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Assignee: S. Himmelstein and Company


Location: HoffmanEstates, IL
No. of patents: 10

NumberTitleIssue Date
4715214Leak tester
A method and apparatus for quickly determining leakage in pressurized fluid receptors. Pressure determinations are made substantially immediately following the completion of the filling of the item to be tested with the pressurized fluid without the need ...
12/29/1987
4651573Shaft torquemeter
A nonintrusive torquemeter for measuring torque in a shaft having variable reluctance as a result of torque stresses developed in the shaft. The torquemeter includes an annular first coil, a second coil wound about the first coil coaxially of the annular ...
03/24/1987
4616512Torquemeter
A nonintrusive, or noncontact, shaft torquemeter for use in measuring torque transmission through a rotatable shaft. The torquemeter includes an annular torque-sensing coil structure having an annular excitation coil and a pickup coil magnetically coupled...
10/14/1986
4563905Shaft torquemeter
A nonintrusive torquemeter for measuring torque in a shaft having variable reluctance as a result of torque stresses developed in the shaft. The torquemeter includes an annular first coil disposed axially about the shaft, a second coil wound about the fir...
01/14/1986
4555956Torquemeter apparatus
A torquemeter apparatus for use in measuring torque in a drive having a drive member and a driven member. The apparatus includes a signal transfer device and a torque sensing device connected to the signal transfer device. The driven member is journaled t...
12/03/1985
4542643Fluid leak testing method
A method for testing leakage from an element, such as a container. The element to be tested is sealed within an enclosure so as to define a reduced volume space in the enclosure around the container. An increase in the pressure in the surrounding space is...
09/24/1985
4463629Energy efficient drive system
An energy efficient drive system having apparatus for determining the load power, load speed, and necessary adjustment of the drive system to obtain a minimum brake specific energy consumption. The drive system includes structure for adjusting the drive i...
08/07/1984
4412198Rotary transformer
A rotary transformer such as for use in a torque-meter structure arranged to have reduced cross talk between the excitation and signal transformer portions, and to have improved durability. In the illustrated embodiment, the air gaps of the transformer se...
10/25/1983
4381684Energy efficient drive system
An energy efficient drive system having apparatus for determining the load power, load speed, and necessary adjustment of the drive system to obtain a minimum brake specific energy consumption. The drive system includes structure for adjusting the drive i...
05/03/1983
4320463Production control system
A production control system wherein statistical determinations are continuously made on the basis of current manufacturing process data corresponding to preselected parameters of the product being manufactured. The control method includes a determination ...
03/16/1982
 
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