John David Peck

US Patent:

60507780, Apr 18, 2000

Filed:

Sep 24, 1998

Appl. No.:

9/160449

Inventors:

Francis H. McArdle - Norristown PA
Thomas W. Griffith - The Villages FL
George H. Thompson - Gloucester NJ
John H. Peck - Boothwyn PA
Helene G. McArdle - Norristown PA

Assignee:

The Boeing Company - Seattle WA

International Classification:

B64C 2751

US Classification:

416107

Abstract:

A semi-articulated stiff-in-plane (SASTIP) rotor hub is provided. The hub includes a cylindrical composite shell (12). A plurality of flexure mount assemblies (16) are positioned around the periphery of the hub shell. Each flexure mount assembly includes both an upper and a lower flexure (64), (66). The outboard ends of the upper and lower flexures attach to an outboard bearing support (34). The inboard end of each flexure is maintained within first and second clamp plates (76), (78) that are mounted within hub flexure openings (38), (40). The flexure clamp plates (76), (78) additionally attach circumferentially to annular CF rings (24), (26), (28), (30) positioned within the hub shell. A blade shaft (14) extends through the outboard bearing (72) and connects to a spindle. The spindle is supported by a spherical bearing that is mounted within the hub shell (12) at a circular spindle hole.

US Patent:

20230116665, Apr 13, 2023

Filed:

Dec 21, 2021

Appl. No.:

17/645336

Inventors:

- San Jose CA, US
Martin H. MUENDEL - Oakland CA, US
Richard D. FAULHABER - San Carlos CA, US
Alex HATCHER - San Jose CA, US
John PECK - San Jose CA, US

International Classification:

G02B 6/02
G02B 6/028
G02B 6/42

Abstract:

An in-fiber beam scanning system may comprise an input fiber to provide a beam, a feeding fiber comprising an imaging bundle with multiple cores embedded in a first cladding that is surrounded by a second cladding, and an in-fiber beam shifter that comprises a first multibend beam shifter coupled to the input fiber, a graded index fiber following the first multibend beam shifter, and a second multibend beam shifter following the graded index fiber and coupling into the feeding fiber. In some implementations, the first multibend beam shifter is actuated by a first amount and the second multibend beam shifter is actuated by a second amount to shift the beam in two dimensions and deliver the beam into one or more target cores in the imaging bundle.

US Patent:

20230094713, Mar 30, 2023

Filed:

Dec 16, 2021

Appl. No.:

17/644610

Inventors:

- San Jose CA, US
Martin H. MUENDEL - Oakland CA, US
Richard D. FAULHABER - San Carlos CA, US
Alex HATCHER - San Jose CA, US
John PECK - San Jose CA, US

International Classification:

B23K 26/06
G02B 6/42
G02B 6/02
G02B 6/028

Abstract:

An optical assembly may comprise an input fiber to provide a beam, a process fiber comprising a ring-shaped outer core surrounded by a cladding, and a first beam shifter arranged to receive the beam from the input fiber and to shift the beam spatially to illuminate the ring-shaped outer core of the process fiber. The optical assembly may further comprise a second beam shifter arranged to receive the beam from the first beam shifter and to add skew to the beam that is launched into the ring-shaped outer core of the process fiber.