1
Vincent Chern, Kevin Thornton: System and method for attaching an advertisement to an SMS message for wireless transmission. Leap Wireless International, David R Yohannan, Mark W Rygiel, Collier Shannon Scott PLLC, April 30, 2002: US06381465 (289 worldwide citation)

A monitoring and alert system includes a wireless device that sends a monitoring request to a remote server. When the conditions specified by the monitoring request are met, the server generates an SMS alert message. The server determines the maximum length in characters of the SMS message and wheth ...


2
Hugh H Trout III, Howard M Tanner: Method and apparatus for supporting a graft assembly. Eva Corporation, John N Coulby, Mark W Rygiel, Collier Shannon Scott PLLC, June 25, 2002: US06409757 (158 worldwide citation)

A graft repair system for use in the repair of an aneurysm within a vessel is disclosed. The graft repair system includes a graft assembly and a support assembly for supporting the graft assembly within the vessel. The graft assembly may include a tubular portion having proximal and distal ends. The ...


3
Zhou Yang: Method and system for engine braking in an internal combustion engine with exhaust pressure regulation and turbocharger control. Diesel Engine Retarders, Mark W Rygiel, Collier Shannon Scott PLLC, July 22, 2003: US06594996 (30 worldwide citation)

The present invention is directed to a system and method for controlling an engine braking system having an engine with at least one intake and exhaust valve, intake and exhaust manifolds, a turbocharger connected to the intake and exhaust manifolds, and at least one pressure regulation valve. The m ...


4
Robb Janak: Captive volume accumulator for a lost motion system. Diesel Engine Retarders, David R Yohannan, Mark W Rygiel, Collier Shannon Scott PLLC, July 9, 2002: US06415752 (26 worldwide citation)

The present invention is directed to an innovative, economical method or system disclosing a captive volume in a hydraulic circuit which can be selectively hydraulically or pneumatically locked, or vented in order to correspondingly maintain, or increase the total volume of the hydraulic circuit. Th ...


5
James N Usko: Exhaust and intake rocker arm assemblies for modifying valve lift and timing during positive power. Diesel Engine Retarders, David R Yohannan, Mark W Rygiel, Collier Shannon Scott PLLC, March 12, 2002: US06354254 (24 worldwide citation)

The present invention is directed to an apparatus for operating at least one intake valve and at least one exhaust valve in an engine cylinder. The apparatus includes an exhaust valve operating assembly for operating the at least one exhaust valve of the engine cylinder, wherein the exhaust valve op ...


6
John J Lester: Lost motion system and method for fixed-time valve actuation. Diesel Engine Retarders, Mark W Rygiel, Collier Shannon Scott PLLC, February 24, 2004: US06694933 (22 worldwide citation)

The present invention relates generally to a system and method for actuating one or more valves in an internal combustion engine. In particular, the present invention relates to a system and method that may provide lost motion valve actuation of intake, exhaust, and auxiliary valves in an internal c ...


7
Zhou Yang, James F Egan III: Method and system of improving engine braking by variable valve actuation. Diesel Engine Retarders, Mark W Rygiel, Collier Shannon Scott PLLC, November 18, 2003: US06647954 (21 worldwide citation)

The present invention relates to methods of improving engine braking of a reciprocating piston internal combustion engine by variable valve actuation. One embodiment of the present invention enables independent two-valve actuation for each cylinder, and engine braking horsepower can be optimized usi ...


8
James N Usko, Bruce N Swanbon: Apparatus and method to supply oil, and activate rocker brake for multi-cylinder retarding. Diesel Engine Retardersk, John N Coulby, Mark W Rygiel, Collier Shannon Scott PLLC, May 28, 2002: US06394067 (19 worldwide citation)

An apparatus and method for effectuating multi-cycle engine braking is disclosed. The present invention controls the operation of the engine valves to permit more than one compression release event during a single engine operating cycle. The apparatus includes an assembly for operating at least one ...


9
Robb Janak: Captive volume accumulator for a lost motion system. Diesel Engine Retarders, David R Yohamnan, Mark W Rygiel, Collier Shannon Scott PLLC, July 15, 2003: US06591795 (14 worldwide citation)

The present invention is directed to an innovative, economical method or system disclosing a captive volume in a hydraulic circuit which can be selectively hydraulically or pneumatically locked, or vented in order to correspondingly maintain, or increase the total volume of the hydraulic circuit. Th ...


10
Joseph M Vorih, Kevin J Kinerson, Mark A Israel, Richard E Vanderpoel: Engine valve actuator with valve seating control. Diesel Engine Retarders, Mark W Rygiel, David R Yohannan, Collier Shanon Scott PLLC, April 22, 2003: US06550433 (11 worldwide citation)

The present invention provides a hydraulic actuator for operating an engine valve, which includes a means for controlling the seating velocity of the valve. The design allows for free, unrestricted movement of the actuator piston during opening of the engine valve, and an unrestricted return of the ...