David John Hunter

US Patent:

7959292, Jun 14, 2011

Filed:

Mar 27, 2007

Appl. No.:

12/294120

Inventors:

David G. Hunter - Wayland MA, US
Nadezhda V. Piskun - Sudbury MA, US

Assignee:

Children's Medical Center Corporation - Boston MA

International Classification:

A61B 3/00

US Classification:

351246, 351201, 351202, 351209

Abstract:

Generally, the present invention relates to medical devices and a method of vision screening, and more particularly to a pediatric vision screening system and method thereof that identifies a risk factor for amblyopia or diagnoses amblyopia by measurement of microstrabismus. An embodiment of the invention is directed to a method of patient screening for risk factors for amblyopia which includes the steps of illuminating the eye with polarized light, scanning the polarized light about the eye, capturing the retro-reflected light emanating back from the eye, analyzing the retro-reflected light to determine ocular misalignment; and calculating a metric to determine if the patient passes or fails the screening test thereby providing an indication that the patient may have a risk of amblyopia based on either strabismus or anisometropia. The method is effective at detecting amblyopia related to focusing problems without the measuring the focus of the eye directly.

US Patent:

20160375995, Dec 29, 2016

Filed:

Dec 4, 2013

Appl. No.:

15/101762

Inventors:

- Startford CT, US
Eric Lucien NUSSENBLATT - Stamford CT, US
Bryan Kenneth BASKIN - Arlington TX, US
David H. HUNTER - Cheshire CT, US

International Classification:

B64C 27/32
B64C 27/10

Abstract:

A rotor hub assembly is provided including an open rotor hub having a base plate and a plurality of rotor members mounted about a circumference of the base plate. The rotor members are configured to form a plurality of rotor blade openings between adjacent rotor members, and a central opening between all of the rotor members. A plate includes a central body portion and a plurality of arms. Each of the plurality of arms is configured to mount to one of the plurality of rotor members such that the central body portion is generally positioned within the central opening of the open rotor hub.

US Patent:

20160176521, Jun 23, 2016

Filed:

May 1, 2015

Appl. No.:

14/702081

Inventors:

- Stratford CT, US
Eric Lucien Nussenblatt - Stamford CT, US
Justin Thomas - New Haven CT, US
Ryan Thomas Casey - San Diego CA, US
David H. Hunter - Cheshire CT, US

International Classification:

B64C 27/473
B64C 27/04
B64C 27/12
B64C 27/33
B64C 27/48

Abstract:

A rotor blade assembly includes a flex-beam member and a torque tube surrounding the flex-beam member and extending partially along a rotor blade assembly length. A rotor blade surrounds the flex beam member and extends from the torque tube to a blade tip. A connecting assembly secures the rotor blade and the torque tube at the flex-beam member. The connecting assembly includes a first connecting member extending at least partially into the rotor blade assembly through the rotor blade from a first rotor blade side and a second connecting member located at a second rotor blade side. A clamping load between the first connecting member and the second connecting member secures the rotor blade and torque tube to the flex-beam member.

US Patent:

20150158573, Jun 11, 2015

Filed:

Dec 5, 2013

Appl. No.:

14/097478

Inventors:

- Stratford CT, US
Eric L. Nussenblatt - Stamford CT, US
Ryan T. Casey - San Diego CA, US
Eric S. Parsons - New Haven CT, US
David H. Hunter - Cheshire CT, US

Assignee:

Sikorsky Aircraft Corporation - Stratford CT

International Classification:

B64C 1/00

Abstract:

A method of forming an in-wing device-retention assembly includes inserting a first plate into a wing, the wing having a wide end and a narrow end. The method includes inserting a second plate into the wing, inserting a wedge plate into the wing and positioning the wedge plate between the first plate and the second plate, and applying a force to the wedge plate in a direction toward the narrow end to fix the first plate, the second plate and the wedge plate within the wing.

US Patent:

20140286774, Sep 25, 2014

Filed:

Mar 20, 2013

Appl. No.:

13/847702

Inventors:

- Stratford CT, US
Eric Lucien Nussenblatt - Stamford CT, US
Eric S. Parsons - New Haven CT, US
Ryan Thomas Casey - San Diego CA, US
David H. Hunter - Cheshire CT, US

Assignee:

SIKORSKY AIRCRAFT CORPORATION - Straford CT

International Classification:

B64C 27/33

US Classification:

416131, 298896

Abstract:

A spar for a rotor blade assembly is provided including a generally hollow tubular body. A spacer protrudes from at least one surface of the body along a length of the body. A hole extends through the body and the spacer. The hole is configured to align with a through hole in an adjacent flexbeam assembly. The spacer is configured to contact a surface of the adjacent flexbeam assembly to create a match fit between the body and the flexbeam assembly.