Daniel A Wisner, Age 60Lexington, MA

Daniel Wisner Phones & Addresses

Lexington, MA

Ambler, PA

1515 Park Rd, Ann Arbor, MI 48104 (734) 741-4984

Detroit, MI

Wilmington, DE

East Lyme, CT

Menlo Park, CA

33 Hill St, Lexington, MA 02421

Show more

Work

Position: Sales Occupations

Education

Degree: High school graduate or higher

Mentions for Daniel A Wisner

Resumes

Resumes

Daniel Wisner Photo 1

Daniel Wisner

Location:
United States
Daniel Wisner Photo 2

Daniel Wisner

Location:
United States

Publications

Us Patents

High Efficiency Switching Regulator

US Patent:
3978393, Aug 31, 1976
Filed:
Apr 21, 1975
Appl. No.:
5/569999
Inventors:
Daniel A. Wisner - Milan MI
Andrew S. Mihalik - Northville MI
Assignee:
Burroughs Corporation - Detroit MI
International Classification:
G05F 150
US Classification:
323 17
Abstract:
An improved switching regulator converts an unregulated DC voltage into a regulated DC output voltage and maintains regulation over the entire range from maximum load current through zero load current. The improved regulator employs a plurality of series switching paths connected between the unregulated DC input and a summing node at a filter capacitor output. Each series switching path includes a power switching element, a catch diode and a series inductor. The other end of the summing node is connected through a current limiting circuit to the DC regulated output, and at least a portion of the voltage at the summing node is fed to a voltage error amplifier and used to control the duty cycle of the series switching elements. Feedback from the current limiting circuit can override the voltage error amplifier control should the maximum current limit be exceeded. The switching control means employs pulse-width modulation for adjusting the duty cycle of the series switching elements, and the technique of pulse-width modulation employed in the present invention is of the constant frequency, variable "ON" time variety, as known in the art.

Wide-Range Digital Reluctance Tachometer

US Patent:
3970935, Jul 20, 1976
Filed:
Feb 18, 1975
Appl. No.:
5/550596
Inventors:
Jack Beery - Farmington MI
Daniel A. Wisner - Milan MI
Assignee:
Burroughs Corporation - Detroit MI
International Classification:
G01P 348
H03K 1320
US Classification:
324166
Abstract:
A digital tachometer for generating electrical pulses at a rate indicative of the speed of rotation of a shaft-like member. A first toothed disk having N teeth is affixed to the shaft and a housing having a second set of M teeth is fixed with respect to the shaft and positioned around the toothed disk. As the shaft rotates, individual ones of the teeth on the outer periphery of the disk which is affixed to the rotating shaft alternatively pass into and out of close proximity to individual ones of the teeth of the outer housing resulting in periodic increases and decreases in the reluctance of the system. A sensing coil is positioned with respect to the housing so as to generate an electrical current which varies as the reluctance changes from one polarity to another as the shaft rotates. At each point of maximum reluctance and at each point of minimum reluctance, the polarity of the reluctance and correspondingly the slope of the current waveform changes and these changes are detected by a slope-change detector circuit which generates a digital signal in response thereto. The rate of generation of these digital signals is therefore indicative of the speed of rotation of the shaft and the speed of rotation can be sensed over a very wide range from very slow rotational speeds to very high speeds.

High Efficiency Power Supply Having A Reactive Buck Automatic D.c. Voltage Regulator

US Patent:
4001665, Jan 4, 1977
Filed:
Apr 21, 1975
Appl. No.:
5/569673
Inventors:
Daniel A. Wisner - Milan MI
Flavius A. Mathamel - Allen Park MI
Truman T. Schmalzriedt - Westland MI
Assignee:
Burroughs Corporation - Detroit MI
International Classification:
G05F 164
H02P 1304
US Classification:
321 18
Abstract:
D. C. power supply having a reactive buck automatic D. C. voltage regulator which directly controls the rectified D. C. output of a loosely coupled transformer thereby providing load regulation from an unregulated alternating current source. The load current passes through the secondary winding of an auxiliary buck transformer and is stepped down to a much lower value in the primary winding of the auxiliary buck transformer. The primary winding of the auxiliary buck transformer is coupled to an isolated winding on the core of a ferroresonant C. V. T. transformer which receives the unregulated alternating current input signal, and the coupling between the isolated winding and the primary winding of the buck transformer effects a bilateral energy transfer between the two transformers which effects a real time reactive compensation which regulates the D. C. output of the power supply for changes in the input voltage and in the load while conserving the energy which would normally be wasted in achieving regulation by transferring it back to the resonant circuit via the bilateral energy transfer between the two transformers. The control system is set up so that the auxiliary buck transformer is normally bucking under all line and load conditions when the frequency is precisely at the resonant frequency of the saturable inductor and capacitor.

System For Predicting Or Detecting A Fault In A Solenoid Utilization System

US Patent:
3988664, Oct 26, 1976
Filed:
Feb 18, 1975
Appl. No.:
5/550595
Inventors:
Jack Beery - Farmington MI
Daniel A. Wisner - Milan MI
Assignee:
Burroughs Corporation - Detroit MI
International Classification:
G01R 3102
US Classification:
324 28R
Abstract:
A system for detecting the occurrence of a fault in a solenoid utilization system when the fault is manifested by the solenoid armature or plunger being seated either too early or too late. A predetermined time interval is established such that the seating of the solenoid armature or plunger during this time interval is regarded as acceptable. A cusp detector circuit detects the point in time at which the solenoid plunger or armature seats and if it is within this predetermined time interval, it is recognized as acceptable, but if it is detected either too early or too late, an indication is generated that a fault exists and the occurrence and probable nature of the fault may be flagged. A test mode is provided whereby the predetermined established time interval can be considerably narrowed so that maintenance can be performed on the system so as to insure that the solenoid armature or plunger seats at exactly the proper time. As the predetermined time interval is narrowed, the acceptable range is narrowed and if the solenoid armature or plunger is found to seat a little too early or too late, it can be taken as an indication that a future failure is to be anticipated unless maintenance is performed.

Voltage Regulator

US Patent:
4213082, Jul 15, 1980
Filed:
Oct 27, 1978
Appl. No.:
5/955253
Inventors:
Daniel A. Wisner - Milan MI
Truman T. Schmalzriedt - Farmington Hills MI
Assignee:
Burroughs Corporation - Detroit MI
International Classification:
G05F 156
US Classification:
323 17
Abstract:
A voltage regulator for converting an unregulated input voltage into a regulated D. C. voltage. The voltage regulator includes a driver transformer which periodically receives energizing current from a voltage source through a transistor switch. A switching regulator controller regulates the conduction time of the transistor so as to control the amount of energizing current supplied to the driver transformer. The driver transformer secondary windings drive the base of output transistors which, when conducting, connect the primary windings of an output transformer to the voltage supply. A capacitor is connected in parallel with the primary winding of the driver transformer so as to short circuit the primary winding of the drive transformer when the driver transistor is turned off. The current flow in the secondary of the driver transistor causes removal of the stored base charge from the output transistors which decreases the turn off time of the output transistors. The primary windings of the output transformer are connected in series with first and second capacitors connected between the common junction of the primary windings and the voltage supply to effectively create a virtual ground at the common junction.

Solenoid Control System With Cusp Detector

US Patent:
3946285, Mar 23, 1976
Filed:
Feb 18, 1975
Appl. No.:
5/550597
Inventors:
Jack Beery - Farmington MI
Daniel A. Wisner - Milan MI
Assignee:
Burroughs Corporation - Detroit MI
International Classification:
H01F 718
US Classification:
317123
Abstract:
A solenoid control system wherein the duration of actuation of a solenoid is a function of the workload imposed thereon so that the current to the solenoid is always turned off as soon as the solenoid plunger or armature is seated. Solenoid control logic responds to an external demand for the energization of the solenoid and enables a solenoid drive circuit which supplies current to the solenoid coil. The level of current builds in the solenoid coil until the solenoid plunger or armature is pulled in. The current continues to build as the solenoid plunger or armature is drawn in until that point at which the reluctance of the magnetic circuit is changing faster than the current in the solenoid coil is able to build. From this point until the solenoid plunger is seated, the current drops. As soon as seating has occurred, the reluctance ceases to change and the current once again begins to build in the solenoid coil.

Document Overlap-Detecting Apparatus And Process

US Patent:
4160546, Jul 10, 1979
Filed:
Dec 23, 1977
Appl. No.:
5/873082
Inventors:
Andrew H. McMillan - Wayne MI
Daniel A. Wisner - Milan MI
Assignee:
Burroughs Corporation - Detroit MI
International Classification:
B65H 712
US Classification:
271263
Abstract:
An apparatus and process for detecting overlapped documents in a document processing apparatus by detecting the translucency of the documents. The disclosed apparatus includes a transport path for guiding documents and drive wheels for moving the documents along the transport path. Four LED (light source) phototransistor (light detector) pairs are located across the transport path. One LED-phototransistor pair is used together with electronics to detect when a document is present. Two LED-phototransistor pairs are used together with edge detection electronics to detect sudden significant changes in document translucency from the immediately previous translucency of the same document as the documents pass thereby. The other LED phototransistor pair is used together with level detect electronics to sample and hold the translucency level at the beginning of each document, and then to detect when the present translucency level of the document exceeds predetermined guardbands on either side of the translucency level at the beginning of the document as the documents pass thereby. Overlap indicating electronics indicates overlapped documents when the outputs of the two edge detects and the level detect are continuously coincident for 1 millisecond, and then the output of the level detect remains continuously present for an additional 5.

Return And Position Control For A Dc Servo System

US Patent:
4110675, Aug 29, 1978
Filed:
Jun 8, 1977
Appl. No.:
5/804552
Inventors:
Daniel A. Wisner - Milan MI
Assignee:
Burroughs Corporation - Detroit MI
International Classification:
G05B 101
US Classification:
318606
Abstract:
An apparatus is provided for controllably moving a load in a return mode back to a first or home position by a motor driven shaft, which shaft moves the load toward a second position in a forward mode to track a moving object field. An apertured fan-shaped timing disk or element is secured to the rotating shaft to move therewith. A position feedback sensor senses the angular displacement of the shaft by generating a feedback signal upon optoelectronically sensing an aperture in both the forward and return modes. An optoelectronic sensor detects the passage of the moving object field to provide a return signal after the object field has passed a predetermined position. A motor and its amplifier controllably move the load back to the first position in the return mode in response to the return signal. The inertia of the system causes the shaft to rotate to move the load to the second position in the return mode after responding to the return signal. A return home circuit is responsive to the difference in the number of feedback signals in the forward mode and the up-to-date or current number of feedback signals in the return mode to provide an accelerating bias signal and then a decelerating bias signal to the amplifier to accelerate and decelerate the load respectively as the load moves back towards the first position.

All data offered is derived from public sources. We do not verify or evaluate each piece of data, and makes no warranties or guarantees about any of the information offered. We do not possess or have access to secure or private financial information. People Background Check is not a credit reporting agency and does not offer consumer reports. None of the information offered by People Background Check is to be considered for purposes of determining any entity or person's eligibility for credit, insurance, employment, housing, or for any other purposes covered under the FCRA.