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James Stephen Petrek

from Danville, CA
Age ~73
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Also known as:
James S Petrek, James Te Petrek, James Tr Petrek, Jim S Petrek, James Stephen Petrick
Phone and address:
365 Conway Dr, Danville, CA 94526
(925) 820-8859
Related to:
Toby A SpanierHannah E Petrek, 33Sarah R Petrek, 36Gail S Petrek, 74
Connected to:
Cameron A Petrek, 54Charles M Petrek, 87Frank P Petrek, 68John Petrek, 71Passard Petrel, 37Abby A Petrelius, 39Michael A Petrelis, 66Rebecca F Petrelis, 42Benedetto Petrella, 93Carole A Petrello, 67

James Petrek Phones & Addresses

  • 365 Conway Dr, Danville, CA 94526 (925) 820-8859
  • 356 Conway Dr, Danville, CA 94526
  • Albany, CA
  • 365 Conway Dr, Danville, CA 94526 (530) 298-1117

Work

Position: Building and Grounds Cleaning and Maintenance Occupations

Education

Degree: High school graduate or higher

Business Records

Name / Title
Company / Classification
Phones & Addresses
James Petrek
Vice President
Rainin Instrument LLC
Biotechnology · Sale Of Lab Equipment · Medical Supplies · Mfg Measure/Control Dvcs Mfg Lab Apparatus/Furn Mfg Process Cntrl Instr · Nonclassifiable Establishments · Laboratory Apparatus and Furniture Manufacturing · Other Professional Equipment and Supplies Merchant Wholesale · Laboratory Equipment & Supplie
7500 Edgewater Dr, Oakland, CA 94621
7500 Edgewater Dr   , Oakland, CA 94621
Rainin Rd - BOX 4026, Woburn, MA 01888
(510) 564-1600, (510) 564-1617, (800) 472-4646, (510) 564-1757

Publications

Us Patents

Volume Adjustable Manual Pipette With Quick Set Volume Adjustment

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US Patent:
6428750, Aug 6, 2002
Filed:
Apr 13, 2000
Appl. No.:
09/548439
Inventors:
Kenneth Rainin - Piedmont CA
Phillip Yee - San Francisco CA
William D. Homberg - San Francisco CA
James S. Petrek - Danville CA
Assignee:
Rainin Instrument, LLC - Oakland CA
International Classification:
B01L 302
US Classification:
422100, 436180, 7386401, 7386411, 7386413, 7386414, 7386416, 7386418, 7386332, 222154
Abstract:
A volume adjustable manual pipette having a hand-holdable housing supporting (i) an electronic digital display and associated position sensing and control circuitry, (ii) a plunger unit and (iii) a quick set volume adjustment mechanism for simultaneously controlling the volume setting of the pipette and the electronic display, the quick set volume adjustment mechanism comprising a pipette volume setting member for limiting upward movement of the plunger unit within the housing to define the volume setting for the pipette and the volume setting member being supported for axial movement on the plunger unit and releasably secured relative to the housing by a pipette user operable locking mechanism. When released from the housing, the volume setting member is axially moveable on and with the plunger unit to quickly set the volume for the pipette. When secured to the housing, the plunger unit is axially moveable relative to the volume setting unit to aspirate and dispense the selected volume of liquid into and from a pipette tip extending from a lower end of the housing.

Pipette Tip

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US Patent:
D461904, Aug 20, 2002
Filed:
Nov 9, 2001
Appl. No.:
29/153061
Inventors:
James S. Petrek - Danville CA
Assignee:
Rainin Instrument, LLC - Oakland CA
International Classification:
2402
US Classification:
D24222

Pipette Tip

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US Patent:
D468024, Dec 31, 2002
Filed:
Dec 22, 2001
Appl. No.:
29/152660
Inventors:
James S. Petrek - Danville CA
Assignee:
Rainin Instrument, LLC - Oakland CA
International Classification:
2402
US Classification:
D24222

Pipette Tip

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US Patent:
D468440, Jan 7, 2003
Filed:
Dec 22, 2001
Appl. No.:
29/152627
Inventors:
James S. Petrek - Danville CA
Assignee:
Rainin Instrument, LLC - Oakland CA
International Classification:
2402
US Classification:
D24222

Pipette Tip

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US Patent:
D468832, Jan 14, 2003
Filed:
Dec 22, 2001
Appl. No.:
29/152626
Inventors:
James S. Petrek - Danville CA
Assignee:
Rainin Instrument, LLC - Oakland CA
International Classification:
2402
US Classification:
D24222

Pipette With Improved Pipette Tip And Mounting Shaft

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US Patent:
6568288, May 27, 2003
Filed:
Jun 29, 2001
Appl. No.:
09/895745
Inventors:
Kenneth Rainin - Piedmont CA
James S. Petrek - Danville CA
Assignee:
Rainin Instrument, LLC - Oakland CA
International Classification:
G01N 100
US Classification:
7386416
Abstract:
An air displacement pipette having axially spaced annular sealing and substantially cylindrical lateral support zones and regions on the pipettes mounting shaft and tip, respectively, in combination with means for insuring uniform depth of mounting shaft penetration into the pipette tip to maintain uniform tip interference with the mounting shaft as successive tips are mounted on and ejected from the mounting shaft whereby the pipette tip is easily and firmly mountable on and easily ejectable from the pipette tip mounting shaft by the application of axial mounting and ejection forces of about two pounds and one pound, respectively.

Ergonomic Return Springless Manual Air Displacement Pipette

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US Patent:
6645433, Nov 11, 2003
Filed:
Mar 4, 2002
Appl. No.:
10/090924
Inventors:
William D. Homberg - Oakland CA
James S. Petrek - Danville CA
Kenneth Rainin - Piedmont CA
Assignee:
Rainin Instrument, LLC - Oakland CA
International Classification:
B01L 302
US Classification:
422100, 7386413, 7386416, 7386418
Abstract:
An ergonomic, manually precisely controllable return springless air displacement pipette relying upon the friction of a piston seal to maintain a plunger unit of the pipette in any axial location established by a user of the pipette.

Pipette With Improved Pipette Tip Mounting Shaft

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US Patent:
6737023, May 18, 2004
Filed:
Oct 6, 2000
Appl. No.:
09/680854
Inventors:
Christopher Kelly - Larkspur CA
James S. Petrek - Danville CA
Kenneth Rainin - Piedmont CA
Steven T. Nielsen - Los Gatos CA
Assignee:
Rainin Instrument, LLC - Oakland CA
International Classification:
B01L 302
US Classification:
422100, 7386401, 7386414, 422 99
Abstract:
An air displacement pipette having axially spaced annular sealing and substantially cylindrical lateral support zones on the outer surface of the pipettes mounting shaft for mating with axially spaced annular sealing and substantially cylindrical lateral support regions on the inner surface of a pipette tip, whereby the pipette tip is easily and firmly mountable on and easily ejectable from the pipette tip mounting shaft by the application of minimal axial mounting and ejection forces.
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James Stephen Petrek from Danville, CA, age ~73 Get Report