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Publication numberUS312545 A
Publication typeGrant
Publication dateFeb 17, 1885
Publication numberUS 312545 A, US 312545A, US-A-312545, US312545 A, US312545A
InventorsHeffry Zeilijst
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
heffry zeilijst
US 312545 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)



Patented Feb. 17, 1885.




SPECIFICATION forming part of Letters Patent No. 312,545, dated February 17, 1885. Application filed November 6, 1584. (No model.)

To all whom, it may concern:

Be it known that I, J OHN HENRY ZEILIN, a.

name-plate in position; Fig. 3, a section on the I line 1 2, Fig. 2; modifications.

A is the shank of the key, a the bit, and B the head, which may be of any form desired. A tapered undercut groove, 1), is formed in the head; and to this groove is adapted a plate, D, which is tapered and has beveled edges corresponding with the groove b in the head. On the plate D is stamped, out, or cast the name or number of the room to which the key belongs, or the name of the owner of and Figs. 4 and 5, views of i the key. The plate D is inserted in the groove and forced tightly into place in the head B. The edge 00 of the key may then be burred, which will prevent the plate from slipping out of place, or the end y of the plate may be barred with the same effect. Fig. 4 isa inodi fication showing the plate D and groove b straight. but both having undercut edges, the

end of the key in this case being burred at,

the point a: to retain the plate in position.

In the modification Fig. 5, a recess, 10, is made in the head; and the plate D is correspondingly indented by punching after it has been slipped into its place in the head of the key. The plate can be inserted in any portion of the head, according to the style of the key used.

By providing a key with the above described name-plate a key belonging to a certain room can be marked as desired, and if the lock is changed or removed to another door the name-plate can be detached from the key and a new name-plate inserted.

I claim as my invention-' As a new article of manufacture, a key having a detachable name-plate, all substantially as described.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3093920 *Apr 20, 1962Jun 18, 1963Independent Lock CoReinforced key
US3313135 *Nov 19, 1964Apr 11, 1967Reisner SamKey coupling device
US3324586 *Dec 10, 1964Jun 13, 1967Mitchell Nancy JIdentification of key-use
US4188741 *Apr 14, 1978Feb 19, 1980Levy Lawrence LKey
US5311757 *Mar 8, 1993May 17, 1994Aug. Winkhaus Gmbh & Co. KgFlat key with circuit chip
US6094954 *Sep 2, 1998Aug 1, 2000Carmen; Norman M.Key assembly with aperture, slot and insert
US6604308 *Oct 25, 1999Aug 12, 2003Sergio F. RoblesKey with identifying system
US8397547 *Sep 24, 2009Mar 19, 2013Shih-Te LiuUnlocking device for concealing keyhole of lock and key therefor
US8511122 *Jun 12, 2012Aug 20, 2013Joseph A. MendozaRemote key device
US8820128Nov 27, 2012Sep 2, 2014Shih-Te LiuAnti-picking device for lock and key thereof
US20060048553 *Jul 26, 2005Mar 9, 2006Keyworks, Inc.Lead-free keys and alloys thereof
US20100077811 *Sep 24, 2009Apr 1, 2010Shih-Te LiuUnlocking Device for Concealing Keyhole of Lock and Key Therefor