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:
May. 14, 2013
Filed:
Feb. 22, 2007
Darren C Eller, East Lyme, CT (US);
Ryan Piantek, Middletown, CT (US);
Evaldas Malinauskas, Berlin, CT (US);
James Galarneau, Milford, CT (US);
David Steele, Middlefield, CT (US);
Christopher Hill, New Britain, CT (US);
Darren C Eller, East Lyme, CT (US);
Ryan Piantek, Middletown, CT (US);
Evaldas Malinauskas, Berlin, CT (US);
James Galarneau, Milford, CT (US);
David Steele, Middlefield, CT (US);
Christopher Hill, New Britain, CT (US);
Sargent Maufacturing Company, New Haven, CT (US);
Abstract
The present invention provides a pin and tumbler cylinder lock and a retrofitted cylinder lock which minimizes unauthorized openings of the lock by bumping. The cylinder lock utilizes specially designed driver pins which are correlated in size to the largest possible stack height of the tumbler pins with a bump key inserted in the plug portion of the lock and the shear line height of the lock. All the driver pins are about the same height and preferably symmetrical with a lip on each end. The invention also provides a method for retrofitting existing locks by removing at least one of the driver pins and replacing the removed driver pin or pins with the driver pins of the invention.