| Patent Number |
Title Of Patent |
Date Issued |
| RE32762 |
Adjustable instrument case |
October 11, 1988 |
| The present invention comprises a plastic case for housing electronic instruments and the like, having a top and bottom panel with two side panels connecting them. The edges of the top and bottom panels are mounted for telescoping movement in the side panels to enable adjustment of the |
| D251370 |
Electronic instrument case |
March 20, 1979 |
|
| D251369 |
Electronic instrument case |
March 20, 1979 |
|
| D251368 |
Electronic instrument case |
March 20, 1979 |
|
| 4733322 |
AC-DC transfer standard overload protection circuit |
March 22, 1988 |
| An overload protection circuit for an AC-DC transfer standard employing a thermoelement comprising a heater element and a temperature sensor. A first differentiator provides an output that is a function of the voltage across the heater element. A second differentiator produces an output |
| 4695793 |
Resistive sensing thermal device for current measurement |
September 22, 1987 |
| A thermal transfer device for use in the measurement of alternating current comprising an evacuated enclosure containing a first electrical conductor heated by the alternating current being measured and a thermal sensor to provide an electrical signal representative of the temperature of |
| 4255706 |
Broadband voltmeter |
March 10, 1981 |
| A voltmeter comprising a diode detector, a square root converter and a linear amplifier each connected to receive the diode detector output signal, a resistance network connected to receive the outputs of the square root converter and the linear amplifier, means for selectively switc |
| 4090632 |
Adjustable instrument case |
May 23, 1978 |
| The present invention comprises a plastic case for housing electronic instruments and the like, having a top and bottom panel with two side panels connecting them. The edges of the top and bottom panels are mounted for telescoping movement in the side panels to enable adjustment of the |
| 4000463 |
Direct-reading decibel meter |
December 28, 1976 |
| A digital display electronic meter apparatus is disclosed which is capable of displaying amplitude ratio measurements directly in decibels over its entire amplitude operating range. |
