1
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 ...


2
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 ...


3
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 ...


4
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.


5
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 ...


6
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 ...


7
Abrahams Louis, Hutchins Jr Burleigh M: Novel injector mechanism. Waters Associates, Cesari Robert A, McKenna John F, Kehoe Andrew F, November 4, 1975: US3916692 (10 worldwide citation)

Process, and apparatus for use therewith, for efficiently injecting liquid samples into high pressure fluid streams. The apparatus is particularly advantageous in combination with liquid chromatography systems and is characterized by back-filling of a sample loop from a point proximate the outlet of ...


8
Ehrreich John E, Reti Adrian R: Acicular cobalt powders having high squarenesss ratios. Graham Magnetics, Kehoe Andrew F, Cesari Robert A, McKenna John F, December 17, 1974: US3855016 (8 worldwide citation)

A superior magnetic recording material is composed of acicular particles consisting predominantly of cobalt metal. The metallic particles are reduced from decomposible, acicular crystals which are prepared by a two-step precipitation process to control their size and shape. Also the crystals are imm ...


9
Henry Donald E: Means for preparing cells for inspection. Kehoe Andrew F, Cesari Robert A, McKenna John F, August 12, 1975: US3899610 (6 worldwide citation)

A process, and apparatus useful in carrying out the process, of the type wherein a suspension of cells is agitated by convection currents caused by the cooling effect of an evaporating liquid suspension medium. The process is advantageously carried out in a shallow well with wires or filaments or ot ...


10
Baker John W: Saw for precision cutting tool. Cesari Robert A, McKenna John F, Kehoe Andrew F, December 9, 1975: US3924318 (6 worldwide citation)

Apparatus for precision cutting of sheet material (e.g. non-ferrous metals such as aluminum, brass, asbestos board, or the like), comprising a work-support table, displacement-sensing means mounted along two adjacent sides of said support table and a novel quick-clamping means for holding a workpiec ...