US PATENT SUBCLASS 180 / 272
.~ Responsive to absence or inattention of operator, or negatively reactive to attempt to operate vehicle by person not qualified mentally or physically to do so

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


180 /   HD   MOTOR VEHICLES

271  DF  WITH MEANS FOR PROMOTING SAFETY OF VEHICLE, ITS OCCUPANT OR LOAD, OR AN EXTERNAL OBJECT {7}
272.~ Responsive to absence or inattention of operator, or negatively reactive to attempt to operate vehicle by person not qualified mentally or physically to do so {1}
273  DF  .~.~> Utilizing weight, or lack thereof, of operator on seat or other support to determine presence or absence

DEFINITION

Classification: 180/272

Responsive to absence or inattention of operator, or negatively reactive to attempt to operate vehicle by person not qualified mentally or physically to do so:

(under subclass 271) Vehicle wherein the means either (a) initiates action to safeguard the vehicle or an occupant (e.g., applies brake, closes throttle, sounds alarm, etc.) when the operator is not at his usual station or fails to positively indicate his presence and/or his attentiveness (e.g., a "deadman-type" control), or (b) foils an attempt to start or drive the vehicle if the would-be operator is unable to demonstrate his mental or physical capacity to do so (e.g., a "coded" ignition lock for dissuading one who is inebriated).

SEE OR SEARCH CLASS

246, Railway Switches and Signals,

186, for train control involving means located on the train

for controlling its motive power, which may include deadman-type control devices.

303, Fluid-Pressure and Analogous Brake Systems,

19, for a brake system wherein distribution of the fluid is initiated upon some failure of the operator.

340, Communications: Electrical, 573.1+, for a condition responsive indicating system of that class, which system is responsive to the condition of a human being or an animal, and see particularly subclasses 575 and 576 thereunder.

600, Surgery,

300, for diagnostical devices which may include breath analyzers.