The information below identifies applicable United States patents for each MGM Brakes product type. This notice is provided in compliance with the virtual patent marking requirements of 35 U.S.C. § 287(a). U.S. and Foreign Patents Pending.
S-Cam / Drum Brake Actuator Products
C - Service Chambers, Standard Stroke
CL - Service Chambers, Long Stroke
CS - Service Chambers, Sealed, Long Stroke
U.S. Patent – None
TR, TR-HD, TR-HDW, TR-T, TR-THD, TR-THDW, TR-TS, TR-TSHD, TR-TSHDW - Double Diaphragm Parking Actuators, Standard Stroke
TR-LP3 / TR-L3, TR-LP3HD, TR-LP3T / TR-L3T, TR-LP3THD, TR-LP3THDW, TR-LP3TS, TR-LP3TSHD, TR-LP3TSHDW - Double Diaphragm Parking Actuators, Long Stroke
U.S. Patent – None
Type 30 & 36 Parking Only - U.S. Patents - 8,342,076 (Corrosion Fighter)
LTR-T - Double Diaphragm Parking Actuators with Integrated Release Bolt, Standard Stroke
LTR-L3, LTR-L3W, LTR-L3T - Double Diaphragm Parking Actuators with Integrated Release Bolt, Long Stroke
U.S. Patent – None
LTS - Double Diaphragm Parking Actuators with Integrated Release Bolt, Long Stroke
U.S. Patent – None
Type 30 Parking Only - U.S. Patent - 8,342,076 (Corrosion Fighter)
MJS - Piston Type (J-Series, Magnum, Performance Plus) Parking Actuators, Standard and Long Stroke
U.S. Patent – None
Wedge Brake Actuators
CW – Service Chamber
U.S. Patent – None
MJW – Piston Type (J-Series, Magnum, Performance Plus) Parking Actuator
U.S. Patent – None
Air Disc Brake Actuators
CSB - Service Chamber, Sealed, Standard Stroke
U.S. Patent – None
TRB - Double Diaphragm Parking Actuator, Standard Stroke
U.S. Patent – None
Type 30 & 36 Parking Only - U.S. Patents - 8,342,076 (Corrosion Fighter)
MJB – Piston Type (J-Series, Magnum, Performance Plus) Parking Actuator, Standard Stroke
U.S. Patent – None
Remote Mount Cylinders
R7A, R8H - Remote Mount Cylinder
U.S. Patent – None
Electronic Brake Monitoring Products
S-Cam / Drum Electronic Brake Monitoring Systems (e-Stroke)
U.S. Patents – 8,319,623; 8,994,523
Air Disc Brake Electronic Monitoring Systems (e-Stroke)
U.S. Patents – 8,319,623; 8,616,342; 8,994,523; 9,440,631; 9,855,940; U.S. and Foreign Patents Pending
Additional Brake Actuator Patents
U.S. and Foreign Patents Pending
Additional Brake Monitoring Patents
U.S. Patents – 9,440,633; 9,873,419