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| Number | Title | Issue Date |
| 4211510 | Adjustable boring head An adjustable boring tool including an axial shank and a socket for mounting a cylindrical boring bar with an offset axis clamped in adjustable position through transverse and longitudinally slotted segments on one side of the socket together with a trans... | 07/08/1980 |
| 4207567 | Broken, chipped and worn tool detector A method and apparatus for monitoring tool wear and breakage as a function of the electrical power dissipated by a machine tool which is carrying out subsequent cuts for removing stock. Optimal tool life is achieved by monitoring tool wear and breakage as... | 06/10/1980 |
| 4205386 | Electrocardiographic and blood pressure waveform simulator device Apparatus for simulating waveforms utilized to check the operability of a remote display device. The apparatus includes a waveform generator for providing electrical signals representing simulated waveforms. An interface circuit for coupling the waveforms... | 05/27/1980 |
| 4204261 | Complex analog signal generator An electronic circuit for generating complex time-varying analog signal waveforms such as electrocardiogram and blood pressure transducer signals employs analog signal shaping circuits coupled to a summing network to shape the sequential output stage sign... | 05/20/1980 |
| 4197650 | Compact column gage A part sizing system in which the upper and lower tolerance limits are illuminated on the same bar graph display. Electrical representations of the upper and lower tolerance limits are alternately coupled to the bar graph display so as to superimpose visu... | 04/15/1980 |
| 4194862 | Indexable insert drill An indexable insert drill employing a plurality of inserts located substantially in a single radial plane characterized by a round innermost insert having its arcuate cutting edge extending across the axial center line of the drill. One or more supplement... | 03/25/1980 |
| 4194860 | Face milling cutter A face milling cutter having indexable inserts located in corner pockets at the periphery of the cutting face of the cutter body angularly positioned to provide a cutting edge extending from a point of maximum cutting depth in a direction progressively ou... | 03/25/1980 |
| 4193039 | Automatic zeroing system An electronic apparatus for automatically zeroing or nulling an analog offset voltage by using multiple bit successive approximation to generate an analog zeroing voltage of equal magnitude and opposite polarity to that of the offset voltage, and then sum... | 03/11/1980 |
| 4188162 | Indexable insert drill An indexable insert drill with a parallelogram shaped insert positioned at a negative axial lead, the insert having a slanted recess which provides an angularly oriented cutting edge extending from a face cutting corner through or slightly under and subst... | 02/12/1980 |
| 4187646 | Apparatus for grinding Method and apparatus for controlling the operation of a grinding machine of the type comprising a circular grinding wheel adapted to rotate about its axis and a spindle adapted to hold a workpiece at a position radially spaced from the grinding wheel. The... | 02/12/1980 |
| 4181958 | Multiple probe gage system A multiple probe gage system wherein the analog output signal of a plurality of probes is successively sampled, digitized and stored. The stored information is then digitally processed by a microprocessor to produce a digital signal which is a function of... | 01/01/1980 |
| 4158808 | Load source simulator A high power source load simulator presents itself to a power meter as a conventional electrical load, but in fact is highly portable and dissipates relatively little power and heat. A current source generates a selectively variable current signal which i... | 06/19/1979 |
| 4124328 | Indexable insert drill An indexable insert drill employing a pair of radially opposed inserts having either positive or negative axial lead cutting edges extending in the same cone of revolution. One of the inserts has a radially inner arcuate corner intersecting and extending ... | 11/07/1978 |
| 4124326 | Cutting insert with raised cutting edge A cutting insert of hard wear resistant material such as sintered tungsten carbide having a raised negative rake cutting land forming an obtuse cutting edge angle with side walls extending normal to the cutting face. A gradual sloping surface from the inn... | 11/07/1978 |
| 4115923 | Electronic column gage A sizing gage for use with an LVDT probe for producing an output signal representing the deviation of part dimension from a nominally ideal dimension, and a columnar display means comprising vertically arranged light emitting diodes for indicating the deg... | 09/26/1978 |
| 4096436 | Power monitor A power monitor including a high power shunt connected in series with an electrical load to develop a signal proportional to current which is then modulated. A second signal proportional to the voltage across the load is developed by a voltage divider net... | 06/20/1978 |
| 4093392 | Milling cutter An indexable insert milling cutter having multiple round inserts located in staggered individual isolated pockets formed in the annular periphery of the cutter body. Each insert is trapped in its pocket with only a small fraction of the cutting edge proje... | 06/06/1978 |
| 4066380 | Combined boring and threading tool The invention relates to a threading tool for internal threads with a cutter holder which is displaceably mounted on a cutter holder carrier shaft co-axial to the main axis of the rotatable tool which coincides with the thread axis during the cutting proc... | 01/03/1978 |
| 4040315 | Machining cross-feed head counterweight system A rotary machining head having a pair of dynamically balanced cross-feed slides with tool blocks mounted thereon for radial cross-feed machining each, provided with a counterweight including a lost motion connection and a stop limiting the counterweight's... | 08/09/1977 |
| 4038756 | Electronic column gage A sizing gage for use with an LVDT probe for producing an output signal representing the deviation of part dimension from a nominally ideal dimension, and a columnar display means comprising vertically arranged light emitting diodes for indicating the deg... | 08/02/1977 |
