US PATENT SUBCLASS 204 / 196.01
.~.~ Object protection

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
196.01.~.~ Object protection {15}
196.02  DF  .~.~.~> With control means responsive to sensed condition {2}
196.05  DF  .~.~.~> With programmed, cyclic, or time responsive control means
196.06  DF  .~.~.~> With measuring, testing, or sensing means {1}
196.08  DF  .~.~.~> With gas or vapor removing or treating means
196.09  DF  .~.~.~> Plural cells used or protected
196.1  DF  .~.~.~> Internal battery {10}
196.26  DF  .~.~.~> Resistor or impedance in series between power supply and object
196.27  DF  .~.~.~> Alternative energy supply (e.g., solar panel, thermoelectric or piezoelectric power supply, etc.)
196.28  DF  .~.~.~> Rotating electrode
196.29  DF  .~.~.~> Magnetic mounting means
196.3  DF  .~.~.~> Rigid anode with rigid support {1}
196.33  DF  .~.~.~> Flexible cable, chain, or wire anode or support {1}
196.36  DF  .~.~.~> Earth grounded object or protection means
196.37  DF  .~.~.~> Vessel protected (e.g., steam boiler, etc.)
196.38  DF  .~.~.~> Anode contains precious metal or free carbon

DEFINITION

Classification: 204/196.01

Object protection:

(under subclass 194) Apparatus having means for utilizing an

electrolytic current or potential (a) to prevent corrosion, scale formation, or other objectionable action in or on a solid object or (b) to neutralize, correct, or reverse corrosion, scale formation, or other objectionable action that occurs when a solid object is in normal use.

(1) Note. This subclass and the subclasses indented hereunder are not intended to include apparatus for electrolytic treatment of fluids (e.g., so that the fluids do not cause or accelerate electrolytic action during subsequent use, etc.). Apparatus of this type is classified in another appropriate subclass or subclasses of this class based on the apparatus structure or character.

(2) Note. Combinations of electrolytic object protection means as defined in this subclass with diverse art devices (i.e., per se means classifiable in another class) are provided for in this subclass and the subclasses indented hereunder when no more of the diverse art device is specified than is necessary to provide a setting or locus for the object protection means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

155+, for chemical preparation of a desired chemical compound or element by using electrical or wave energy in a magnetic field (other than (1) electrolysis as provided for in Class 205 or (2) preparation in which a chemical reaction is brought about by the mere heating effect of the electrical or wave energy), including object protection.

SEE OR SEARCH CLASS

136, Batteries, Thermoelectric and Photoelectric, 200+, for thermoelectric batteries and subclasses 243+ for photoelectric batteries.

205, Electrolysis: Processes, Compositions Used Therein and Methods of Preparing the Compositions,

724+, for an electrolytic process of protecting a metal or metal alloy object.

307, Electrical Transmission or Interconnection Systems,

95, for electrical systems having means to prevent electrolysis as a result of the operation of such systems.

361, Electricity: Electrical Systems and Devices,

230+, for ionization apparatus, in general, and subclasses 500+ for electrolytic apparatus which is utilized for a purpose other than to (1) produce a desired chemical change or (2) protect an object by use of an electrolytic current or potential.

392, Electric Resistance Heating Devices,

457, for a line connected tank type liquid heater with an immersion heating element and with means protecting against galvanic corrosion where (1) the protecting means is nonelectrolytic in nature or (2) there is more of the heater specified than is necessary to provide a setting or locus for the protection means.

429, Chemistry: Electrical Current Producing Apparatus, Product, and Process, for an electrolyte, process, or apparatus specialized for generation or production of an electrical current as a result of a chemical reaction or change in physical state (e.g., from liquid to gas, etc.).