Maher Charles E: Cardiac synchronization system and method. Medical Innovations, Cesari Robert A, McKenna John F, Kehoe Andrew F, September 17, 1974: US3835845 (47 worldwide citation)

Improved internal circulatory assist apparatus comprising control means whereby the optimum synchronization of the assist apparatus with the beat of the heart can be effectively achieved while using any of a plurality of parts of the body as monitor sites for obtaining an arterial signal representat ...

Abrahams Louis, Hutchins Jr Burleigh M, Waters James L: Novel pumping apparatus. Waters Associates, Cesari Robert A, McKenna John F, Kehoe Andrew F, December 17, 1974: US3855129 (40 worldwide citation)

A compact pumping system especially useful in liquid chromatography wherein comprising a liquid path which is fully flushed on each stroke of a pump, a pump which provides substantially pulse-free flow, a pressure-sensor integrated into said flow path and operably connected to the control circuit of ...

Hutchins Jr Burleigh M: Motor control circuit. Waters Associates, Cesari Robert A, McKenna John F, Kehoe Andrew F, December 17, 1974: US3855515 (32 worldwide citation)

A motor control circuit limits power dissipation in a stepping motor by limiting the motor driving current to that required by the load. Resonance effects in the driving motor are substantially eliminated by eliminating undesired reverse driving current. A variable frequency pulse generator establis ...

Schumann Wilhelm, Strathmann Heinrich: Polyimide membrane and process for making same. Forschungsinstitut Bergof, Cesari Robert A, McKenna John F, Kehoe Andrew F, December 9, 1975: US3925211 (27 worldwide citation)

The present invention relates to semipermeable asymmetric membranes and to a process for preparing them. These membranes are especially suitable for use in ultrafiltration and reverse osmosis.

Hackenberg Robert A: Decorator box. Robertson Paper Box Co, Cesari Robert A, McKenna John F, November 11, 1975: US3918631 (26 worldwide citation)

A box formed from a single cardboard blank has four sides and top and bottom covers. The sides of the box have double walls. The outer wall carries advertising and descriptive material and the inner wall is decorated with a suitable design. The outer wall is provided with tear lines so that once the ...

Lambert Michael: Gear drive having continuously variable drive. Lambert Michael, MCKENNA John F, December 16, 2004: WO/2004/109155 (19 worldwide citation)

A continuously variable drive ratio transmission includes a support (10), a first shaft (16) rotatably mounted to the support so that the shaft (16) can rotate about a first axis, a helical rack (18) supported by the first shaft (16) so that the rack has a plurality of toothed convolutions (18a) spa ...

Abrahams Louis: Novel gasket and valve comprising same. Waters Associates, Cesari Robert A, McKenna John F, Kehoe Andrew F, November 11, 1975: US3918495 (16 worldwide citation)

A plate-like structure comprising a liquid flow path formed in one face thereof, a thin ductile seal-forming coating on the face of the structure which forms the flow path. The structure finds many utilities, most advantageously in constructing a novel valve wherein the disk is flexible and adapted ...

Carr Kenneth L: Method and apparatus for detecting and treating vulnerable plaques. Meridian Medical Systems, Carr Kenneth L, MCKENNA John F, December 16, 2004: WO/2004/107974 (12 worldwide citation)

Apparatus for detecting vulnerable plaques embedded in the wall of a patient's blood vessel includes an intravascular catheter containing a microwave antenna, an extracorporeal radiometer having a signal input, a reference input and an output, a cable for electrically connecting the antenna to the s ...

Lenihan Timothy J: Method and apparatus for minimizing thermal trauma to an organ during tissue ablation of a different organ. ADVANCED CARDIAC THERAPEUTICS, Mckenna John F, August 12, 2010: WO/2010/090701 (12 worldwide citation)

A method of minimizing thermal trauma during tissue ablation including the steps of placing an ablation catheter at an ablation site on a first organ in a patient's body, providing energy to the ablation catheter to heat first organ tissue at the ablation site, providing microwave radiometry apparat ...

Henry Donald E: Method of preparing cells for inspection. Cesari Robert A, McKenna John F, Kehoe Andrew F, September 9, 1975: US3904781 (11 worldwide citation)

A process for preparing cells for microscope examination whereby a suspension of the cells is agitated by convection currents caused by the cooling effect of the evaporation of a suspension medium. The process is advantageously carried out in a shallow well formed of a microscopic slide bottom membe ...