1
Roy D Kornbluh, Ronald E Pelrine, Paul K Gallagher, Joseph S Eckerle, Donald E Czyzyk, Subramanian Venkat Shastri, Qibing Pei: Electroactive polymer animated devices. SRI International, Beyer Weaver & Thomas, July 1, 2003: US06586859 (118 worldwide citation)

The present invention relates to animated devices that include one or more electroactive polymer transducers. When actuated by electrical energy, an electroactive polymer produces mechanical deflection in one or more directions. This deflection may be used to produce motion of a feature included in ...


2
Ronald E Pelrine, Roy David Kornbluh, Scott E Stanford, Qibing Pei, Richard Heydt, Joseph S Eckerle, Jonathan R Heim: Electroactive polymer devices for moving fluid. SRI International, Beyer Weaver & Thomas, June 20, 2006: US07064472 (99 worldwide citation)

The invention describes devices for performing thermodynamic work on a fluid, such as pumps, compressors and fans. The thermodynamic work may be used to provide a driving force for moving the fluid. Work performed on the fluid may be transmitted to other devices, such as a piston in a hydraulic actu ...


3
Joseph S Eckerle: Blood pressure monitoring method and apparatus. SRI International, Victor R Beckman, January 24, 1989: US04799491 (93 worldwide citation)

Intraarterial blood pressure is measured noninvasively by an electromechanical transducer. The correct hold-down force to be applied to the transducer for obtaining accurate blood pressure measurements is determined by obtaining a set of at least one of the diastolic pressure, systolic pressure, and ...


4
Ronald E Pelrine, Roy D Kornbluh, Joseph S Eckerle: Elastomeric dielectric polymer film sonic actuator. SRI International, Brian R Coleman MSEE, Tamiz Khan, Oppenheimer Wolff & Donnelly, January 29, 2002: US06343129 (78 worldwide citation)

A sonic actuator including a multi-layer membrane having an elastomeric dielectric polymer layer with a first surface and a second surface, a first compliant electrode layer contacting the first surface of the polymer layer, and a second compliant electrode layer contacting the second surface of the ...


5
Joseph S Eckerle: Blood pressure monitoring method and apparatus. SRI International, Victor R Beckman, February 7, 1989: US04802488 (76 worldwide citation)

Intraarterial blood pressure is measured noninvasively by an electromechanical transducer (22) that includes an array of transducer elements (22-1 through 22-19). The transducer extends across an artery (24) with transducer elements at the ends of the array extending beyond opposite edges of the art ...


6
Joseph S Eckerle: Noninvasive blood pressure monitoring transducer. SRI International, Urban H Faubion, May 26, 1981: US04269193 (50 worldwide citation)

Intra-arterial blood pressure is noninvasively measured and monitored by an electromechanical force sensor which is made up of an array of individual pressure or force sensing elements, each of which has at least one dimension smaller than the lumen of the underlying artery wherein blood pressure is ...


7
Joseph S Eckerle, Dean C Winter: Apparatus for positioning transducer for blood pressure monitor. Colin Electronics, Oliff & Berridge, January 29, 1991: US04987900 (49 worldwide citation)

A system for positioning a tonometric sensor array over an artery on a patient's wrist such that minimal hold down pressure is required to flatten said artery. The preferred embodiment of the invention comprises a sensor case which can be attached to a patient's wrist in a manner similar to a conven ...


8
Roy D Kornbluh, Ronald E Pelrine, Qibing Pei, Joseph S Eckerle: Electroactive polymer animated devices. SRI International, Beyer Weaver, May 1, 2007: US07211937 (43 worldwide citation)

The present invention relates to animated devices that include one or more electroactive polymer transducers. When actuated by electrical energy, an electroactive polymer produces mechanical deflection in one or more directions. This deflection may be used to produce motion of a feature included in ...


9
Joseph S Eckerle, Dale W Ploeger, Steven T Holmes, Thomas P Low, Rudolf Elbrecht, Philip R Jeuck III, Ronald E Pelrine, Victor T Newton Jr: Pulse rate sensor system. Colin Electronics, Oliff & Berridge, September 14, 1993: US05243992 (42 worldwide citation)

A pulse rate sensor system is packaged in a wristwatch sized assembly and is worn by the user to provide an accurate determination of pulse rate. A tonometer sensor is provided to detect heartbeat pressure waves produced by a superficial artery. A microcomputer manipulates the unprocessed tonometer ...


10
Joseph S Eckerle: Non-invasive aortic blood flow sensor and method for non-invasively measuring aortic blood flow. Colin Electronics, Oliff & Berridge, March 1, 1994: US05289823 (42 worldwide citation)

A non-invasive aortic blood flow sensor is disclosed. The sensor determines the blood flow in the aorta of a patient based on the pressure difference between the right and left subclavian arteries. The pressure of the subclavian arteries is non-invasively measured by determining the blood pressures ...