Douglas J. Calvin

Person

Farmington Hills, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Dolly assembly for a conveyor system
- Patent number 11,260,833
- Issue date Mar 1, 2022
- Motor City Wash Works, Inc.
- Lionel Belanger
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Lighting device for a component of a vehicle wash system
- Patent number 10,458,607
- Issue date Oct 29, 2019
- Motor City Washworks, Inc.
- Robert Wentworth
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Conveyor assembly including a trapdoor assembly having a device
- Patent number 9,315,172
- Issue date Apr 19, 2016
- Motor City Wash Works, Inc.
- Robert Wentworth
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle wash mitter assembly with offset racks
- Patent number 7,784,140
- Issue date Aug 31, 2010
- Motor City Wash Works, Inc.
- Robert J. Wentworth
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Flap-type rotary finishing device
- Patent number 7,347,771
- Issue date Mar 25, 2008
- Robert J. Wentworth
- B24 - GRINDING POLISHING
Information Patent Grant
Flap-type rotary finishing device
- Patent number 6,949,019
- Issue date Sep 27, 2005
- Belanger Industrial Products, Inc.
- Robert J. Wentworth
- B24 - GRINDING POLISHING
Information Patent Grant
Abrading/polishing device and method of making and using same
- Patent number 6,368,187
- Issue date Apr 9, 2002
- Belanger, Inc.
- Robert J. Wentworth
- B24 - GRINDING POLISHING
Information Patent Grant
Rotatable reloading apparatus for a stapler
- Patent number 4,552,297
- Issue date Nov 12, 1985
- Belanger, Inc.
- James A. Belanger
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Power operated bi-fold strip curtain door assembly
- Patent number 4,432,406
- Issue date Feb 21, 1984
- Belanger, Inc.
- James A. Belanger
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Power operated bi-fold strip curtain door assembly
- Patent number 4,427,049
- Issue date Jan 24, 1984
- Belanger, Inc.
- James A. Belanger
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Retractable wax, buff and polish apparatus for cars
- Patent number 4,369,541
- Issue date Jan 25, 1983
- Belanger, Inc.
- James A. Belanger
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
DOLLY ASSEMBLY FOR A CONVEYOR SYSTEM
- Publication number 20210188222
- Publication date Jun 24, 2021
- Motor City Washworks, Inc.
- Lionel Belanger
- B60 - VEHICLES IN GENERAL
Information Patent Application
LIGHTING DEVICE FOR A COMPONENT OF A VEHICLE WASH SYSTEM
- Publication number 20190072247
- Publication date Mar 7, 2019
- Motor City Wash Works, Inc.
- Robert Wentworth
- B60 - VEHICLES IN GENERAL
Information Patent Application
FLAP-TYPE ROTARY FINISHING DEVICE
- Publication number 20110081849
- Publication date Apr 7, 2011
- Robert J. Wentworth
- B24 - GRINDING POLISHING
Information Patent Application
VEHICLE WASH MITTER ASSEMBLY WITH OFFSET RACKS
- Publication number 20090205149
- Publication date Aug 20, 2009
- Robert J. Wentworth
- B60 - VEHICLES IN GENERAL
Information Patent Application
FLAP-TYPE ROTARY FINISHING DEVICE
- Publication number 20060246829
- Publication date Nov 2, 2006
- BELANGER INDUSTRIAL PRODUCTS, INC.
- Robert J. Wentworth
- B24 - GRINDING POLISHING
Information Patent Application
ADJUSTABLE SPRAY APPLICATOR FOR VEHICLE WASHING APPLICATIONS
- Publication number 20060102756
- Publication date May 18, 2006
- Douglas Calvin
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Flap-type rotary finishing device
- Publication number 20050272358
- Publication date Dec 8, 2005
- Belanger Industrial Products, Inc.
- Robert J. Wentworth
- B24 - GRINDING POLISHING
Information Patent Application
FLAP-TYPE ROTARY FINISHING DEVICE
- Publication number 20050153639
- Publication date Jul 14, 2005
- BELANGER INDUSTRIAL PRODUCTS, INC.
- Robert J. Wentworth
- B24 - GRINDING POLISHING
Information Patent Application
Method of abrading/polishing device and methods of making and using...
- Publication number 20010009839
- Publication date Jul 26, 2001
- Robert J. Wentworth
- B24 - GRINDING POLISHING

Douglas J. Calvin

Person

Patents Grantslast 30 patents

Dolly assembly for a conveyor system

Lighting device for a component of a vehicle wash system

Conveyor assembly including a trapdoor assembly having a device

Vehicle wash mitter assembly with offset racks

Flap-type rotary finishing device

Flap-type rotary finishing device

Abrading/polishing device and method of making and using same

Rotatable reloading apparatus for a stapler

Power operated bi-fold strip curtain door assembly

Power operated bi-fold strip curtain door assembly

Retractable wax, buff and polish apparatus for cars

Patents Applicationslast 30 patents

DOLLY ASSEMBLY FOR A CONVEYOR SYSTEM

LIGHTING DEVICE FOR A COMPONENT OF A VEHICLE WASH SYSTEM

FLAP-TYPE ROTARY FINISHING DEVICE

VEHICLE WASH MITTER ASSEMBLY WITH OFFSET RACKS

FLAP-TYPE ROTARY FINISHING DEVICE

ADJUSTABLE SPRAY APPLICATOR FOR VEHICLE WASHING APPLICATIONS

Flap-type rotary finishing device

FLAP-TYPE ROTARY FINISHING DEVICE

Method of abrading/polishing device and methods of making and using...