Inventor

Gerald C. Ruehlow

Inventor

Oconomowoc, WI, US

Overview

43→

Patents

1990–2013

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 43 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F02Bprimary

F02BInternal-combustion piston engines14%

H02KDynamo-electric machines9%

Y10TTechnical subjects covered by former us classification8%

F01PCooling of machines or engines in general7%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters7%

F02DControlling combustion engines6%

H02JElectric power networks5%

Y02TClimate change mitigation technologies related to transportation5%

LOC154%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications4%

PatentTitleYear

RE044084'Control system for stand-by electrical generator'2013 7,000,575'Method and apparatus for reducing fan noise in an electrical generator'2006 6,863,034'Method of controlling a bi-fuel generator set'2005 6,824,067'Method of cooling engine coolant flowing through a radiator'2004 6,784,574'Air flow arrangement for a stand-by electric generator'2004 6,742,771'Fuel mixer for internal combustion engine'2004 6,726,734'Device for deflecting debris from lawnmower air intake'2004 6,706,084'Device for deflecting debris from lawnmower air intake'2004 6,686,547'Relay for a transfer mechanism which transfers power between a utility source and a stand-by generator'2004 6,668,530'Grass-cutting tractor with improved operating features'2003 6,659,894'Variable pitch sheave assembly for fan drive system'2003 6,657,416'Control system for stand-by electrical generator'2003 6,653,821'System controller and method for monitoring and controlling a plurality of generator sets'2003 6,630,756'Air flow arrangement for generator enclosure'2003 D0479721'Engine cover'2003 D0479532'Engine cover'2003 D0479244'Engine cover'2003 6,552,454'Generator structure incorporating multiple electrical generator sets'2003 D0471207'Engine cover'2003 6,443,130'Fuel demand regulator'2002 6,412,478'Breather for internal combustion engine'2002 6,365,982'Apparatus and method for positioning an engine throttle'2002 6,181,028'Transfer mechanism for transferring power between a utility source and a stand-by generator'2001 6,068,017'Dual-fuel valve'2000 6,045,448'Power-transmitting drive assembly with improved resilient devices'2000 5,943,986'Engine heat exchange apparatus with slide-mounted fan carrier assembly'1999 5,914,467'Automatic transfer switch with improved positioning mechanism'1999 5,914,551'Electrical alternator'1999 5,902,094'Flow control valve for a pressure washer'1999 5,899,176'Apparatus for reducing engine fan noise'1999 5,890,413'Piston for water pump and related method'1999 5,861,604'Arc welder and method providing use-enhancing features'1999 5,831,366'Permanent magnet alternator'1998 5,823,752'Adapter for mechanically coupling a pump and a prime mover'1998 5,816,102'Engine-generator set with integral gear reduction'1998 5,537,025'Battery charger/pre-exciter for engine-driven generator'1996 5,504,417'Engine-driven generator'1996 5,497,735'Internal combustion engine for portable power generating equipment'1996 5,489,811'Permanent magnet alternator'1996 5,376,877'Engine-driven generator'1994 5,317,999'Internal combustion engine for portable power generating equipment'1994 D0308871'Internal combustion engine'1990 D0308872'Internal combustion engine'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to BRIGGS & STRATTON CORP (2)· patent assignee history

1990–2013Based in Oconomowoc, WI, US· patent location history

1994–1999Patents assigned to GENERAC CORP (11)· patent assignee history

1998–1999Patents assigned to GENERAC PORTABLE PRODUCTS LLC (3)· patent assignee history

1999–2013Patents assigned to GENERAC POWER SYSTEMS INC (25)· patent assignee history

2003Patents assigned to GENERAC POWER SYTEMS INC (1)· patent assignee history

2003Based in Oconomowac, WI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GENERAC POWER SYSTEMS INC	25	1999–2013
GENERAC CORP	11	1994–1999
GENERAC PORTABLE PRODUCTS LLC	3	1998–1999
BRIGGS & STRATTON CORP	2	1990
GENERAC POWER SYTEMS INC	1	2003

Locations

Location	Patents	Span
Oconomowoc, WI, US	42	1990–2013
Oconomowac, WI, US	1	2003