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:
Oct. 18, 1983
Filed:
May. 12, 1981
Applicant:
Inventor:
Robert L Propst, Bellevue, WA (US);
Assignee:
Herman Miller, Inc., Zeeland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
70276 ; 70354 ; 70413 ;
Abstract
A card operable magnetic lock apparatus comprising an elongated non-magnetic plate member and a plurality of tumbler members which are normally biased into engagement in longitudinally spaced recesses of the plate member to prevent longitudinal movement thereof. The tumbler members pivot about a common axis and have north and south magnetic poles which are substantially opposite relative to the axis. A properly encoded magnetic card can be positioned adjacent the tumbler members to urge the tumbler members out of engagement in the recesses to free the plate member for longitudinal movement.