuring device for the evaluation of stereophotographs A reflecting stereoscope has picture holders and oculars for the observation of pictures held by the picture holders, and an optical train between the picture holders and the oculars. Picture marks and measuring markers carrying adjustable measuring marks... | 11/30/1976 |
| 3971137 | System for millesimal measure A system of millesimal linear measure characterized by the simultaneous existence of two micrometric advances: one normal micrometric advance and another supplemental one with as small a pitch as desired. A double entry numeric counter means comprising au... | 07/27/1976 |
