JOHN FOX
Broker in West Upton, MA

License number
Massachusetts 9521303
Issued Date
Jul 21, 2011
Expiration Date
Dec 21, 2013
Type
Salesperson
Address
Address
West Upton, MA 01568

Professional information

John Fox Photo 1

John Fox - Upton, MA

Work:
Sanderson Engine Development Company - Upton, MA Sanderson Engine Development Company
President
CAM Resources - Waltham, MA CAM Resources
Vice President & Division Manager
Computervision Corporation/Services Division - Bedford, MA
Product Support Engineer
Imlac Corporation
Associate Programmer
Education:
Boston University
B.A. in Economics
Boston University & Boston College
business administration


John Fox Photo 2

Metering Pump With Varying Piston Cylinders, And With Independently Adjustable Piston Strokes

US Patent:
6913447, Jul 5, 2005
Filed:
Jan 22, 2002
Appl. No.:
10/051460
Inventors:
John Fox - Upton MA, US
Robert A. Sanderson - Denton TX, US
Assignee:
R. Sanderson Management, Inc. - Denton TX
International Classification:
F04B028/07
US Classification:
417269, 4172221, 417464, 417216, 417426, 417429, 92 605, 92 122, 74 25, 74 45, 74 47, 222283, 222292, 222309, 222319
Abstract:
A metering pump includes an actuating mechanism, and a plurality of piston cylinders coupled to the actuating mechanism. A first of the cylinders has a working volume that differs from a second of the cylinders. The actuating member is centrally located and the cylinders are arranged radially about the actuating mechanism. The working volume of the cylinders can be varied by adjusting the spacing of the cylinders from the actuating mechanism, thus varying the stroke of pistons housed within the cylinders, and/or by providing the cylinders with different inner diameters. A method of metering fluids includes independently adjusting stroke of a plurality of pistons to adjust the volume of metered fluid, and selecting different cylinder diameters to adjust the volume of metered fluid.


John Fox Photo 3

Piston Waveform Shaping

US Patent:
7438029, Oct 21, 2008
Filed:
Sep 21, 2004
Appl. No.:
10/944822
Inventors:
John Fox - Upton MA, US
Albert E. Sanderson - Carlisle MA, US
Robert A. Sanderson - Denton TX, US
Assignee:
R. Sanderson Management, Inc. - Denton TX
International Classification:
F02B 75/04, F02B 75/18, F02B 28/07, F01B 13/04, F04B 27/08
US Classification:
123 561, 123 48 B, 74 47, 74 60, 91505, 92 122, 92 71, 417269
Abstract:
An assembly includes at least one piston, a rotating member, a transition arm, and a mechanism. The transition arm is configured to translate between rotational movement of the rotating member and a first linear motion of the piston. The mechanism is configured to superimpose a second linear motion of the piston onto the first linear motion of the piston. The assembly can be a hydraulic (or air) pump or hydraulic (or air) motor, with the second linear motion resulting in reduced output ripple or smooth torque vs. angular rotation, respectively. Also, the assembly can be an alternator or electric motor, with the additional linear motion resulting in an ac waveform that conforms substantially to a sinewave or a back emf that conforms to the input voltage or electric waveform. In addition, the assembly can be an internal combustion engine in which the second linear motion results in the pistons lingering about top dead center during the combustion process.


John Fox Photo 4

Metering Pump With Proportional Output

US Patent:
2006003, Feb 16, 2006
Filed:
Jun 13, 2005
Appl. No.:
11/150476
Inventors:
John Fox - Upton MA, US
Robert Sanderson - Denton TX, US
Albert Sanderson - Carlisle MA, US
International Classification:
F04B 27/08
US Classification:
417269000
Abstract:
A metering pump includes an actuating mechanism, and a plurality of piston cylinders coupled to the actuating mechanism. A first of the cylinders has a working volume that differs from a second of the cylinders. The actuating member is centrally located and the cylinders are arranged radially about the actuating mechanism. The working volume of the cylinders can be varied by adjusting the spacing of the cylinders from the actuating mechanism, thus varying the stroke of pistons housed within the cylinders, and/or by providing the cylinders with different inner diameters. A method of metering fluids includes independently adjusting stroke of a plurality of pistons to adjust the volume of metered fluid, and selecting different cylinder diameters to adjust the volume of metered fluid.