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:
Jan. 28, 2003
Filed:
Nov. 20, 2000
John F. Gardner, Penfield, NY (US);
Shelly I. Slogoff, Chester Springs, PA (US);
Jane F. Laycock, West Chester, PA (US);
Eric C. Norlin, Coatesville, PA (US);
E. Ford Williams, Bryn Mawr, PA (US);
Tobin H. Williams, Bryn Mawr, PA (US);
Lionville Systems, Inc., Exton, PA (US);
Abstract
A mechanical system closes and latches one or more drawers in a multiple-drawer cabinet. Drawers which are slightly ajar are grasped by the latching mechanism, pulled fully closed, and locked shut. A latch finger engages a catch connected to the drawer and pulls the drawer closed. The finger is actuated by a crankshaft which, as it rotates, first lowers the latch finger to capture the catch, and then retracts the latch finger and with it the captured drawer. The crankshaft rotates to a position where any pull forces on the finger are nearly in line with the axis of the crankshaft and have little tendency to cause reverse rotation. The crankshaft is then retained in this position, effectively locking the drawer closed. Thus, any drawer which is left slightly ajar, and which may falsely appear to be latched, is subsequently closed and securely locked. The latching mechanism may be motorized or manually operated. If motorized, a controller may actuate the mechanism to close and lock the drawers after some predetermined delay. Unlocking may be enabled by key or by security code entry. The locking capability of this system makes it particularly useful in controlling access to medications in a hospital environment or wherever expensive or potentially dangerous materials are stored.