DR. DAVID BURTON LUND, PSY.D.
Social Work at 43 St, Minneapolis, MN

4661668, Apr 28, 1987

Oct 1, 1985

6/782477

William E. Mullane - Warren OH
David Lund - Minneapolis MN

The Taylor-Winfield Corporation - Warren OH

H05B 610

219 1041

In a storage battery having a plurality of electrically insulating vertical partitions, the method of the invention comprises sandwiching each partition, successively, between a pair of terminals of lead or other easily fusible material of the so-called "tombstone" type, that is, of "L" shape in which the vertical or riser portion of one terminal has a horizontal pin which extends through a hole in the partition and through a hole in the riser portion of the other terminal. An insulating sheet and induction coil are placed against the end of the pin by a fusing apparatus which is provided with a pair of arms which are pivotally operated by a fluid cylinder, one arm carrying the above-mentioned coil and insulating sheet and the other acting as a pusher. The terminal pairs and partition are squeezed together by said arms and thereafter induction current is applied to the coil to fuse the perimetrical portion of the pin and surrounding surface of the hole of the other terminal so as to fill the void therebetween and form a solid intercell connection.

6008480, Dec 28, 1999

Feb 13, 1997

8/799294

David L. Lund - Minneapolis MN

GNB Technologies, Inc. - Mendota Heights MN

H05B 610

219633

An induction heating method and apparatus for simultaneously and efficiently fusing battery cell terminal posts and bushings in a battery production line. The apparatus includes an induction heating generator having a T-shaped bus bar for symmetrically supporting a plurality of pairs of induction heating coils, with one coil of each pair being supported on the forward side of a transverse bus bar section and the other coil of each pair being supported on a rear side of the transverse bus bar section. The coils each have respective mounting structures for permitting individual vertical adjustment of the coil with respect to the bus bar to enable uniform positioning of the coils with respect to a plurality of bushings and terminal posts for effecting uniform depth fusion of the plurality of posts and bushings. The induction heating coils define a water flow path through which cooling water is circulated during the fusion operation, while efficiencies and symmetries in the bus bar design enable it to support and conduct current to the respective coils without water cooling.

5512065, Apr 30, 1996

Oct 12, 1993

8/135053

William H. Kump - St. Paul MN
James K. Klang - Rosemount MN
David L. Lund - Minneapolis MN
Jeffrey M. Henning - Eagan MN

GNB Battery Technologies Inc. - Mendota Heights MN

H01M 1014

296231

A method of fabricating a modular, recombinant lead-acid battery is provided for. The method includes providing a plurality of thermoplastic frames, including at least two frames which support electrochemically active plates. The frames are adapted to be stacked and welded together such that the plates are spaced apart from each other a predetermined distance. One or more separators also are provided. The separators have an uncompressed state in which their thickness is equal to or greater than the predetermined distance between plates and a compressed state. The frames and separators are stacked such that a separator is disposed between adjacent plates in its compressed state. The frames then are successively vibration welded together, again while the separator is in its compressed state. The separator has a predetermined thickness in its compressed state effective to reduce damage to the separator caused by abrasion of the separators by the plates during vibration welding. The separator also tends to assume its uncompressed state in the presence of electrolyte so that the separator contacts the plates upon completion of the battery.

5834743, Nov 10, 1998

Nov 19, 1996

8/752059

David L. Lund - Minneapolis MN
Charles J. DiMarco - Kansas City MO

GNB Technologies, Inc. - St. Paul MN

H05B 610, H01M 224

219633

An apparatus and method for fusing intercell connectors to battery cell terminal posts. The apparatus includes inexpensive, non-metallic molds, each having a mold opening and being positionable onto a connector with the mold opening in aligned relation to a terminal post positioned in a connector opening for defining a mold cavity adjacent an end of the terminal post and the connector opening. A selectively positionable induction heating head is provided for locating an induction heating coil in predetermined spaced relation to a terminal post and connector to be fused such that generation of a high frequency, oscillating current in the coil causes melting and fusion of the terminal post and connector with the mold retaining and forming the molten lead. The induction heating head may be manually positionable for use with batteries with different post locations and orientations and includes safety and position locating features.

5886325, Mar 23, 1999

Dec 18, 1996

8/813233

David L. Lund - Minneapolis MN

GNB Technologies, Inc. - Mendota Heights MN

H05B 604

219661

An induction heating generator is disclosed. The generator controls the power delivered to a work coil via a plurality of resistor/bias control switches coupled in parallel and a controller, thereby eliminating the expensive and difficult to troubleshoot SCR control circuits associated with prior art generators. By sequentially switching the bias control switches, the controller can progressively lower the input voltage to a controlled switch to thereby alter its conducting state to provide stepped power increases to the work coil. The work coil is de-energized by opening the bias control switches in reverse sequential order.

5836371, Nov 17, 1998

Dec 30, 1996

8/774769

William H. Kump - West St. Paul MN
David L. Lund - Minneapolis MN
Charles J. DiMarco - Kansas City MO

GNB Technologies, Inc. - St. Paul MN

B22D 2306, B22D 1900, H01M 600

164 80

A method and apparatus for more efficiently fusing the straps of pre-formed terminal post members with plate lugs of a battery plate group utilizing a non-reusable, inexpensive plastic mold insert. The method includes positioning the battery plate group into an open top container with the lugs of the positive plates in one row and the lugs of the negative plates in another row, positioning the plastic insert into the container with the lugs of the plate group extending upwardly through the mold insert, positioning the terminal post members on the plastic mold insert with fingers of the straps thereof disposed between plate lugs of the respective rows, supplying additional unmelted lead into remaining spaces between the plate lugs, and heating, melting, and fusing the plate lugs, strap fingers, and added lead by induction heating to form interconnections between the positive and negative plates in the respective terminals.

5470679, Nov 28, 1995

May 20, 1994

8/246730

David L. Lund - Minneapolis MN
William H. Kump - West St. Paul MN
Donald W. Groff - Eagan MN

GNB Battery Technologies Inc. - Mendota Heights MN

H01M 414

429210

A method of assembling a bipolar lead-acid battery includes assembling the electrochemical components necessary to provide the necessary voltage and capacity, maintaining the electrochemical components under the desired compression and then sealing such electrochemical components as a unit utilizing various assembly components. The resulting bipolar battery in the preferred embodiment includes an electrolyte fill/vent box that seals the top of the electrochemical component unit and a vacuum box that seals the bottom surface.

5018779, May 28, 1991

Oct 17, 1989

7/420655

David M. Lund - Coon Rapids MN

Lund Industries, Incorporated - Minneapolis MN

B62D 3500

2961801

A streamlined truck cab fairing (15) for use with a pickup truck which may be mounted on the truck cab (1) without interfering with the operation of a truck bed cover. The fairing (15) includes a left panel (17) a central member (16) and a right panel (18), the lower edges (20,22) of the fairing (15) being remotely spaced from the sidewalls (14) of the truck bed, thereby forming a gap (59) through which a sheetlike cover may pass to completely seal off the truck bed region. A plurality of air inlets (29,30,31) cost the relative wind to create a reaction force pressing the fairing (15) towards the truck. A side panel reinforcing member (48) is used to reduced vibration of the fairing side panels (17,18).