US Patent Class 475
PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  INPUT FROM INDEPENDENT POWER SOURCES
2  DF  .~ Condition responsive motor control
3  DF  .~ Including manual input
4  DF  .~.~ And electric motor input
5  DF  .~ Including electric motor input
6  DF  .~ Plural outputs
7  DF  .~ Worm gear in drive train
8  DF  .~ One-way clutch or brake in drive train
9  DF  .~ Bevel planet pinion in drive train
10  DF  .~ Intermeshing planet pinions in drive train
11  DF  ROTARY PLANETATING OUTPUT
12  DF  REVERSAL OF DIRECTION OF POWER FLOW CHANGES POWER TRANSMISSION TO ALTERNATE PATH
13  DF  .~ Input and output exchange functions
14  DF  CYCLICAL OR INTERMITTENT DRIVE
15  DF  .~ Plural outputs
16  DF  .~ With means to adjust cycle or drive during operation
17  DF  .~ Multilated or noncircular gear in drive train
18  DF  STEERING BY DRIVING
19  DF  .~ With condition responsive steer control
20  DF  .~ With cooling or lubrication
21  DF  .~ With infinitely variable drive
22  DF  .~.~ Variable drive is fluid drive
23  DF  .~.~.~ Hydrostatic type
24  DF  .~.~.~.~ Plural pump-motor sets
25  DF  .~.~ Belt type
26  DF  .~.~ Variable drive is friction drive
27  DF  .~ Fluid steer control
28  DF  .~ With plural power paths to a planetary transmission at each output
29  DF  .~ With planetary reaction brake steering
30  DF  .~.~ And carrier input to planetary gearing
31  DF  FLUID DRIVE OR CONTROL OF PLANETARY GEARING
32  DF  .~ Diverse fluid drives
33  DF  .~ Plural impeller-turbine type fluid circuits
34  DF  .~.~ Fill and empty type
35  DF  .~ Single impeller-turbine type fluid circuit divides or combines plural power paths
36  DF  .~.~ Planetary gearing divides paths
37  DF  .~.~ Three fluid outputs
38  DF  .~.~.~ And stator
39  DF  .~.~ Two fluid outputs and stator
40  DF  .~.~.~ With variable fluid drive control
41  DF  .~.~.~ And mechanical drive path
42  DF  .~.~ Control of or by fluid drive
43  DF  .~.~ With speed or torque responsive clutch or brake control
44  DF  .~.~ Stator rotatable in reverse direction to provide drive
45  DF  .~.~.~ Turbine braked, stator provides reverse drive
46  DF  .~.~.~.~ And adds torque in forward drive
47  DF  .~ Impeller-turbine type fluid circuit and mechanical path in parallel
48  DF  .~.~ With control of or by the fluid circuit
49  DF  .~.~.~ Gearing controlled by fluid circuit condition
50  DF  .~.~.~ Fill and empty type fluid circuit
51  DF  .~.~ With speed responsive control
52  DF  .~.~ And nonplanetary gearing
53  DF  .~.~ Planetary gearing divides paths
54  DF  .~.~ Sun, orbit and carrier braked
55  DF  .~.~ Sun and orbit braked
56  DF  .~.~ Sun and carrier braked
57  DF  .~.~ Orbit and carrier braked
58  DF  .~.~ Orbits braked
59  DF  .~ Impeller-turbine type fluid circuit in series with planetary gearing
60  DF  .~.~ And condition responsive control
61  DF  .~.~.~ Control of or by fluid circuit
62  DF  .~.~.~.~ Control responsive to relative impeller and turbine speeds
63  DF  .~.~.~.~.~ System or servo fluid pressure controlled
64  DF  .~.~.~.~ Fluid circuit controlled
65  DF  .~.~.~.~.~ By lock-up clutch actuation
66  DF  .~.~ And nonplanetary gearing
67  DF  .~.~ With synchronizing of positive clutch or brake
68  DF  .~.~ With nonratio brake
69  DF  .~.~ Fluid circuit controlled
70  DF  .~.~.~ Pressure controlled
71  DF  .~.~ And differential in series
72  DF  .~ Fluid pump and motor in one of plural paths to or from planetary gearing
73  DF  .~.~ Plural fluid power paths to planetary gearing
74  DF  .~.~ Plural outputs
75  DF  .~.~ Three pumps or motors
76  DF  .~.~ Speed responsive control
77  DF  .~.~.~ Constant speed output
78  DF  .~.~ Interrelated fluid unit and gear control
79  DF  .~.~.~ With constant speed ratio between input and one fluid unit
80  DF  .~.~ Plural speed ranges
81  DF  .~.~.~ With constant speed ratio between input and one fluid unit
82  DF  .~.~.~.~ Having single planet carrier
83  DF  .~ Pump and motor in series with planetary gearing
84  DF  .~ Control of differential planetary gearing
85  DF  .~.~ Special fluid
86  DF  .~.~ By fluid operated mechanical clutch
87  DF  .~.~.~ Operated by viscous drag
88  DF  .~.~.~ Operated by a pump responsive to differential action
89  DF  .~.~ Fluid resistance controls relative rotation of outputs
90  DF  .~.~.~ Fluid pumped by differential gears
91  DF  .~ Fluid resistance inhibits relative rotation
92  DF  .~.~ Fluid damper for reaction element
93  DF  .~.~ Valve inhibits fluid flow
94  DF  .~.~.~ Speed or torque responsive valve control
95  DF  .~.~.~.~ Centrifugally actuated valve controls fluid clutch
96  DF  .~.~.~.~.~ Clutch connects planet pinion and carrier
97  DF  .~.~.~.~.~ With fluid brake control
98  DF  .~.~.~.~ Centrifugally actuated valve controls fluid brake
99  DF  .~.~.~ Interrelated valve control and mechanical clutch or brake
100  DF  .~.~.~.~ Valve control and mechanical clutch
101  DF  .~.~.~.~.~ Pump pressure engages mechanical clutch
102  DF  .~.~.~ Fluid brake(s) for plural planetary elements
103  DF  .~.~.~ Plural fluid clutches
104  DF  .~.~.~ Fluid brake for planetary element
105  DF  .~.~.~.~ And fluid clutch
106  DF  .~.~.~.~ Bevel gearing
107  DF  .~.~.~.~ Sun or orbit braked
108  DF  .~.~.~ Fluid clutch includes gear type pump
109  DF  .~.~.~ Planet clutched to carrier
110  DF  .~.~.~.~ With reversing means
111  DF  .~.~ Planet clutched to fluid flywheel
112  DF  .~.~ Fluid container connected to planet pinion
113  DF  .~.~ Impeller-turbine type fluid unit used as brake
114  DF  .~ Fluid control of friction planetary gearing
115  DF  .~.~ Stepless ratio change controlled
116  DF  .~ Fluid controlled mechanical clutch or brake
117  DF  .~.~ Temperature responsive control
118  DF  .~.~ Speed responsive control
119  DF  .~.~.~ Safety device
120  DF  .~.~.~ Pressure control
121  DF  .~.~.~ Ratio change
122  DF  .~.~.~.~ Speed responsive valve control
123  DF  .~.~.~.~.~ Electrical control
124  DF  .~.~.~.~.~ Centrifugal control
125  DF  .~.~ Torque responsive control
126  DF  .~.~.~ Responsive to torque reversal
127  DF  .~.~ Pressure regulation
128  DF  .~.~.~ Valving controls shift timing
129  DF  .~.~.~.~ With fluid accumulator
130  DF  .~.~.~ Manual regulator
131  DF  .~.~ Manually actuated ratio selector
132  DF  .~.~.~ Electrical
133  DF  .~.~.~ With safety valve
134  DF  .~.~.~ Plural selector valves
135  DF  .~.~.~ Rotary valve
136  DF  .~.~ With ancillary pump or governor drive
137  DF  .~.~.~ Plural pumps
138  DF  .~.~ With positive clutch or brake
139  DF  .~.~.~ And friction synchronizer
140  DF  .~.~ Spring engaged, fluid released clutch or brake device
141  DF  .~.~.~ Plural devices simultaneously spring engaged
142  DF  .~.~.~ Single fluid motor engages one device and releases other
143  DF  .~.~ Expanding fluid motor chamber mechanically contracts second motor
144  DF  .~.~ Fluid controlled one-way devices
145  DF  .~.~ Fluid motor controls device through cam or lever
146  DF  .~.~ Fluid motor structure
147  DF  .~.~.~ Radially expanding motor
148  DF  .~.~.~ With one-way device
149  DF  ELECTRIC OR MAGNETIC DRIVE OR CONTROL
150  DF  .~ Differential drive or control
151  DF  .~ Plural power paths
152  DF  .~.~ With nonplanetary drive to electric or magnetic path
153  DF  .~ With condition responsive control
154  DF  .~ With electric or magnetic controlled brake
155  DF  .~.~ And manual speed selector
156  DF  .~.~ Electric or magnetic device disengages brake
157  DF  .~.~ Electric or magnetic engaged brake and spring engaged lockup clutch
158  DF  WITH INDICATOR OR ALARM
159  DF  WITH LUBRICATON
160  DF  .~ For differential planetary gearing
161  DF  WITH TRANSMISSION COOLING OR HEATING MEANS
162  DF  PLANET PERIPHERY SURROUNDS AXIS OF INTERACTING GEAR (E.G., ECCENTRICALLY DRIVEN TRANSMISSON)
163  DF  .~ Wabbler transmission
164  DF  .~.~ Single member has oppositely axially facing tooth sets
165  DF  .~ Friction gearing
166  DF  .~.~ Variable speed
167  DF  .~ Link chain gearing
168  DF  .~ Gear teeth comprise rolling bodies
169  DF  .~ Means to change speed ratio between input and output
170  DF  .~.~ Variable eccentricity
171  DF  .~.~ Plural power paths to planetary gearing
172  DF  .~.~ Condition responsive control
173  DF  .~.~ Plural planetary elements braked
174  DF  .~ Plural outputs
175  DF  .~ With releasable clutch or brake
176  DF  .~ Gear has plural circumferential tooth sets
177  DF  .~.~ Internal and external tooth sets
178  DF  .~ Circumferentially spaced connector pins
179  DF  .~.~ Roller bearing surrounds pin
180  DF  .~ Particular gear tooth
181  DF  .~ Particular counterweight
182  DF  PLANET PINION ENGAGES FLEXIBLE BELT OR CHAIN
183  DF  PLANET PINION IS FRICTION GEAR
184  DF  .~ Plural outputs (e.g., differential)
185  DF  .~ Variable speed ratio (without slippage)
186  DF  .~.~ Condition responsive ratio change
187  DF  .~.~ Releasably braked element
188  DF  .~.~.~ Plural elements releasably braked
189  DF  .~.~ Planet pinion is a ball
190  DF  .~.~ Planet pinion rotatable about axis at angle to axis of input or output gear
191  DF  .~.~.~ Planet pinion is member having axis fixed or adjustable to position perpendicular to axis of input or output gear
192  DF  .~.~.~.~ Pinion engages facing concave surfaces (e.g., mounted in torus)
193  DF  .~.~.~ Conical or frusto-conical planet pinion
194  DF  .~.~.~.~ Torque responsive means to increase contact pressure
195  DF  .~ Torque responsive means to increase contact pressure
196  DF  .~ Planet pinion is ball
197  DF  .~ Planet pinion rotatable about axis at angle to axis of input or output gear
198  DF  VARIABLE SPEED OR DIRECTION TRANSMISSION COMBINED WITH DIFFERENTIAL
199  DF  .~ Condition responsive
200  DF  .~ Differential is beneath prime mover or transmission
201  DF  .~ Differential is between prime mover and transission in the path of power flow
202  DF  .~ With universal joint in drive train
203  DF  .~ Plural selectively driveable gears surround differential
204  DF  .~ Variable speed or direction is planetary transmission
205  DF  .~.~ Plural planetary units combined with differential
206  DF  .~ Transmission output shaft parallel to differential output shafts
207  DF  NONPLANETARY VARIABLE SPEED OR DIRECTION TRANSMISSION COMBINED WITH PLANETARY TRANSMISSION
208  DF  .~ Condition repsonsive
209  DF  .~ Interrelated control of in series transmissions
210  DF  .~ Nonplanetary transmission is belt or chain gearing
211  DF  .~.~ Plural power paths to planetary gearing
212  DF  .~.~.~ Nonplanetary transmission is chain gearing
213  DF  .~.~ Nonplanetary transmission is chain gearing
214  DF  .~ Nonplanetary transmission is friction gearing
215  DF  .~.~ Plural power paths to planetary gearing
216  DF  .~.~.~ Friction gear engages facing concave surfaces
217  DF  .~.~.~ Nonplanetary transmission is disc and wheel
218  DF  .~ Plural power paths to planetary gearing
219  DF  .~ Plural planetary units
220  DF  DIFFERENTIAL PLANETARY GEARING
221  DF  .~ Differential or nondifferential planetary combined with differential (e.g., two differentials)
222  DF  .~ With universal joint in drive train
223  DF  .~ Including means to selectively apply rotational power to only one output
224  DF  .~.~ By braking other output
225  DF  .~ With additional gearset between differential output and load
226  DF  .~ Planet pinion is worm gear
227  DF  .~.~ And spur gear on pinion
228  DF  .~ Worm drive on input shaft
229  DF  .~.~ And roller bearing supporting worm from casing
230  DF  .~ Bevel gear differential
231  DF  .~.~ With means to limit overspeed of one output (e.g., lock-up clutch)
232  DF  .~.~.~ Centrifugal actuator
233  DF  .~.~.~ Lock-up clutch between pinion and pinion carrier
234  DF  .~.~.~ By axial movement of output gear
235  DF  .~.~.~.~ With spring bias on gear or clutch
236  DF  .~.~.~ Particular gear shape or tooth interaction limits overspeed
237  DF  .~.~.~ Manual actuator
238  DF  .~.~.~.~ Friction clutch
239  DF  .~.~.~.~.~ Plate clutch
240  DF  .~.~.~ Spring bias on overspeed limiting means
241  DF  .~.~.~.~ Helically coiled spring
242  DF  .~.~ Separate planet pinions or separate tooth set on same pinion for each output
243  DF  .~.~ Output gear rotatable relative to axial support shaft
244  DF  .~.~.~ Support shaft coupled to other output gear
245  DF  .~.~.~ With roller bearing between output gear and shaft
246  DF  .~.~ With roller bearing between gear and its support
247  DF  .~.~.~ Ball bearing
248  DF  .~ Spur gear differential
249  DF  .~.~ With means to limit overspeed of one output
250  DF  .~.~.~ Manual actuator
251  DF  .~.~ Pinion axis at angle intersecting axis of output
252  DF  .~.~ Intermeshing planet pinions
253  DF  .~.~ With roller bearing between gear and its support
254  DF  CONDITION RESPONSIVE CONTROL
255  DF  .~ Eccentrically weighted planet
256  DF  .~ Downshift responsive to high speed limit
257  DF  .~ Speed responsive control adjusted or opposed by torque
258  DF  .~ Centrifugally controlled clutch or brake
259  DF  .~.~ One-way clutch or brake
260  DF  .~.~ Centrifugal brake control
261  DF  .~.~ Positive clutch
262  DF  .~.~ Axially engaged friction clutch
263  DF  .~ Overload release
264  DF  .~.~ Spring applied friction drive establishing means
265  DF  .~.~.~ Drive establishing means is friction brake
266  DF  .~ Stepped, torque responsive ratio change
267  DF  .~ With flywheel or centrifugal weight control
268  DF  .~.~ With planet pinion axis at angle to axis of mating gear (e.g., bevel gears)
269  DF  WITH MEANS TO VARY DRIVE RATIO OR DISCONNECT DRIVE (E.G., BRAKE OR CLUTCH)
270  DF  .~ Manual force provides reaction during drive
271  DF  .~ Plural elements selectively braked
272  DF  .~.~ With preselection
273  DF  .~.~ Axis of planet pinion at angle to axis of mating gear (e.g., bevel gears)
274  DF  .~.~.~ And additional planetary gearset having axis of pinion parallel to axis of mating gear
275  DF  .~.~ Transmission includes three relatively rotatable sun gears
276  DF  .~.~.~ With brake for sun, carrier and orbit
277  DF  .~.~.~ With brake for plural sun gears
278  DF  .~.~.~.~ And brake for carrier
279  DF  .~.~.~ With brake for plural orbits
280  DF  .~.~ Brake for sun, carrier and orbit
281  DF  .~.~.~ Including one-way clutch or brake
282  DF  .~.~ Brake for sun and orbit
283  DF  .~.~.~ Including one-way clutch or brake
284  DF  .~.~ Brake for sun and carrier
285  DF  .~.~.~ Including one-way clutch or brake
286  DF  .~.~ Brake for orbit and carrier
287  DF  .~.~.~ Including one-way clutch or brake
288  DF  .~.~ Plural suns braked
289  DF  .~.~.~ Including one-way clutch or brake
290  DF  .~.~ Plural orbits braked
291  DF  .~.~.~ Including one-way clutch or brake
292  DF  .~.~ Including one-way clutch or brake
293  DF  .~ Speed responsive clutch or brake
294  DF  .~ Ratio shift initiated by reverse rotation of input shaft
295  DF  .~ Plural outputs
296  DF  .~ Plural drive ratios other than unity
297  DF  .~.~ Including one-way clutch or brake
298  DF  .~ Gear shiftable axially to disconnect or vary ratio
299  DF  .~.~ Orbit shiftable relative to sun and carrier
300  DF  .~.~ Sun shiftable relative to orbit and carrier
301  DF  .~ Brake or clutch on surface of helically coiled member
302  DF  .~ Nonplanetary gearing combined with planetary
303  DF  .~ With synchronizing clutch or brake
304  DF  .~ Planet pinion is worm gear
305  DF  .~ Including releasable clutch directly between planet pinion and carrier
306  DF  .~ Brake for planetary transmission having axis of planet pinion at angle to axis of mating gear (e.g., bevel gears)
307  DF  .~.~ Including one-way clutch or brake
308  DF  .~.~ And lock-up clutch
309  DF  .~.~.~ Friction clutch
310  DF  .~.~.~.~ Plate clutch
311  DF  .~ Sun braked
312  DF  .~.~ Including one-way clutch or brake
313  DF  .~.~ Intermeshing planet pinions on single carrier
314  DF  .~.~ And lock-up clutch
315  DF  .~.~.~ Friction clutch
316  DF  .~.~.~.~ Plate clutch
317  DF  .~ Orbit braked
318  DF  .~.~ Including one-way clutch or brake
319  DF  .~.~ Intermeshing planet pinions on single carrier
320  DF  .~.~ And lock-up clutch
321  DF  .~.~.~ Friction clutch
322  DF  .~.~.~.~ Plate clutch
323  DF  .~ Carrier braked
324  DF  .~.~ Including one-way clutch or brake
325  DF  .~.~ Intermeshing planet pinions on single carrier
326  DF  .~.~ And lock-up clutch
327  DF  .~.~.~ Friction clutch
328  DF  .~.~.~.~ Plate clutch
329  DF  PLURAL POWER PATHS TO PLANETARY GEARING
330  DF  .~ Plural planetary units
331  DF  PLANETARY GEARING OR ELEMENT
332  DF  .~ Plural outputs
333  DF  .~ Planet pinion is worm gear
334  DF  .~ Floating support annulus in rolling contact with planet pinion
335  DF  .~ Toothed planet pinion has smooth bearing surface engaging raceway on sun or orbit gear
336  DF  .~ Axis of planet pinion at angle intersecting rotational axis of mating gear (e.g., bevel gears)
337  DF  .~ Plural planet carriers in series move at different speeds
338  DF  .~ Coaxial teeth around planet pinion engage axially spaced relatively rotatable gears
339  DF  .~.~ Engage plural relatively rotatable sun gears
340  DF  .~.~.~ And orbit gear
341  DF  .~.~ Engage plural relatively rotatable orbit gears
342  DF  .~.~.~ And sun gear
343  DF  .~ Nonplanetary gearing combined with planetary
344  DF  .~ Particular gear tooth feature
345  DF  .~.~ Nonmetallic or resilient
346  DF  .~ Floating or flexible coupling or support
347  DF  .~.~ Resilient member
348  DF  .~ Planet pinion supported by roller bearings
349  DF  .~ With manual input
******************************
CROSS-REFERENCE ART COLLECTIONS
******************************
900  DF  BRAKE FOR INPUT OR OUTPUT SHAFT
901  DF  PARTICULAR MATERIAL
902  DF  .~ Nonmetallic
903  DF  STACKED PLANETARY GEARING
904  DF  PARTICULAR MATHEMATICAL EQUATION