Search

Val Hristake Phones & Addresses

  • New Providence, NJ
  • 116 Meyersville Rd, Chatham, NJ 07928 (973) 701-1068
  • Maplewood, NJ

Resumes

Resumes

Val Hristake Photo 1

Sef Employed

View page
Location:
Chatham, NJ
Industry:
Machinery
Work:

Sef Employed

Pharmacopeia 1999 - 2001
Automated Machinery Design Engineer
Skills:
Solid Modeling With Inventor and Solid Edge
Design and Drafting Using Autocad
Hands on Experience As Machinist and Cnc Programming
Machinery
Automation
Interests:
Jewelry Making
Travel
Fishing
Reading
Languages:
French
Val Hristake Photo 2

Myself

View page
Location:
Chatham, NJ
Work:

Myself

Publications

Us Patents

Self-Adjusting Insertion/Extraction Apparatus For Printed Circuit Boards

View page
US Patent:
54145945, May 9, 1995
Filed:
Dec 14, 1993
Appl. No.:
8/166686
Inventors:
Val Hristake - Maplewood NJ
Assignee:
VSI Corporation - Torrance CA
International Classification:
H05K 500
H05K 712
H01R 13629
H01R 13635
US Classification:
361755
Abstract:
A self-adjusting insertion/extraction apparatus is disclosed for inserting and extracting a printed circuit (PC) board into and from an electrical connector mounted at the base of a PC board rack, the apparatus being configured to function effectively regardless of limited variations in the height of the PC board. The apparatus includes a lever and a pawl pivotally secured to the PC board, at an edge of the board opposite the connector. A spring resiliently couples the lever to the pawl such that pivoting the lever from a raised position to a lowered position yieldably biases the pawl into engagement with the PC board rack, to insert the board into the rack connector. Further, raising the lever from its lowered position to its raised position moves a portion of the lever into engagement with the rack, to extract the board from the connector. Limited variations in the height of the board are accommodated by corresponding flexing of the spring. Some embodiments are configured to disengage the spring from the pawl after the PC board has been fully installed, to reduce the remnant load on the rack's back plane.

Isobaric Expandable Thermal Clamp For Printed Circuit Board

View page
US Patent:
54723531, Dec 5, 1995
Filed:
Apr 13, 1995
Appl. No.:
8/421257
Inventors:
Val Hristake - Maplewood NJ
Irene Hristake - Maplewood NJ
International Classification:
H05K 720
US Classification:
439327
Abstract:
A mounting and fastening device for electronic printed circuit boards (PCBs) in a rack of an electronic enclosure. In particular, the assembly uses an elongated clamping assembly with or without a torque limiting clutching device that may form part of the torque tightening component of the device. The fastening assembly expands transversely to fasten the PCB and maintains a proper thermal conductive path between enclosure and PCB. The expandable clamping feature of the invention has several embodiments. A first embodiment of the assembly includes at least one matching pair of a first "U" channel (2) of length similar to the PCB that is nested loosely inside a reversed second "U" channel (1) of the same length with each pair having ends of the first and second channels that have side walls cut to form open slots with opposite angles at each end, the first channel having the slots with an angle that points up (10), while the second channel's slots (9) points down; each pair has a pair of rollers (3) that are engaged with their shoulders in the first and second channel's slots; and the screw assembly (4) passes through holes in each of the rollers, the screw assembly includes a screw, a nut (5) that is threaded in contact with the end of one of the rollers, a spring (6) held by a circlip (7) in a groove pushes against a face of the nut. The screw assembly used fastening a PCB can include several embodiments of a torque limiting clutch device.

Multiple-Axis Centrifugation Bucket For Centrifugal Transfer Between Microwell Plates

View page
US Patent:
61936421, Feb 27, 2001
Filed:
Jan 28, 2000
Appl. No.:
9/493463
Inventors:
Val Hristake - Maplewood NJ
Assignee:
Pharmacopeia, Inc. - Princeton NJ
International Classification:
B04B 502
US Classification:
494 20
Abstract:
An improved centrifugation bucket providing two axes of rotation for a pair of multi-well plates. The centrifugation bucket is adapted to be used with a centrifuge in order to effect material transfer between a pair of microwell plates. The centrifugation bucket comprises a yoke adapted to be attached to a rotor arm of a centrifuge, and a platform attached to the yoke. The yoke is adapted to be attached to the centrifuge by a hinge or hinges providing a primary axis of rotation and the platform is attached to the yoke by hinges or other connectors providing a secondary axis of rotation. Multi-well plates may be secured to the platform to allow transfer of materials between the plates. The primary axis of rotation is parallel to the direction of travel of the centrifugation bucket during centrifugation and the secondary axis of rotation is perpendicular to the direction of travel of the centrifugation bucket during centrifugation. The yoke and the platform are free to rotate in response to the forces of centrifugation such that the multi-well plates are nearly normal to the net force of centrifugation.
Val D Hristake from New Providence, NJ, age ~93 Get Report