Pedro J Cabrera
Radiology at 118 Ct, Miami, FL

4152391, May 1, 1979

Dec 16, 1977

5/861356

Pedro P. Cabrera - Miami FL

Coulter Electronics, Inc. - Hialeah FL

G01N 114

422103

A liquid transfer valve assembly capable of measuring and transferring plural different volumes from a sample source to defined flow paths under the influence of pressurized fluid. The preferred valve assembly includes a pair of stationary outer disc members and a movable inner disc member sandwiched therebetween, their facing surfaces sealingly frictionally engaged. Each of the discs has a central axial passage arranged for mounting on a spindle, with the sandwiched disc having a radial pin entering its axial passage for cooperation with a slotted spindle, the rotation of the spindle rotating only said sandwiched disc relative between a pair of positions. The center disc carries at least a segmenting bore pair, at least one of the bores being a measuring passage and having a precise volume. A matching port pair is provided in each of the outer discs defining flow paths through the valve arranged selectively to be intercepted by said measuring bore of the segmenting bore pair. The center disc also carries at least one exterior sample loop sealingly fixedly secured thereto and communicating to passageways formed in the disc.

4148859, Apr 10, 1979

May 15, 1978

5/906235

Ronald O. Simpson - Miami FL
Pedro P. Cabrera - Miami FL

Coulter Electronics, Inc. - Hialeah FL

G01N 114

422103

Improvements in a backwash system for diluting apparatus wherein a rinse solution is directed to the fluid transfer valve thereof and thence back to and through the sample pick-up probe to a receptacle and then to a waste depositary. The receptacle is mounted on a carrier, in turn mounted for movement in a track from a recessed condition, along a path directed first outward and then upward to engage the delivery end of the sample probe in a fluid tight sealed coupling. A plunger of an air cylinder effects the movement of the receptacle in the track. A vacuum operated switch is employed to assure that the rinse solution will not be dispensed as backwash unless the sealed coupling is made. Alternatively, a microswitch can be substituted for the vacuum operated switch and presented in the path of the carrier to be actuated when the carrier has moved sufficiently to establish the sealed coupling between the receptacle and the delivery end of the sample probe. In either instance, the switch is scanned to ascertain its state and unless actuated, backwash is prevented.

4136970, Jan 30, 1979

Dec 15, 1977

5/860674

Pedro P. Cabrera - Miami FL
Robert T. Duncan - Miami FL

Coulter Electronics, Inc. - Hialeah FL

B01F 1302

366101

A few large, fast rising gas bubbles are generated near the bottom of a sample container and the upward movement of the bubbles causes a mixing action of the sample. The bubbles result from the periodic injection of discrete quantums of gas into the bottom of the container. The volume of a discrete gas quantum determines the size of a resulting bubble. Both the volume and frequency of generation of the quantums of gas are controlled by a timing circuit which operates a solenoid valve that permits each discrete quantum of gas to pass into the sample container.

4702889, Oct 27, 1987

Jan 16, 1986

6/819381

Pedro P. Cabrera - Miami FL
Humberto A. Berra - Carol City FL
Edward N. Doty - Pompano Beach FL

Coulter Electronics Inc. - Hialeah FL

G01N 120, F16K 2102, F16K 2300

422103

A liquid diluting and transfer valve has disc like valve elements provided with faces frictionally engaged. The valve further includes passageways for passing both sample liquid and rinse liquid and a continuous groove formed in one of the respective faces. This continuous groove effectively isolates the passageway openings to the faces and is capable of blocking passage of leakage material along the face to the periphery of the engaged face.

4387076, Jun 7, 1983

Oct 14, 1981

6/311221

Pedro P. Cabrera - Miami FL
Glenn D. Talbot - Miami FL
Larry C. Carman - Hialeah FL

Coulter Electronics, Inc. - Hialeah FL

G01N 3102

422 67

A sample feeding arrangement which receives sealed sample tubes, moves them one at at time to a seal piercing and sample aspiration station, and then discharges the used tubes. This sample feeding arrangement is mounted inside a sample analyzer of the type which previously had operated semiautomatically. Receipt of a sample tube at the infeed station of this feeding arrangement initiates the repositioning of the tube to an aspiration station, which thereat enables all other handling steps of the tube, sample aspiration, and the full system cycle of the analyzer.

2009024, Oct 1, 2009

Jun 23, 2008

12/144444

Pedro Cabrera - Miami FL, US
Jose A. Suarez - Miami FL, US
Ruben Guinovart - Miami FL, US

E06C 7/06

182111

A stabilizing mechanism for rigid fixed and extension ladders that includes an anchorage assembly removably mounted to one of the rungs of a ladder. A linkage assembly is mounted to the anchorage assembly and it supports a rigid elongated member that in turn pivotally supports two arched arm members that are selectively locked in place by a locking assembly that can be remotely actuated. The arm members embrace a support member thereby providing a firm engagement of the ladder assembly to the support member. A release mechanism remotely disengages the ladder from the support member once a user descends.