John Waldron

2017023, Aug 17, 2017

Feb 13, 2017

15/431580

- Waltham MA, US
Jason TARGOFF - Cambridge MA, US
John WALDRON - Boston MA, US
Michael PETERSON - Boston MA, US

F01P 7/12
F02B 63/04
F01P 1/06

An automated system for managing temperature and reducing crankcase oil dilution in an internal combustion engine. The system includes a rotatable shutter plate having an open portion, a closed portion and a peripheral rim, the peripheral rim having a frictional surface thereon; a motor having a rotatable shaft having a pinion affixed at one end thereof for engagement with the frictional surface of the peripheral rim of the rotatable shutter plate; and a temperature sensor for monitoring a temperature indicative of engine warm-up and sending a signal to a controller; wherein the rotatable shutter plate is structured and arranged to at least partially occlude an air inlet to or outlet from the internal combustion engine when rotated in response to a signal received from the controller. A method of reducing crankcase oil dilution and managing temperature in a spark-ignited engine operating on middle-distillate fuel and a portable engine or engine-generator combination having multi-fuel capability are also provided.

2017031, Oct 26, 2017

Apr 26, 2016

15/139031

- Clifton Park NY, US
John E. Waldron - Clifton Park NY, US

H02M 1/34
H01L 29/872
H01L 29/808
H02M 7/217
H01L 29/16

A circuit for transferring parasitic energy to an external load. The circuit includes a first array of semiconductor switches connected in parallel with one another, a second array of semiconductor switches connected in parallel with one another, an external load connected in parallel with the second array of semiconductor switches, an extended-time saturable reactor (ETSR), and a voltage snubber capacitor. The second array of semiconductor switches is connected in series with the first array of semiconductor switches. The ETSR is connected in series with the second array of semiconductor switches. The voltage snubber capacitor is connected in parallel with the second array of semiconductor switches and the ETSR. The circuit may further include an energy return circuit including an isolation transformer for returning energy in the voltage snubber capacitor to the external load. The external load can include a capacitive load or an external power supply.

8237412, Aug 7, 2012

Jul 14, 2006

11/487071

Thomas Finis Johnson - Schaumburg IL, US
John S. Whiting - Arlington Heights IL, US
John F. Waldron - Elgin IL, US

Schumacher Electric Corporation - Mt. Prospect IL

H02J 7/04
H02J 7/16

320139, 320138, 320140, 320141, 320142, 320145

A battery charger is disclosed for use with various batteries, such as automotive and marine-type batteries. In accordance with an aspect of the invention, the charging current is alternated between non-zero DC charging current levels. By alternating the charging current between non-zero DC charging levels, the battery can be charged to a higher capacity (i. e. , ampere hours) faster, thus reducing the charging time and at the same time allow the rating of the battery charger to be increased. In accordance with another important aspect of the invention, the technique for alternating the charging current can be implemented in both linear and switched-mode battery chargers.

2020017, Jun 4, 2020

Nov 30, 2018

16/206821

- Armonk NY, US
Warren BOLDRIN - Montgomery NY, US
John WALDRON - Highland NY, US
Sreekanth RAMAKRISHNAN - San Jose CA, US
Anthony TIANO - Kingston NY, US

G06Q 10/06
G06Q 10/04

Disclosed is a computer-implemented method of employee/resource allocation across an enterprise. The method includes receiving, by a data processing system, a workload matrix, the workload matrix including job types and a level of demand for each job type; receiving, by the data processing system, an employee matrix, wherein the employee matrix comprises a plurality of employees and a plurality of characteristics associated with each of the plurality of employees; generating, by the data processing system, a skills matrix for the enterprise based on the plurality of characteristics associated with each of the plurality of employees; cognitively generating, by the data processing system, an optimization model; responsive to performing an iteration of the optimization model, assigning, by the data processing system, the plurality of employees to the plurality of job types based on the iteration, resulting in a report; and implementing the report in the enterprise.

2022035, Nov 3, 2022

Apr 30, 2021

17/246317

- Charlotte NC, US
John F. WALDRON - Charlotte NC, US

G06T 7/00
G08B 5/22
G06T 7/70
G07C 9/20
G06K 7/14

Systems, methods, and computer program products for access-related safety determinations are provided. An example method includes receiving first image data of a field of view of a first imaging device that includes an access location and determining an access condition of the access location based upon the first image data. In response to an attempt to access the access location by a first user, the method includes receiving second image data of a field of view of a second imaging device that includes the first user upon which to perform a safety determination. The method further includes generating a safety parameter for the first user that is indicative of a presence and a positioning of a safety device of the first user, comparing the safety parameter with a validation threshold, and generating an alert signal in an instance in which the safety parameter fails to satisfy the validation threshold.

4525253, Jun 25, 1985

Jun 28, 1984

6/625718

Daniel F. Hayes - Lake Worth FL
Robert G. Sias - Lake Worth FL
Lloyd Chesney - West Palm Beach FL
John W. Waldron - Highland Beach FL

MED Products, Inc. - Archer FL

C02F 146
C25B 1104

204149

A method and apparatus for purifying water includes a pump and purification cell, the cell having two electrodes, at least one of which electrodes is approximately 92 percent copper, 3 percent silver and 5 percent nickel, by weight. An electrical potential is developed between the electrodes and caused to alternate in polarity to prevent plating. Copper and silver ions are released into the water at adjustable rate, where they cooperatively destroy bacteria, algae, and the like.

2012030, Dec 6, 2012

Jun 29, 2012

13/537925

Thomas Finis Johnson - Schaumburg IL, US
John S. Whiting - Hampshire IL, US
John F. Waldron - Elgin IL, US

Schumacher Electric Corporation - Mount Prospect IL

H02J 7/00

320107, 320160

A battery charger is disclosed for use with various batteries, such as automotive and marine-type batteries. In accordance with an aspect of the invention, the charging current is alternated between non-zero DC charging current levels. By alternating the charging current between non-zero DC charging levels, the battery can be charged to a higher capacity (i.e., ampere hours) faster, thus reducing the charging time and at the same time allow the rating of the battery charger to be increased. In accordance with another important aspect of the invention, the technique for alternating the charging current can be implemented in both linear and switched-mode battery chargers.

2011006, Mar 24, 2011

Sep 18, 2009

12/562480

John F. Waldron - Elgin IL, US

H02J 7/00

320107

A battery maintenance kit for sealed batteries is disclosed that is useful for as servicing sealed 6 volt/12 volt lead acid batteries and optionally determining the state of charge of such a battery. In exemplary embodiment of the invention, the battery maintenance kit is configured as a universal kit for servicing sealed batteries used in a variety of 6 volt/12 volt DC vehicle applications, such as applications for automobiles and trucks, motorcycles, lawn tractors and all terrain vehicles (ATVs). For example, the battery maintenance kit may be equipped with a 6/12 volt DC compact battery charger with a quick disconnect harness. Various termination assemblies may be provided including battery clamps, a cigarette lighter adapter and ring terminals, which enable the battery charger to be used in various applications. The battery maintenance kit may also include a voltmeter, wrenches, a flashlight, battery side mount conversion terminals and a battery post cleaner. In accordance with an important aspect of the invention. The interior of the carrying case is formed with a dedicated compartment for each item in the kit that is segregated from all other compartments. The compartments for some items are form fitting compartments and are thus configured to the shape of the item to be carried. One or more studs is provided in one dedicated compartment for securely carrying the battery clamps. The carrying case allows all of the items to be carried securely in a closed carrying case and transported without movement in the carrying case.