US PATENT SUBCLASS 91 / 53
ENGINE ROTATING OR STARTING TYPE


Current as of: June, 1999
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91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

53ENGINE ROTATING OR STARTING TYPE


DEFINITION

Classification: 91/53

(under the class definition) Apparatus for turning or starting the rotary shaft of an engine and having a clutch or gearing connection with the engine which is disengaged from or which permits the engine shaft to rotate while the starting motor is inoperative.

(1) Note. The inclusion in the claim of the engine by name only or only that part of the engine which cooperates with the starting or rotating motor will not act to exclude a patent from this definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55, for expansible chamber motors combined with a clutch or disengageable gearing which may be selectively operated.

SEE OR SEARCH CLASS

60, Power Plants, 625+, for an internal combustion engine with structure for rotating or starting it by pressure fluid.

74, Machine Element or Mechanism,

6+, for mechanical movement or gearing engageable with a machine for starting the machine and in which conventional means applies power to the mechanical movements or gearing.

123, Internal-Combustion Engines,

179.1+, for internal combustion engine starting devices.

192, Clutches and Power-Stop Control,

.07+, for the combination of a motor and a clutch in which the motor control operates the clutch control and subclass .096 for the combination of a motor and clutch having separate controls which are interrelated.