Patent · US Active

Door closure assist assemblies

US7815233B2 · kind B2 · utility

2Cited by

20References

9Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Christopher P. Henry · Thousand Oaks, US
William Barvosa-Carter · Ventura, US
Alan L. Browne · Grosse Pointe, US
Cameron Massey · Hawthorne, US
Nancy L. Johnson · Northville, US

Key dates

Filing date	Jan 10, 2008
Grant date	Oct 19, 2010
Priority date	—
Expiry date	Jan 10, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T292/11
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Door closure assist assemblies that assist in providing a final closing motion generally includes an extender portion comprised of an active material adapted to linearly expand in response to an activation signal and a releasable fastener having one component in movable communication with the extender portion and a second component attached to the other selected one of the door and doorframe. During operation, the door closure assist assembly provides the final closing action.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.