Robert Allen Grubba
Engineering at Baylor Rd, Rochester, MI

License number
Louisiana PE.0025708
Issued Date
Feb 1, 1994
Category
Civil Engineer
Address
Address
853 Baylor Rd, Rochester, MI 48309

Professional information

Robert Grubba Photo 1

Inserted Molded Traction Tire For A Model Toy Train

US Patent:
6616506, Sep 9, 2003
Filed:
May 17, 2000
Appl. No.:
09/572188
Inventors:
James G. Morrison - Royal Oak MI
Robert A. Grubba - Rochester Hills MI
Assignee:
Lionel L.L.C. - Chesterfield MI
International Classification:
A63H 1902
US Classification:
446467, 446465, 264274
Abstract:
The present invention provides a wheel assembly for a model toy train wherein the wheel assembly includes a wheel and a traction tire. The wheel including an undercut recess and at least one sprue. The traction tire is molding into the undercut recess through the sprue.


Robert Grubba Photo 2

Puffing Fan Driven Smoke Unit For A Model Train

US Patent:
6485347, Nov 26, 2002
Filed:
May 17, 2000
Appl. No.:
09/572645
Inventors:
Robert A. Grubba - Rochester Hills MI
James G. Morrison - Royal Oak MI
Assignee:
Lionel, L.L.C. - Chesterfield MI
International Classification:
A63H 1914
US Classification:
446 25, 446 24, 446467
Abstract:
The present invention provides a smoke generator for a model train. The invention allows a toy locomotive to produce smoke as an actual train would, in a puffing pattern. The present achieves its purpose by manipulating the flow of air through a smoke generating housing with a fan and a blocking device.


Robert Grubba Photo 3

Controller For A Model Toy Train Set

US Patent:
6441570, Aug 27, 2002
Filed:
Jun 14, 1999
Appl. No.:
09/332649
Inventors:
Robert A. Grubba - Rochester Hills MI
Neil Young - Redwood City CA
Charles P. Horan - East Pointe MI
Martin D. Pierson - Howell MI
Assignee:
Lionel, LLC. - Chesterfield MI
International Classification:
H02K 714
US Classification:
318 3, 318 9, 105 15, 104DIG 1, 213 75 TC, 246122 A, 246192 R, 446467, 701 19
Abstract:
The present invention provides a controller for a model toy train set. In a first aspect of the invention, the controller includes a plurality of input connectors for receiving supply power from one or more remote power supplies and providing such power to a plurality of output connectors. In a second aspect of the invention, the controller includes an input device for producing an input signal to limit the amount of output power supplied from the controller to a toy train set when the controller is remotely operated from a remote transmitter. In a third aspect of the invention, the controller includes a programming circuit having a first mode for controlling a plurality of output channels from separate sets of inputs and a second mode for controlling the plurality of output channels from a single set of inputs.


Robert Grubba Photo 4

Drive Assembly For Model Train

US Patent:
6186074, Feb 13, 2001
Filed:
Nov 3, 1998
Appl. No.:
9/185304
Inventors:
Robert A. Grubba - Rochester Hills MI
Caleb Sullivan - Clinton Township MI
Kevin B. Chlebek - Farmington Hills MI
Jeffery A. Price - Lakeville MI
Assignee:
Lionel Trains, Inc. - Chesterfield MI
International Classification:
B61D 718
US Classification:
105 15
Abstract:
The present invention provides a drive assembly for a model toy train which connects a single drive shaft from an electric motor to a pair of discrete truck assemblies. The drive shaft drives a plurality of pinions which in turn drive a pair of worm shafts which extend toward the truck assemblies. A pair of worm wheel shafts are driven by the worm shafts to drive the wheels on the truck assemblies. A saddle and bearing combination rotationally connects the model toy train to the truck assemblies allowing the truck assemblies to freely rotate.