Frederic P Berg

US Patent:

6558235, May 6, 2003

Filed:

Mar 13, 2001

Appl. No.:

09/805542

Inventors:

Frederic P. Berg - Seattle WA
Karl J. Schaefer - Everett WA

Assignee:

The Boeing Company - Seattle WA

International Classification:

B24B 2300

US Classification:

451 41, 451357

Abstract:

An ergonomic sander handle for clamping onto a sanding device so that the ergonomic handle can be comfortably gripped by a worker and used to apply the sanding device to a surface, is provided. The ergonomic handle includes an elongate body, a clamp head and a bearing. The elongate body is typically a cylindrical aluminum tube with padding for easy and comfortable gripping. One end of the elongate body is attached the clamp head that attaches to the sanding device. The other end of the elongate body is attached to the bearing which may include a pair of roller balls. To sand a surface, the worker grips the elongate body in a power grip (without significant wrist flexion or deviation) and applies pressure to urge sanding device and the bearing onto the surface. The power grip minimizes loads on the wrist and hand which reduces the likelihood of musculoskeletal trauma.

US Patent:

6823709, Nov 30, 2004

Filed:

Aug 6, 2002

Appl. No.:

10/214049

Inventors:

David H. Dowell - Redwood City CA
Philip E. Johnson - Auburn WA
Frederic P. Berg - Seattle WA
George A. Perry - Federal Way WA

Assignee:

The Boeing Company - Chicago IL

International Classification:

B21J 1524

US Classification:

72430, 72 54, 2924353, 29715

Abstract:

A rivet gun system includes a rivet gun frame having two ends. A die is coupled to one end, and a force sensor coupled to the rivet gun frame. The force sensor detects force applied to the die and generates a force signal in response to the force. A holding coil defines a channel within the rivet gun frame and generates an electromagnetic force along the channel. The channel includes an end defined by an end stop and an end defined by the die. A main coil further defines the channel between the holding coil and the die. The main coil also generates an electromagnetic force along the channel. A plunger slides through the channel in response to the electromagnetic forces. A force sensor electronics controller receives the force signal from the force sensor and activates the holding coil and the main coil in response to the force signal above an activation threshold.

US Patent:

6954127, Oct 11, 2005

Filed:

Feb 28, 2003

Appl. No.:

10/377487

Inventors:

Frederic P. Berg - Seattle WA, US
David B. Smith - Renton WA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

H01F027/28

US Classification:

335223, 72 56, 72705

Abstract:

An electromagnet assembly for supplying a region of concentrated electromagnetic flux is provided. The assembly includes a flat strip of an electrically conductive metal. The strip has a first and a second opposite planar surfaces at least one of which is covered by a dielectric material. The strip has first and second end portions. The strip is wound in a coil including at least one first loop and one second loop and disposing the second opposite planar surface in the first loop substantially adjacent the first opposite planar surface in the second loop. The coil is disposed about an axis of symmetry configured to concentrate electromagnetic flux at a midpoint on the axis of symmetry. First and second electrical terminals are connected at the first and second end portions, respectively.

US Patent:

7078993, Jul 18, 2006

Filed:

Jul 29, 2005

Appl. No.:

11/192783

Inventors:

Frederic P. Berg - Seattle WA, US
David B. Smith - Renton WA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

H01F 3/00

US Classification:

335299, 336226, 336232, 72 56

Abstract:

An electromagnet assembly for supplying a region of concentrated electromagnetic flux is provided. The assembly includes a flat strip of an electrically conductive metal. The strip has a first and a second opposite planar surfaces at least one of which is covered by a dielectric material. The strip has first and second end portions. The strip is wound in a coil including at least one first loop and one second loop and disposing the second opposite planar surface in the first loop substantially-adjacent the first opposite planar surface in the second loop. The coil is disposed about an axis of symmetry configured to concentrate electromagnetic flux at a midpoint on the axis of symmetry. First and second electrical terminals are connected at the first and second end portions, respectively.

US Patent:

7104342, Sep 12, 2006

Filed:

Sep 29, 2004

Appl. No.:

10/953636

Inventors:

Frederic P. Berg - Seattle WA, US

International Classification:

B24B 49/00

US Classification:

173 1, 173 2, 173 49, 451 5, 451357

Abstract:

A system for active dynamic balancing of a rotating tool driven by a motor having a shaft supported by a first and second bearing on opposing sides of the motor includes an acceleration sensing assembly configured to sense radial accelerations on the shaft producing an acceleration signal indicative of the radial accelerations. A correcting mass assembly is configured to rotate with the shaft and to move at least one mass radially to the shaft responsive to a correcting signal. A controller is configured to receive the acceleration signal generating a correcting signal by means of a closed loop iterative algorithm.

US Patent:

7114242, Oct 3, 2006

Filed:

May 5, 2006

Appl. No.:

11/381956

Inventors:

Frederic P. Berg - Seattle WA, US
David B. Smith - Renton WA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

H01F 3/00
H01F 41/06

US Classification:

29605, 335299

Abstract:

Methods of fabricating electromagnet assemblies are disclosed. In one embodiment, a includes forming a first helix and a second helix, each helix having a first end and a second end and a substantially oval cross-section, the cross-section having a major axis, each helix being configured to concentrate electromagnetic flux at a midpoint on the major axis. Each helix is bent at an angle and offset from the major axis, resulting in a first planar surface including the major axis and a second planar surface. The first and second helixes are oriented such that the outer edges of the respective second planar surfaces coincide and the outer edges of the respective first planar surfaces are in diametric opposition. The first and second helixes are affixed by their respective second planar surfaces, and electrically connected by their respective second ends.

US Patent:

7204320, Apr 17, 2007

Filed:

Aug 1, 2006

Appl. No.:

11/461744

Inventors:

Frederic P. Berg - Seattle WA, US

International Classification:

B24B 49/00

US Classification:

173 2, 173 49, 173217, 173171, 451 5, 451357

Abstract:

A system for active dynamic balancing of a rotating tool driven by a motor having a shaft supported by a first and second bearing on opposing sides of the motor includes an acceleration sensing assembly configured to sense radial accelerations on the shaft producing an acceleration signal indicative of the radial accelerations. A correcting mass assembly is configured to rotate with the shaft and to move at least one mass radially to the shaft responsive to a correcting signal. A controller is configured to receive the acceleration signal generating a correcting signal by means of a closed loop iterative algorithm.

US Patent:

7476287, Jan 13, 2009

Filed:

Jun 17, 2005

Appl. No.:

11/155709

Inventors:

Frederic P. Berg - Seattle WA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B32B 37/00

US Classification:

156155, 156 91, 156 92, 156247, 156344

Abstract:

A soluble rivet tape is provided. The tape includes a soluble film and an adhesive coating that is applied to one or more sections of the soluble film. A plurality of rivets are inserted into place on a product, such as an airplane. The soluble rivet tape is applied to the product over the placed rivets. The plurality of rivets are set and the soluble rivet tape is removed. Any remaining rivet tape on the product is dissolved during a washing process.