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Patent No. 5979328

Vehicular Impact Signaling Device

An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.

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Class 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems

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132 Subclasses


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Definition

This is the generic class for circuits or devices for making a count of electrical pulses; for circuits or devices for producing output pulses which are a fraction of the number of input pulses i.e., pulse dividers of for devices where information is stored in and serially transferred through a storage medium i.e., shift registers. Also included are pulse multipliers which make use of pulse dividing circuits.

(1) Note. The pulse dividers classified in this class make use of circuits or devices having a gating or switching action. For frequency changers which do not use such elements, e.g., parametric frequency converters, harmonic generators, etc. see the search notes. (2) Note. In reference to counting electrical pulses it is not necessary that a display means be claimed in order for the subject matter to be classified in this class. (3) Note. Magnetic counters are classified here; however magnetic shift registers for static storage and retrieval of information are a specialized form of shift register which are excluded from this class. See References to Other Classes, below. (4) Note. Where shift register circuits are used to perform a memory or storage function and specific structure relating to such function is claimed, e.g., relating to a "read", "write", or "erase" function, the subject matter is classified elsewhere. See References to Other Classes, below. (5) Note. A single "flip-flop" or bistable device is excluded from this class even though it can be considered a divide-by-two circuit. Such subject matter is classified elsewhere. See References to Other Classes, below. Where a plurality of "flip-flops" are connected together in series the circuit comprises a dividing or counting chain and is classified in this class. (6) Note. The electrical pulses which are applied to a counter may originate as mechanical pulses and be subsequently converted to electrical pulses. Also included are applications using counters i.e., systems or devices performing functions other than counting and where a counter is used to indicate something about the state or operating condition of the device or system. Also included are counters, dividers, or shift registers used in circuit configurations which comprise more than a counter, per se, but where the configuration is not provided for in one of the existing Electrical Classes. COMBINATIONS OF OTHER APPARATUS WHICH INCLUDE THE APPARATUS OF THIS CLASS Applications of counters as mentioned in the class definition are classified here only if significant structure of the device or apparatus external to the counter is not claimed. Otherwise, classification is in the appropriate device or application class.

 
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