David L Parks

US Patent:

7425368, Sep 16, 2008

Filed:

Jul 12, 2005

Appl. No.:

11/179102

Inventors:

Mary C. Boyce - Winchester MA, US
David M. Parks - Pembroke MA, US
Bin Chen - Stuttgart, DE

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

D02G 3/00

US Classification:

428372

Abstract:

Filler-enhanced polymeric fiber. High aspect ratio filler particles are placed into intimate contact during processing with a polymeric fiber. The filler particles serve as templates to orient the molecular structure of the polymeric fiber to enhance mechanical properties. The highly oriented molecular morphology results in enhanced axial stiffness and strength.

US Patent:

20210375067, Dec 2, 2021

Filed:

Aug 16, 2021

Appl. No.:

17/403620

Inventors:

- San Francisco CA, US
Avery Lauren Orman - Cambridge MA, US
David Parks - Pflugerville TX, US
Richard Benjamin Trent Nelson - Concord CA, US

International Classification:

G06T 19/20
G06T 13/40
G06T 17/20

Abstract:

A computing system and method to generate an avatar wearing a piece of clothing. Given a generic clothing model acquired for the avatar, the system generates a customized clothing model based on uniformly scaling the generic clothing model according to a size of the avatar, identifies one or more edges or boundaries of the clothing, deforms a clothing mesh of the scaled clothing model at the one or more edges by stretching and/or shrinking the edges, and performs a physical simulation of fitting the deformed clothing model on the avatar to generate a fitted clothing model for the avatar. User interfaces can be optionally provided to interactively adjust the scaling, deforming, and/or physical simulation of the clothing models.

US Patent:

20180315253, Nov 1, 2018

Filed:

Apr 28, 2017

Appl. No.:

15/581600

Inventors:

- San Francisco CA, US
Avery Lauren Orman - Cambridge MA, US
David Parks - Pflugerville TX, US
Richard Benjamin Trent Nelson - Concord CA, US

International Classification:

G06T 19/20
G06T 13/40
G06T 7/13
G06T 3/40
G06T 17/20

Abstract:

A computing system and method to generate an avatar wearing a piece of clothing. Given a generic clothing model acquired for the avatar, the system generates a customized clothing model based on uniformly scaling the generic clothing model according to a size of the avatar, identifies one or more edges or boundaries of the clothing, deforms a clothing mesh of the scaled clothing model at the one or more edges by stretching and/or shrinking the edges, and performs a physical simulation of fitting the deformed clothing model on the avatar to generate a fitted clothing model for the avatar. User interfaces can be optionally provided to interactively adjust the scaling, deforming, and/or physical simulation of the clothing models.

US Patent:

20180315254, Nov 1, 2018

Filed:

Apr 28, 2017

Appl. No.:

15/582273

Inventors:

- San Francisco CA, US
Avery Lauren Orman - Cambridge MA, US
David Parks - Pflugerville TX, US
Richard Benjamin Trent Nelson - Concord CA, US

International Classification:

G06T 19/20
G06T 13/40
G06T 7/13
G06T 3/40
G06T 17/20
G06T 15/04

Abstract:

A computing system and method to generate an avatar wearing multiple layers of clothing. For each clothing model acquired for the avatar, the system generates a customized clothing model based on transforming the original clothing model for fitting on the avatar based on deforming and physical simulation and a reduced clothing model based on collapsing the customized clothing model on the body of the avatar such that applying the reduced clothing model is simplified as painting the texture of the reduced clothing model onto the avatar model. Wearing the inner layers of the clothing by avatar is computed by applying the texture of the corresponding reduced clothing model on the body of the avatar in a sequence from inside layers to outside layers. The customized clothing model of the outermost layer is combined with the avatar wearing the inner layers to generate the avatar wearing the multiple layers of clothing.

US Patent:

20170080637, Mar 23, 2017

Filed:

May 20, 2015

Appl. No.:

15/312446

Inventors:

- Cambridge MA, US
David Moore Parks - Pembroke MA, US
Bernhardt Levy Trout - Lexington MA, US
Alexander H. Slocum - Bow NH, US

Assignee:

Massachusetts Institute to Technology - Cambridge MA

International Classification:

B29C 65/02
B29C 65/00

Abstract:

Methods and apparatuses for bonding polymeric parts are disclosed. Specifically, in one embodiment, the polymeric parts are bonded by plastically deforming them against each other while they are below the glass transition temperatures. A method includes: placing a first polymeric part in contact with a second polymeric part; and plastically deforming the first polymeric part and the second polymeric part against each other to bond the first polymeric part to the second polymeric part. Additionally, during the plastic deformation, a temperature of the first polymeric part is less than a glass transition temperature of the first polymeric part and a temperature of the second polymeric part is less than a glass transition temperature of the second polymeric part.

US Patent:

20160327471, Nov 10, 2016

Filed:

Apr 27, 2016

Appl. No.:

15/139888

Inventors:

- Cambridge MA, US
David M. Parks - Pembroke MA, US

International Classification:

G01N 19/04

Abstract:

T-peel test fixture for a vertical test machine. The test fixture includes an upper grip for holding an arm of a peel specimen that has a hangover tail and a lower grip for holding the other arm of the peel specimen. A first rack is connected to a support hanger. The upper grip and the first rack move in a vertical direction at a selected speed. A second rack including a support plate located to support the specimen hangover tail is driven in the vertical direction at one-half the selected speed. The fixture thus supports the hangover tail so that symmetry is maintained with respect to gravity to suppress the interfering effect of gravity on a peel test.