Inventor
SOMMERFELD HOWARD
US34 patents
⚠️ This page may combine multiple inventors who share the name “SOMMERFELD HOWARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WABTEC HOLDING CORP
22 patentsUS8006815B2Aug 30, 2011
Parking brake assembly for railway vehicle brake system
WABTEC HOLDING CORP19 citations92
US7802662B2Sep 28, 2010
Slack adjuster for railway vehicle brake rigging
WABTEC HOLDING CORP22 citations89
US7419065B2Sep 2, 2008
Light weight high capacity friction draft gear assembly
WABTEC HOLDING CORP9 citations84
US7264130B2Sep 4, 2007
Housing for long travel high capacity friction draft gear assembly
WABTEC HOLDING CORP10 citations84
US7258243B2Aug 21, 2007
Arrangement for preventing energy absorbing material degradation on draft gears
WABTEC HOLDING CORP12 citations84
US7156471B2Jan 2, 2007
Two-stage cylinder for applying automatic set and release hand brake
WABTEC HOLDING CORP10 citations84
US7093694B2Aug 22, 2006
Release hold mechanism with gravity weighted indicator flag
WABTEC HOLDING CORP11 citations82
US7467812B2Dec 23, 2008
Brake hose lifting apparatus
WABTEC HOLDING CORP5 citations74
US7216940B2May 15, 2007
Adaptation of TMX for axle motion III truck application
WABTEC HOLDING CORP8 citations74
US7588154B2Sep 15, 2009
Two piece draft gear housing having an integral yoke
WABTEC HOLDING CORP3 citations63
US7540387B2Jun 2, 2009
Draft gear assembly
WABTEC HOLDING CORP3 citations63
US7487695B2Feb 10, 2009
Release holding mechanism for ASR hand brake
WABTEC HOLDING CORP6 citations63
US7461869B2Dec 9, 2008
Air brake hose coupling with locking device
WABTEC HOLDING CORP5 citations63
US7311215B2Dec 25, 2007
Positional variable orifice pin for hydraulic pressure control in a draft gear
WABTEC HOLDING CORP4 citations63
US7287655B2Oct 30, 2007
Energy dissipating elastomer damper
WABTEC HOLDING CORP2 citations63
US7281635B2Oct 16, 2007
Friction draft gear housing having a removable end wall
WABTEC HOLDING CORP2 citations63
US7175036B2Feb 13, 2007
Long travel high capacity friction draft gear assembly
WABTEC HOLDING CORP5 citations63
US7467724B2Dec 23, 2008
Locking arrangement for a bearing assembly of a male connection member for an articulated coupling apparatus
WABTEC HOLDING CORP6 citations60
US7461867B2Dec 9, 2008
Brake hose lifting apparatus
WABTEC HOLDING CORP0 citations52
US7448651B2Nov 11, 2008
Brake hose lifting apparatus
WABTEC HOLDING CORP0 citations52
US7384072B2Jun 10, 2008
Brake hose lifting apparatus
WABTEC HOLDING CORP0 citations52
US7900785B2Mar 8, 2011
Taper under tapered plate to increase side force on the movable plate
WABTEC HOLDING CORP0 citations31
WESTINGHOUSE AIR BRAKE TECH CORP
5 patentsUS6325465B1Dec 4, 2001
Quick release mechanism for a railway car hand brake
WESTINGHOUSE AIR BRAKE TECH CORP15 citations79
US7021430B2Apr 4, 2006
Release hold mechanism for a hand brake having a quick release mechanism
WESTINGHOUSE AIR BRAKE TECH CORP7 citations74
US6702073B2Mar 9, 2004
Hand brake lever interface for single-cylinder truck-mounted railway car brake
WESTINGHOUSE AIR BRAKE TECH CORP12 citations74
US6923331B2Aug 2, 2005
High capacity draft gear
WESTINGHOUSE AIR BRAKE TECH CORP6 citations63
US7011190B2Mar 14, 2006
Hand brake assembly for an ankle motion III truck bogie
WESTINGHOUSE AIR BRAKE TECH CORP5 citations60
SOMMERFELD HOWARD
4 patentsUS8469464B2Jun 25, 2013
Parking brake assembly for railway vehicle brake system
SOMMERFELD HOWARD5 citations83
US8256584B2Sep 4, 2012
Parking brake assembly for railway vehicle brake system
SOMMERFELD HOWARD6 citations83
US8230985B2Jul 31, 2012
Parking brake assembly for railway vehicle brake system
SOMMERFELD HOWARD8 citations83
US7097055B2Aug 29, 2006
Long buff short draft travel draft gear for use in a 24.625 inch pocket
SOMMERFELD HOWARD1 citations51