The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2011
Filed:
Jul. 07, 2006
John E. Walsh, Iii, Wallingford, CT (US);
John E. Walsh, III, Wallingford, CT (US);
Harrow Products LLC, Montvale, NJ (US);
Abstract
An actuator assembly is for a lock including a handle, a latch, a retractor for retracting the latch when the handle rotates, and a lock member displaceable between locked and unlocked positions, which either releasably couples the handle with the retractor or releasably prevents handle rotation. The actuator includes a motor having a shaft rotatable about an axis and a coupler spring disposed about the axis and having a first end coupled with the lock member and a second end. A drive member is coupled or integrally formed with the motor shaft and has a helical drive surface threadably engaged with the coupler spring second end, such that rotation of the shaft displaces the coupler spring along the axis to move the lock member between the locked and unlocked positions. Preferably, the drive member includes a spring coupled with the motor shaft and threadably engaged with the coupler spring.