David Shulver

Person

Toronto, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Low profile termination cap for direct vent appliance
- Patent number 11,859,826
- Issue date Jan 2, 2024
- Wolf Steel Ltd.
- Derek Fong
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
System and method to cool an exposed surface of an appliance
- Patent number 10,739,014
- Issue date Aug 11, 2020
- Wolf Steel Ltd.
- Wolfgang Schroeter
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Variable pressure pump with hydraulic passage
- Patent number 10,267,310
- Issue date Apr 23, 2019
- Magna Powertrain Inc.
- Cezar Tanasuca
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Vane pump with multiple control chambers
- Patent number 9,534,597
- Issue date Jan 3, 2017
- Magna Powertrain Inc.
- Matthew Williamson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Vane pump with multiple control chambers
- Patent number 9,181,803
- Issue date Nov 10, 2015
- Magna Powertrain Inc.
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Variable capacity vane pump with dual control chambers
- Patent number 8,651,825
- Issue date Feb 18, 2014
- Magna Powertrain Inc.
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Control system and method for pump output pressure control
- Patent number 8,496,445
- Issue date Jul 30, 2013
- Magna Powertrain Inc.
- David R. Shulver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Variable displacement variable pressure vane pump system
- Patent number 8,444,395
- Issue date May 21, 2013
- MAGNA Powertrain, Inc.
- Cezar Tanasuca
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Variable capacity vane pump with dual control chambers
- Patent number 8,317,486
- Issue date Nov 27, 2012
- MAGNA Powertrain, Inc.
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Pump control using overpressure source
- Patent number 8,297,943
- Issue date Oct 30, 2012
- MAGNA Powertrain, Inc.
- David R. Shulver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Control system and method for pump output pressure control
- Patent number 8,202,061
- Issue date Jun 19, 2012
- Magna Powertrain Inc.
- David R. Shulver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Variable displacement vane pump with enhanced discharge port
- Patent number 8,118,575
- Issue date Feb 21, 2012
- Magna Powertrain Inc.
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Vane pump with substantially constant regulated output
- Patent number 8,079,826
- Issue date Dec 20, 2011
- Magna Powertrain Inc.
- David R. Shulver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Variable displacement vane pump with dual control chambers
- Patent number 8,057,201
- Issue date Nov 15, 2011
- Magna Powertrain Inc.
- David R. Shulver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Continuously variable displacement vane pump and system
- Patent number 8,047,822
- Issue date Nov 1, 2011
- Magna Powertrain Inc.
- David R. Shulver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Reduced rotor assembly diameter vane pump
- Patent number 7,997,882
- Issue date Aug 16, 2011
- Magna Powertrain Inc.
- David R. Shulver
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Pump system and decoupler for supplying pressurized hydraulic fluid...
- Patent number 7,866,287
- Issue date Jan 11, 2011
- Magna Powertrain Inc.
- David R. Shulver
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Variable capacity gerotor pump
- Patent number 7,832,997
- Issue date Nov 16, 2010
- MAGNA Powertrain, Inc.
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Variable capacity vane pump with dual control chambers
- Patent number 7,794,217
- Issue date Sep 14, 2010
- Magna Powertrain Inc.
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Dual balance shaft pump assembly
- Patent number 7,037,088
- Issue date May 2, 2006
- Tesma International Inc.
- David Shulver
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
SIMULATED FLAME MECHANISM FOR ELECTRIC FIREPLACES
- Publication number 20230051360
- Publication date Feb 16, 2023
- Wolf Steel Ltd.
- Cuong Quoc Vo
- F21 - LIGHTING
Information Patent Application
HEATING AND COOLING APPLIANCE
- Publication number 20210285661
- Publication date Sep 16, 2021
- Wolf Steel Ltd.
- Cuong Quoc Vo
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Low Profile Termination Cap for Direct Vent Appliance
- Publication number 20200284436
- Publication date Sep 10, 2020
- Wolf Steel Ltd.
- Derek Fong
- F24 - HEATING RANGES VENTILATING
Information Patent Application
System and Method to Cool an Exposed Surface of An Appliance
- Publication number 20180245793
- Publication date Aug 30, 2018
- Wolf Steel Ltd.
- Wolfgang Schroeter
- F24 - HEATING RANGES VENTILATING
Information Patent Application
VARIABLE PRESSURE PUMP WITH HYDRAULIC PASSAGE
- Publication number 20170184096
- Publication date Jun 29, 2017
- Magna Powertrain Inc.
- Cezar TANASUCA
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Vane Pump With Multiple Control Chambers
- Publication number 20150369240
- Publication date Dec 24, 2015
- Magna Powertrain Inc.
- Matthew WILLIAMSON
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Variable Displacement Variable Pressure Vane Pump System
- Publication number 20130251570
- Publication date Sep 26, 2013
- Magna Powertrain Inc.
- Cezar Tanasuca
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Vane Pump with Multiple Control Chambers
- Publication number 20130195705
- Publication date Aug 1, 2013
- Magna Powertrain, Inc.
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Variable Capacity Vane Pump with Dual Control Chambers
- Publication number 20130089446
- Publication date Apr 11, 2013
- Tesma International Inc.
- Matthew WILLIAMSON
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Control System and Method for Pump Output Pressure Control
- Publication number 20120251342
- Publication date Oct 4, 2012
- David R. Shulver
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Variable Capacity Vane Pump with Dual Control Chambers
- Publication number 20100329912
- Publication date Dec 30, 2010
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Variable Displacement Variable Pressure Vane Pump System
- Publication number 20100221126
- Publication date Sep 2, 2010
- MAGNA POWERTRAIN INC.
- Cezar Tanasuca
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Control System and Method For Pump Output Pressure Control
- Publication number 20100028171
- Publication date Feb 4, 2010
- David R. Shulver
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Variable Displacement Vane Pump With Enhanced Discharge Port
- Publication number 20090269232
- Publication date Oct 29, 2009
- Matthew Williamson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Continuously Variable Displacement Vane Pump And System
- Publication number 20090202375
- Publication date Aug 13, 2009
- David R. Shulver
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Variable Displacement Vane Pump With Dual Control Chambers
- Publication number 20090196780
- Publication date Aug 6, 2009
- David R. Shulver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Reduced Rotor Assembly Diameter Vane Pump
- Publication number 20090053088
- Publication date Feb 26, 2009
- David R. Shulver
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Variable Capacity Vane Pump With Dual Control Chambers
- Publication number 20090022612
- Publication date Jan 22, 2009
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
DYNAMIC BALANCER WITH SPEED-RELATED CONTROL MECHANISM
- Publication number 20090016907
- Publication date Jan 15, 2009
- Matthew Williamson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Pump System and Decoupler for Supplying Pressurized Hydraulic Fluid...
- Publication number 20080216778
- Publication date Sep 11, 2008
- Matthew Williamson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Vane Pump With Substantially Constant Regulated Output
- Publication number 20080175724
- Publication date Jul 24, 2008
- David R. Shulver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Variable Capacity Gerotor Pump
- Publication number 20080166251
- Publication date Jul 10, 2008
- MAGNA POWERTRAIN INC.
- Matthew Williamson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Pump Control Using Overpressure Source
- Publication number 20080107554
- Publication date May 8, 2008
- David R. SHULVER
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Dual balance shaft pump assembly
- Publication number 20040028537
- Publication date Feb 12, 2004
- David Shulver
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

David Shulver

Person

Patents Grantslast 30 patents

Low profile termination cap for direct vent appliance

System and method to cool an exposed surface of an appliance

Variable pressure pump with hydraulic passage

Vane pump with multiple control chambers

Vane pump with multiple control chambers

Variable capacity vane pump with dual control chambers

Control system and method for pump output pressure control

Variable displacement variable pressure vane pump system

Variable capacity vane pump with dual control chambers

Pump control using overpressure source

Control system and method for pump output pressure control

Variable displacement vane pump with enhanced discharge port

Vane pump with substantially constant regulated output

Variable displacement vane pump with dual control chambers

Continuously variable displacement vane pump and system

Reduced rotor assembly diameter vane pump

Pump system and decoupler for supplying pressurized hydraulic fluid...

Variable capacity gerotor pump

Variable capacity vane pump with dual control chambers

Dual balance shaft pump assembly

Patents Applicationslast 30 patents

SIMULATED FLAME MECHANISM FOR ELECTRIC FIREPLACES

HEATING AND COOLING APPLIANCE

Low Profile Termination Cap for Direct Vent Appliance

System and Method to Cool an Exposed Surface of An Appliance

VARIABLE PRESSURE PUMP WITH HYDRAULIC PASSAGE

Vane Pump With Multiple Control Chambers

Variable Displacement Variable Pressure Vane Pump System

Vane Pump with Multiple Control Chambers

Variable Capacity Vane Pump with Dual Control Chambers

Control System and Method for Pump Output Pressure Control

Variable Capacity Vane Pump with Dual Control Chambers

Variable Displacement Variable Pressure Vane Pump System

Control System and Method For Pump Output Pressure Control

Variable Displacement Vane Pump With Enhanced Discharge Port

Continuously Variable Displacement Vane Pump And System

Variable Displacement Vane Pump With Dual Control Chambers

Reduced Rotor Assembly Diameter Vane Pump

Variable Capacity Vane Pump With Dual Control Chambers

DYNAMIC BALANCER WITH SPEED-RELATED CONTROL MECHANISM

Pump System and Decoupler for Supplying Pressurized Hydraulic Fluid...

Vane Pump With Substantially Constant Regulated Output

Variable Capacity Gerotor Pump

Pump Control Using Overpressure Source

Dual balance shaft pump assembly