US PATENT SUBCLASS 123 / 198 R
ACCESSORIES

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

198 RACCESSORIES {10}
198 A  DF  .~> Decarbonizers and antiknocks
198 B  DF  .~> Antitheft valves and locks
198 C  DF  .~> Pumps
198 D  DF  .~> Safety devices
198 DA  DF  .~> Bearing wear, cylinder, oil drain, auto ignition
198 DB  DF  .~> Fuel cut-off
198 DC  DF  .~> Ignition cut-off control
198 E  DF  .~> Covers, trays, vibrators, corrosion inhibitors, air filters
198 F  DF  .~> Cylinder cut out
198 P  DF  .~> Pressurizing - crankcase, clutch housing, transmission housing

Unofficial Alpha Subclasses: R A B C D DA DB DC E F P

DEFINITION

Classification: 123/198

Miscellaneous accessory device designed for use with internal-combustion engines not otherwise provided for in this classification.

(1) Note. For thermometers combined with internal-combustion engine structure wherein no more of said internal combustion engine is included than is necessary to locate the thermometer, see the Search Class notes below.

(2) Note. Cleaning apparatus and processes are for the most part provided for elsewhere. See the Search Class notes below.

SEE OR SEARCH CLASS

15, Brushing, Scrubbing, and General Cleaning, for cleaning apparatus which involve at least one of the following means or operations: a gas blast or vacuum, brushing, beating, scraping, wiping, shotting, the use of a squeegee, with or without a detergent.

134, Cleaning and Liquid Contact With Solids, for processes of cleaning engines or parts thereof even though claimed in combination with steps of engine operation, when only such engine operation steps are claimed as are necessary for the cleaning operation claimed and also for apparatus for cleaning engines when a combination with the engine is not claimed.

148, Metal Treatment, for metal cleaning or pickling processes combined with other metal treating steps.

181, Acoustics, 204, for acoustical machine type enclosures specifically adapted for internal-combustion engines.

252, Compositions, for detergent compositions and for cleaning processes limited to the mere use of a detergent even though the thing or surface cleaned be specified.

374, Thermal Measuring and Testing,

144, and indented subclasses, for thermometers combined with internal-combustion engine structure wherein no more of said internal combustion engine is included than is necessary to locate the thermometer,