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James J Bjordahl

from Arcadia, CA
Age ~90

James Bjordahl Phones & Addresses

  • 270 Camino Real Ave, Arcadia, CA 91007 (626) 445-0656
  • 1231 Juanita Ave, Glendora, CA 91740 (909) 394-2334
  • Baldwin Park, CA
  • Baldwin Park, CA
  • 1231 E Juanita Ave, Glendora, CA 91740

Work

Company: Ventura county community - Moorpark, CA 2002 Position: Bookstore operations assistant

Education

School / High School: Cuesta College- San Luis Obispo, CA 1988 Specialities: Business and Finance

Resumes

Resumes

James Bjordahl Photo 1

James Bjordahl Camarillo, CA

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Work:
Ventura County Community
Moorpark, CA
2002 to 2011
Bookstore Operations Assistant

Rite Aid
Ventura, CA
1994 to 2002
Managment

Builders Emporium
Irvine, CA
1983 to 1993
Assistant Manager - Sales

Education:
Cuesta College
San Luis Obispo, CA
1988 to 1989
Business and Finance

Pasadena City College
Pasadena, CA
1982 to 1985
Business

Publications

Us Patents

Method And Apparatus For Providing Constant Magnetic Tape Tension

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US Patent:
40931501, Jun 6, 1978
Filed:
Jun 13, 1977
Appl. No.:
5/805654
Inventors:
Donald L. Burdorf - Newport Beach CA
James Bjordahl - Arcadia CA
Assignee:
BASF Aktiengesellschaft - Ludwigshafen
International Classification:
G03B 104
G11B 1532
US Classification:
242192
Abstract:
An improved method and apparatus for generating constant tape or web tension in a transport system of the type wherein the supply and take-up reels are simultaneously driven by surface engagement with a capstan. Uniform tension is maintained throughout the entire tape pack by balancing the supply reel peripheral velocity rate of change occurring during the transport operation to the greater, but correspondingly sloped, take-up reel peripheral velocity rate of change. This balancing of the peripheral velocity of the supply and take-up reels is achieved through utilization of a constant braking system that combines the effects of torque and bias forces acting on the supply reel so as to produce constant tape tension in the take-up reel.

Automated Cassette Loader

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US Patent:
54693101, Nov 21, 1995
Filed:
Sep 29, 1992
Appl. No.:
7/953411
Inventors:
Richard T. Slocum - Aliso Viejo CA
James Bjordahl - Arcadia CA
Danny Louie - Monterey Park CA
Donald Rasmussen - Arcadia CA
Assignee:
WangDAT, Inc. - Irvine CA
International Classification:
G11B 1568
US Classification:
360 92
Abstract:
An automated cassette loader system includes a front loading tape drive mounted in a standard height enclosure with a removable magazine including cassettes stored in front to rear alignment in two levels. The cassettes are pushed between entry and exit positions by pushing one cassette out of a push position in one level and then pushing a cassette from a push position in the other level. The cassette pushed out of the magazine is transported to the front loading tape drive and, when removed therefrom, transported to the intake of the other level of the magazine.

Transducer Positioning Apparatus

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US Patent:
42754275, Jun 23, 1981
Filed:
Jan 23, 1978
Appl. No.:
5/871238
Inventors:
James Bjordahl - Arcadia CA
Assignee:
BASF Aktiengesellschaft - Rheinland-Pfalz
International Classification:
G11B 555
G11B 2110
G11B 2112
US Classification:
360106
Abstract:
Apparatus for accurately positioning a transducer head relative to parallel tracks on a recording medium such as magnetic tape. The apparatus includes a frame having a guide to direct the tape along a horizontal path past the transducer head, and a cam mounted for rotation on the frame. The cam has a cylindrically shaped upstanding portion in which a series of graduated planar steps is formed, each such step corresponding to a separate track on the tape. The apparatus further includes a lever having one end pivotally mounted to the frame and a remote end positioned to bear on one of the steps of the cam, and a platform assembly which carries the transducer head and which bears on a mid-portion of the lever. Rotation of the cam raises or lowers the remote end of the lever by a controllable number of steps, and thereby raises or lowers the transducer head by a corresponding but lesser amount, to align it with a selected track on the tape. Fine adjustment of the alignment of the transducer head with respect to the center of a track on the tape is accomplished by a mechanism for movement of the relative location of the pivoted end of the lever.

Method And Apparatus For Generating Constant Tape Tension In A Tape Transport Apparatus

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US Patent:
40492168, Sep 20, 1977
Filed:
May 6, 1975
Appl. No.:
5/574959
Inventors:
Donald L. Burdorf - Newport Beach CA
James Bjordahl - Arcadia CA
Assignee:
BASF Aktiengesellschaft - Ludwigshafen (Rhine)
International Classification:
G03B 104
G11B 1532
US Classification:
242192
Abstract:
A method of generating constant tape tension in a tape transport apparatus of the type in which the supply and take-up reels of tape are simultaneously driven by surface engagement with a driving capstan. The method involves the utilization of a flexible but relatively inelastic belt around the periphery of resilient capstan material to introduce reel size-related supply and take-up reel velocity adjustments to counteract the similar but opposite velocity adjustments which inherently occur through the use of a resilient capstan and which, if uncompensated, result in undesirable tension variations during the course of the tape transporting operation.

Front Panel For A Magazine-Loading Tape Drive Assembly

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US Patent:
56662521, Sep 9, 1997
Filed:
Jul 22, 1994
Appl. No.:
8/279306
Inventors:
James Bjordahl - Arcadia CA
International Classification:
G11B 3302
US Classification:
360137
Abstract:
A front panel for a magazine-loading DAT drive assembly having a tape cassette drive unit above a magazine receiving area is provided with two hinged doors. By orienting two pairs of abutments in opposite directions and positioning two springs such that they exert opposite torques on their respective pairs of abutments, the door will be biased to its closed position regardless of whether it has been swung in one direction to its loading position, or in the other direction to its unloading position.

Air Guide For Tape Transports Having Air Jets At Tangent Points

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US Patent:
43055362, Dec 15, 1981
Filed:
Jul 18, 1980
Appl. No.:
6/170963
Inventors:
Donald L. Burdorf - Newport Beach CA
James Bjordahl - Arcadia CA
Assignee:
BASF Aktiengesellschaft - Ludwigshafen
International Classification:
B65H 1732
B65H 2324
US Classification:
226 1
Abstract:
An apparatus for guiding a span of high-speed magnetic recording tape past a recording/transducing head. Low volume pressurized air is utilized to lift the tape off of the guide assembly thereby eliminating sliding friction between the apparatus and the tape. The periphery of the guide is provided with a means to facilitate the formation of an air seal with the edges of the tape thereby substantially isolating the pressurized air from the atmosphere. Air jets are provided at the tangent points where the tape enters and departs from the air guide so as to prevent the tape from touching any portion of the guide during the transport operation. The pressurized air emitted from the air jets located at the tangent point where the tape enters the guide forms a supporting boundary layer of air along the surface of the tape which is carried along by the tape across the guide.

Transducer Positioning Device

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US Patent:
41445490, Mar 13, 1979
Filed:
Nov 21, 1977
Appl. No.:
5/853397
Inventors:
Donald L. Burdorf - Newport Beach CA
James Bjordahl - Arcadia CA
Roger S. Kincel - Whittier CA
Harold E. Arns - Chino CA
Assignee:
BASF Aktiengesellschaft - Ludwigshafen
International Classification:
G11B 2108
US Classification:
360 78
Abstract:
The present invention relates generally to a transducer positioning and adjusting apparatus and, more particularly, to an improved system for accurately and reproducibly positioning a transducer head in vertical relationship to a series of parallel horizontal tracks on a recording medium such as magnetic video tape. The apparatus comprises a frame upon which the elements of the system are mounted and with respect to which they are vertically aligned. A cam having a plurality of horizontally planar steps formed about its upper surface is rotatably mounted upon said frame and a vertically moveable bearing post, which is secured at one end to the transducer head, is held in continuous contact with the stepping surfaces formed on the cam. A ball bearing which contacts the underside of the cam substantially beneath the stepping surface upon which the bearing post is held in contact is utilized to support the cam on the mounting frame and maintain said stepping surface in precise vertical alignment therewith. A horizontally slidable wedge mounted on said frame upon which the cam supporting ball bearing rides may be utilized to vertically adjust said cam bearing post with respect to the mounting frame.
James J Bjordahl from Arcadia, CA, age ~90 Get Report