Manual of U.S. Patent Classification
as of June 30, 2000

Class
477
INTERRELATED POWER DELIVERY CONTROLS, INCLUDING ENGINE CONTROL

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

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For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> INTERRELATED POWER DELIVERY CONTROLS, INCLUDING ENGINE CONTROL
1		STEERING BY DRIVING
2		PLURAL ENGINES
3		. Electric engine
4		. . With brake control
5		. . With clutch control
6		. With clutch control
7		ELECTRIC ENGINE
8		. With clutch control
9		. . With brake control
10		. . . Stopped at end of cycle
11		. . Engine stopped at end of cycle
12		. . Common controller
13		. . Electric clutch
14		. . Speed responsive
15		. With transmission control
16		. . Load motion limit control
17		. . Transmission change by moving engine
18		. . Reversible engine
19		. . Engine starting interlock
20		. . Condition responsive engine control
21		. Brake engaged when engine energy deactivated, brake disengaged when engine energy activated
22		. . Cam actuated brake
23		. . Electrically actuated brake
24		. Brake actuation opens switch to engine
25		. . Electrically actuated brake
26		. . Fluid actuated brake
27		. Control means selectively operates engine energy input and brake
28		. . Fluid actuated brake
29		. . Electrically actuated brake
30		GAS TURBINE ENGINE
31		. Continuously variable transmission
32		WITH SUPERCHARGER
33		. Manifold pressure control
34		TRANSMISSION CONTROL
35		. Differential transmission
36		. Plural outputs
37		. Continuously variable friction transmission
38		. . With fluid drive
39		. . With clutch control
40		. . With brake control
41		. . Interrelated control of diverse transmissions
42		. . Constant speed output
43		. . Controlled by engine map
44		. . Belt-type
45		. . . Fluid pressure control
46		. . . . Ratio change controlled
47		. . . . . Engine coast braking
48		. . . . . With electric valve control
49		. . . . . . Duty ratio control
50		. . Fluid pressure control
51		. Fluid resistance inhibits rotation of planetary transmission element
52		. Including fluid drive
53		. . Impeller-turbine-type
54		. . . Engine controlled
55		. . . With countershaft gearing
56		. . . . And turbine shaft brake
57		. . . . And clutch control
58		. . . . Control of or by fluid drive
59		. . . With hydrodynamic braking
60		. . . With nonratio brake
61		. . . Control responsive to fluid drive
62		. . . With clutch control
63		. . . . Disengaged during shift
64		. . . . Speed responsive
65		. . . . . Electrical
66		. . . With fluid unit vane control
67		. . . Fill and empty-type fluid units
68		. . Ratio control
69		. . . With planetary transmission control
70		. With clutch control
71		. . And brake control
72		. . . Temperature responsive control
73		. . . Engine controlled
74		. . . Clutch controlled
75		. . . Gearing controlled
76		. . Temperature responsive control
77		. . Clutch, engine, and transmission controlled
78		. . . Electronic digital control
79		. . Clutch and transmission controlled
80		. . . Speed responsive control
81		. . . . With manual override
82		. . . . Vacuum actuated clutch
83		. . Clutch and engine controlled
84		. . . Speed responsive control
85		. . . . Plural speed signals
86		. . Clutch controlled
87		. . . Electric clutch
88		. . . Vacuum actuated clutch
89		. . . . Electric control
90		. . Engine controlled
91		. . . Speed responsive
92		. With brake control
93		. . Anti-creep
94		. . Brake controls transmission
95		. . . Pressure controlled
96		. . One control blocks another
97		. Control by sensed ambient condition, pattern indicia, external signal, or temperature
98		. . Temperature control
99		. Engine starting interlock
100		. Exhaust emission control
101		. Engine ignition control for transmission change
102		. . Ignition advanced or retarded
103		. . Ignition intermitting and safety means limiting duration of intermission
104		. . Ignition intermitting controlled by manifold pressure
105		. . Ignition intermitting initiated by positioning accelerator
106		. . . Initiation inhibited by sensed condition
107		. Engine controlled by transmission
108		. . Constant output shaft speed
109		. . Diminution during transmission change
110		. . Responsive to transmission output condition
111		. . Transmission setting contingent
112		. . . Change to neutral idles engine
113		. . . . Engine input variable in neutral
114		. Anticreep
115		. Transmission controlled by engine
116		. . Shift from neutral shock control
117		. . . Pressure controlled
118		. . Engine (coast) braking
119		. . . Electric valve control
120		. . By acceleration
121		. . By input manifold pressure or engine fuel control
122		. . . Selector-type
123		. . . With positive shift means
124		. . . . With synchronization
125		. . . Prevents unsafe or unintentional shift
126		. . . . Reverse inhibitor
127		. . . Shift valve control
128		. . . . Hysteresis
129		. . . . . Electric control
130		. . . . Plural shift valves
131		. . . . . Electric control
132		. . . . . . Downshift control
133		. . . . . . . Kickdown
134		. . . . . . Selector valve overrule
135		. . . . . Downshift control
136		. . . . . . Kickdown
137		. . . . . Selector valve overrule
138		. . . . Electric control
139		. . . . . Downshift control
140		. . . . Downshift control
141		. . . . . Kickdown
142		. . . . Selector valve overrule
143		. . . Servo motor timing
144		. . . . Downshift
145		. . . . . With fluid accumulator
146		. . . . . . Electric valve control
147		. . . . . Double acting servo
148		. . . . . Speed responsive control
149		. . . . . Electric valve control
150		. . . . With fluid accumulator
151		. . . . . Engine parameter controls back pressure
152		. . . . . Electric valve control
153		. . . . Double acting servo
154		. . . . Speed responsive control
155		. . . . Electric valve control
156		. . . Transmission pressure controlled
157		. . . . Variable capacity pump
158		. . . . Line pressure controlled
159		. . . . . Responsive to speed
160		. . . . . . Electric valve control
161		. . . . . . . Duty ratio control
162		. . . . . Transmission setting contingent
163		. . . . . Electric valve control
164		. . . . Electric valve control
165		. Engine control linkage mounted on manual gearshift lever
166		CLUTCH CONTROL
167		. With starter
168		. With fluid drive
169		. . Speed responsive control
170		. With brake control
171		. . Clutch controlled
172		. . . And brake controlled
173		. . Engine controlled
174		. Condition responsive control
175		. . Speed responsive
176		. . . Slip rate control
177		. . Overload release
178		. . . Engine shut off
179		. Electric clutch
180		. Regulated clutch engagement
181		. Engine controlled by clutch control
182		BRAKE CONTROL
183		. Sensed condition responsive control of engine of brake
184		. . Brake
185		. . . And engine
186		. . . Speed or acceleration responsive
187		. . Speed or acceleration responsive
188		. Plural diverse brake means
189		. Engine energy control having adjusting and holding device, with means on brake control to override holding device
190		. . Holding device engaged by electric means
191		. . . Magnetic holding device
192		. . Mechanical holding device engaged by mechanical means
193		. . . Device or means including a threaded shaft, rack or ratchet
194		. Brake control having holding device, with means on engine control to override holding device
195		. . Holding device responsive to motion, speed or acceleration
196		. . . Holding device comprising brake valve operated by solenoid
197		. . Holding device engaged by electric means
198		. . . Holding device comprising brake valve operated by solenoid
199		. Brake engaged when engine energy deactivated, brake disengaged when engine energy is activated
200		. . Internal combustion engine
201		. . . Controls brake valve
202		. . . . Vacuum actuated brake
203		. Brake condition change modifies engine condition
204		. . Brake actuation interrupts ignition circuit of fluid engine
205		. . Brake actuation decreases or eliminates fluid energy input to engine
206		. . . By closing throttle valve
207		. . . By preventing increasing operation of engine energy control
208		. Decreasing fluid energy input to engine actuates brake
209		. Control means selectively operates engine energy input and brake
210		. . Foot operated control means
211		. . . Engine and brake control including interconnected elements
212		. . . Pivots and translates
213		. . . . Pivots about intermediate fulcrum
214		. . . Pivots about two fulcrums
215		. . . Pivots about intermediate fulcrum
216		. . . Lever reciprocates on moveable supports at both ends
217		. . . Pivots for sequential operation
218		. . Control means including fluid passage
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		CROSS-REFERENCE ART COLLECTIONS
		******************************
900		CONTROL SIGNAL IS VEHICLE WEIGHT
901		CONTROL SIGNAL IS SLOPE
902		CONTROL SIGNAL IS ENGINE PARAMETER OTHER THAN MANIFOLD PRESSURE OR FUEL CONTROL
903		CONTROL SIGNAL IS STEERING
904		CONTROL SIGNAL IS ACCELERATION
905		. Acceleration of throttle signal
906		MEANS DETECTING OR AMELIORATING THE EFFECTS OF MALFUNCTION OR POTENTIAL MALFUNCTION
907		. Redundant
908		IN SERIES TRANSMISSION

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Last Modified: 6 October 2000