Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1995-09-01
1998-04-07
Hofsass, Jeffery
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
340432, 340691, 34082548, 340542, 340571, B60R 2510
Patent
active
057369240
ABSTRACT:
An alarm lock comprises a main body, a lock core and an alarm device. The main body is provided with a first axial hole and a second axial hole. The lock core has a body capable of a reciprocating motion in the first axial hole. The lock core further has a lock bolt, a locating member and a locating portion. The lock bolt is capable of a reciprocating motion along with the body while the locating member and the locating portion are intended for locating the lock core. The alarm device is disposed in the main body which is further provided with a third axial hole in which a connection member is disposed slidably. The lock bolt is provided with a driving section which is in turn provided peripherally with a first driving portion, a second driving portion, and a third driving portion. The lock bolt is rotated by a key so as to alter the contact areas between the connection member and the driving portions for locking the alarm lock, with or without the alarm device being ready to trigger when the alarm lock is unlocked.
REFERENCES:
patent: 3781861 (1973-12-01), Adler, Jr. et al.
patent: 4057986 (1977-11-01), Zolke et al.
patent: 4663611 (1987-05-01), Humphrey
Hofsass Jeffery
Wu Daniel J.
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