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Inventor

SOMMERFELD HOWARD R

US10 patents
⚠️ This page may combine multiple inventors who share the name “SOMMERFELD HOWARD R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WESTINGHOUSE AIR BRAKE CO

6 patents
US5529194AJun 25, 1996

Variable angle friction clutch mechanism for a draft gear assembly

WESTINGHOUSE AIR BRAKE CO23 citations91
US5443170AAug 22, 1995

Variable angle friction clutch mechanism for a draft gear assembly

WESTINGHOUSE AIR BRAKE CO21 citations91
US5152409AOct 6, 1992

Draft gear assembly

WESTINGHOUSE AIR BRAKE CO28 citations91
US5452814ASep 26, 1995

Variable angle friction clutch mechanism for a draft gear assembly

WESTINGHOUSE AIR BRAKE CO12 citations80
US5501347AMar 26, 1996

Variable angle friction clutch mechanism for a draft gear assembly

WESTINGHOUSE AIR BRAKE CO6 citations72
US5495957AMar 5, 1996

Variable angle friction clutch mechanism for a draft gear assembly

WESTINGHOUSE AIR BRAKE CO5 citations72

AMERICAN STANDARD INC

1 patent
US4645187AFeb 24, 1987

Draft gear assembly

AMERICAN STANDARD INC38 citations92

WESTINGHOUSE AIR BRAKE TECH CORP

1 patent
US6981599B2Jan 3, 2006

High capacity shear mechanism

WESTINGHOUSE AIR BRAKE TECH CORP6 citations60

SOMMERFELD HOWARD R

1 patent
US8307955B2Nov 13, 2012

Mechanical release of release holding mechanism for hand brake

SOMMERFELD HOWARD R3 citations56

BRABB DAVID C

1 patent
US9187066B2Nov 17, 2015

Electrically driven set and release hand brake for rail cars

BRABB DAVID C2 citations51