Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2005-09-27
2005-09-27
Hofsass, Jeffery (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S686100, C340S686200, C340S686300, C340S686400, C340S686500, C340S542000, C340S545100, C070S134000, C070S416000
Reexamination Certificate
active
06950033
ABSTRACT:
A system for determining the position of a bolt in a door including a locking mechanism for moving the bolt between a first locked position wherein the door is secured in position within a door frame and a second unlocked position wherein the door is moveable within the door frame. The position of the bolt is determined by a determining means and a signal indicative of the position of the bolt is generated. A transmitter is connected to the determining means and transmits a signal to a means for indicating to a user the position of the bolt. The indicating means includes a processor and receiver and wherein the transmitter transmits the signals generated by the determining means and the receiver receives the signal and provides the signal to the processor for determining the position of the bolt and generating a signal indicative of the determination.
REFERENCES:
patent: 1723956 (1929-08-01), Schuerman
patent: 2301290 (1942-11-01), Knight
patent: 2793522 (1957-05-01), Tornoe
patent: 3427835 (1969-02-01), Jeffee
patent: 3514557 (1970-05-01), Jette, Jr.
patent: 4465997 (1984-08-01), Hines
patent: 4490999 (1985-01-01), Castle et al.
patent: 4559796 (1985-12-01), De Forrest, Sr.
patent: 4593543 (1986-06-01), Stefanek
patent: 4609910 (1986-09-01), Geringer et al.
patent: 4683741 (1987-08-01), Fields
patent: 4717909 (1988-01-01), Davis
patent: 5009456 (1991-04-01), Eck
patent: 5111007 (1992-05-01), Miller et al.
patent: 5925861 (1999-07-01), Fromberg
patent: 6078256 (2000-06-01), Gottlieb
patent: 6212923 (2001-04-01), Clark
patent: 6354122 (2002-03-01), Snoke
Hofsass Jeffery
Kroll Michael I
Pham Lam
LandOfFree
Door bolt alarm does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Door bolt alarm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Door bolt alarm will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3439720