US Patent Class 368
HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  CONTROLLED BY A DISPARATE DEVICE
2  DF  .~ Speed checker
3  DF  .~ Game
4  DF  .~ Telephone
5  DF  .~ Engine (e.g., internal combustion)
6  DF  .~ Vehicle (e.g., aircraft, automobile) or vehicle part
7  DF  .~.~ Actuation of a parking meter
8  DF  .~.~ Actuation of a running-time meter
9  DF  .~ Electrical device
10  DF  COMBINED WITH DISPARATE DEVICE
11  DF  .~ Ambient condition detector
12  DF  .~ External alarm
13  DF  .~ Telephone
14  DF  .~ Navigational instrument
15  DF  ASTRONOMICAL
16  DF  .~ With sun, earth, and moon display
17  DF  .~ With sun and earth display
18  DF  .~ With moon and earth display
19  DF  .~ With tide display
20  DF  .~ With navigational display
21  DF  PLURAL TIME ZONES
22  DF  .~ With manually actuated display
23  DF  .~ With a world globe
24  DF  .~.~ Including illumination means
25  DF  .~ With movable belt display
26  DF  .~ With movable drum display
27  DF  .~ With movable disk display
28  DF  WITH CALENDAR INDICATOR
29  DF  .~ Electro-optical
30  DF  .~.~ Liquid crystal display (i.e., LCD)
31  DF  .~ Winding and setting
32  DF  .~.~ Having clutch coupling
33  DF  .~ Winding
34  DF  .~ Setting or resetting
35  DF  .~.~ Movable ring or disk
36  DF  .~.~.~ With clutch
37  DF  .~ Movable ring or disk
38  DF  .~.~ With jumper spring
39  DF  .~ Movable drum
40  DF  .~ Movable belt
41  DF  WITH MEMORANDUM HOLDER OR ERASABLE WRITING SURFACE
42  DF  .~ Motion controlled by timepiece
43  DF  .~ Having alarm controlled by holder
44  DF  .~ Having pointer controlled by timepiece
45  DF  TOY
46  DF  PLURAL TIMEPIECE SYSTEM OR SYSTEM DEVICE (E.G., PRIMARY OR SECONDARY CLOCKS)
47  DF  .~ With wireless synchronization
48  DF  .~ With auxiliary power source
49  DF  .~ With significant winding or setting means
50  DF  .~.~ For winding only
51  DF  .~.~ For setting only
52  DF  .~ Primary with direct synchronization or drive
53  DF  .~.~ By external condition responsive means
54  DF  .~.~ By fluidic actuation means
55  DF  .~.~ By communication means
56  DF  .~.~ By signal frequency change
57  DF  .~.~ By signal amplitude change
58  DF  .~.~ By signal polarity change
59  DF  .~ Secondary
60  DF  .~.~ With mechanical or electromechanical resetting
61  DF  .~.~.~ Having mechanically actuated electrical switch
62  DF  CHRONOLOGICAL
63  DF  .~ Phonetic (e.g., talking clock)
64  DF  .~ With supplemental power source
65  DF  .~ With fluidic actuation means
66  DF  .~ With power monitor
67  DF  .~ With auxiliary illumination for display
68  DF  .~ With intensity control of display
69  DF  .~ With manually actuated display
70  DF  .~.~ Operated sequentially for distinct time data
71  DF  .~ With simultaneous time indicating means
72  DF  .~.~ Alarm type
73  DF  .~.~.~ Actuated by electrical means
74  DF  .~.~.~ With significant winding or setting
75  DF  .~.~ Sequential hourly sounding means
76  DF  .~ With mechanical or electromechanical driven display
77  DF  .~.~ Rotating disk
78  DF  .~.~ Drum
79  DF  .~.~ Optical
80  DF  .~.~ Hand and dial
81  DF  .~.~.~ Having motor located in hand
82  DF  .~ With electro-optical display
83  DF  .~.~ Solid body light emitter (e.g., LED)
84  DF  .~.~ Liquid crystal display (i.e., LCD)
85  DF  .~ With pulse transforming means
86  DF  .~.~ Including transistor
87  DF  .~.~.~ Integrated circuit
88  DF  .~ With significant casing or mounting support structure
89  DF  TIME INTERVAL
90  DF  .~ Parking meter type
91  DF  .~.~ With gravity-actuated timer
92  DF  .~.~ With overtime indicator
93  DF  .~ Gravity actuated type (e.g., hourglass)
94  DF  .~.~ With alarm means
95  DF  .~.~ With special support means
96  DF  .~ With alternately operating indicators (e.g., chess clock)
97  DF  .~ With predetermined mechanical timing means
98  DF  .~.~ Including alarm means
99  DF  .~.~.~ With combined alarm and time motor
100  DF  .~.~.~ With cam-controlled striker
101  DF  .~ Mechanical stop time type
102  DF  .~.~ With plural second hands (e.g., split-seconds)
103  DF  .~.~ With pivoted coupler
104  DF  .~.~ With sliding coupler
105  DF  .~.~ With positive stop
106  DF  .~.~ With reset means
107  DF  .~ Electrical or electromechanical
108  DF  .~.~ For predetermined interval
109  DF  .~.~.~ Including alarm means
110  DF  .~.~ Mechanically actuated stop time type
111  DF  .~.~.~ With electronic memory storage
112  DF  .~.~.~ With reset means
113  DF  .~.~ Stop time type
114  DF  .~.~.~ With physically changeable element
115  DF  .~.~.~ Including cathode-ray tube oscilloscope
116  DF  .~.~.~.~ With brightner means
117  DF  .~.~.~.~ With variable delay means
118  DF  .~.~.~ Including time base oscillator
119  DF  .~.~.~.~ Plural
120  DF  .~.~.~ Including delay means
121  DF  .~.~.~ Including time indicating means actuated by voltage or electrical charge
122  DF  .~.~.~.~ With null indicator having variable circuit element
123  DF  .~.~.~.~ With vacuum-tube voltmeter
124  DF  ESCAPEMENTS
125  DF  .~ With oscillating or reciprocating means
126  DF  .~.~ Magnetic type
127  DF  .~.~ Balance wheel type
128  DF  .~.~.~ With motion conversion drive
129  DF  .~.~.~ Carrying impulse receiving means
130  DF  .~.~.~.~ On balance shaft
131  DF  .~.~.~.~.~ With pallet lock
132  DF  .~.~.~ With levers
133  DF  .~.~.~.~ In straight-line configuration
134  DF  .~.~ Pendulum type
135  DF  .~.~.~ With motion conversion drive
136  DF  .~.~.~ With gravity actuation
137  DF  .~.~.~ With beat adjuster
138  DF  .~.~.~.~ Having a verge
139  DF  MECHANICAL TIME BASE
140  DF  .~ Mainspring
141  DF  .~.~ With protection means
142  DF  .~.~ With mainwheel on barrel
143  DF  .~.~ With mainwheel on arbor
144  DF  .~.~ With attachment means for spring
145  DF  .~.~ With winding and setting
146  DF  .~.~.~ Stem
147  DF  .~.~ With winding
148  DF  .~.~.~ Self
149  DF  .~.~.~.~ Electric
150  DF  .~.~.~.~.~ Weight controlled
151  DF  .~.~.~.~ Spring
152  DF  .~.~.~ Gravity
153  DF  .~.~.~ Case controlled
154  DF  .~.~ With spring click
155  DF  ELECTRICAL TIME BASE
156  DF  .~ Solid state oscillating circuit type
157  DF  .~.~ For reciprocating or oscillating element
158  DF  .~.~.~ Balance wheel type
159  DF  .~.~.~ Crystal
160  DF  .~ For reciprocating or oscillating element
161  DF  .~.~ Balance wheel type
162  DF  .~.~.~ With coil
163  DF  .~.~.~ With magnet
164  DF  .~.~.~ With opening and closing of contacts
165  DF  .~.~ Pendulum
166  DF  .~.~.~ With drive means control
167  DF  .~.~ Tuning fork
168  DF  OSCILLATING OR RECIPROCATING MEANS
169  DF  .~ Balance wheel type
170  DF  .~.~ With regulation
171  DF  .~.~.~ By compensation
172  DF  .~.~.~ By rack and pinion
173  DF  .~.~.~ By screw
174  DF  .~.~.~.~ With spring bias
175  DF  .~.~.~ By hairspring
176  DF  .~.~.~.~ With curb pins
177  DF  .~.~.~.~ With collet
178  DF  .~.~.~.~ With stud
179  DF  .~ Pendulum type
180  DF  .~.~ Torsion
181  DF  .~.~ With regulation
182  DF  .~.~.~ By thermal compensation
183  DF  .~.~ With lock
184  DF  REGULATING MEANS
185  DF  .~ For setting
186  DF  .~.~ With rate regulation
187  DF  .~.~ By electrical device actuation
188  DF  .~.~.~ With single actuation and plural pulses
189  DF  .~.~.~ With pulse blocking means
190  DF  .~.~ By winding means (e.g., stem)
191  DF  .~.~.~ Having a clutch
192  DF  .~.~.~.~ With lever engagement
193  DF  .~.~.~.~.~ Coupling
194  DF  .~.~.~.~.~.~ To notch in stem
195  DF  .~.~.~.~.~.~.~ With coupling spring biased
196  DF  .~.~.~ Having a movable plate
197  DF  .~.~.~.~ With double gear
198  DF  .~.~.~.~.~ Cam engagement
199  DF  .~.~.~.~.~ Lever engagement
200  DF  .~ For adjusting the frequency or beat
201  DF  .~.~ Of frequency divider
202  DF  .~ For compensation
203  DF  POWER SUPPLY DETAILS
204  DF  .~ Electrical
205  DF  .~.~ Solar cell
206  DF  WINDING MEANS
207  DF  .~ Self
208  DF  .~.~ Inertia
209  DF  .~ With overwind prevention
210  DF  .~ With condition indicator
211  DF  .~.~ Audio
212  DF  .~.~ Pointer and scale
213  DF  .~ For cranked lever
214  DF  .~ Key
215  DF  .~ Rim
216  DF  .~ Stem
217  DF  PULSE TRANSFORMING MEANS
218  DF  .~ With transistor
219  DF  .~.~ Field-effect transistor
220  DF  DISPLAY TRAINS
221  DF  .~ For rotatable disk dial type
222  DF  .~ For drum or plate dial type
223  DF  DISPLAYS OR DISPLAY DEVICE DETAILS
224  DF  .~ With manual activation
225  DF  .~.~ By motion or position
226  DF  .~ With luminous material
227  DF  .~ With auxiliary illumination for display
228  DF  .~ Dial or hand
229  DF  .~.~ With animation (e.g., motion clock)
230  DF  .~.~ For tactile time perception (e.g., braille clock)
231  DF  .~.~ With time indicia shifting means
232  DF  .~.~ Including dial details only
233  DF  .~.~.~ Of rotatable disk type
234  DF  .~.~.~ Translucent
235  DF  .~.~.~ Of drum or plate type
236  DF  .~.~.~ Of dial fasteners
237  DF  .~.~.~.~ Screw
238  DF  .~.~ Including hand details only
239  DF  .~ Optical
240  DF  .~.~ With circular pattern of light sources
241  DF  .~.~ With solid body light emitter (e.g., LED)
242  DF  .~.~ With liquid crystal display (i.e., LCD)
243  DF  SIGNALLING MEANS
244  DF  .~ Time condition responsive (i.e., alarm)
245  DF  .~.~ With variable loudness or tone
246  DF  .~.~ With same day plural time selection
247  DF  .~.~ For more than one day (e.g., eight-day clock)
248  DF  .~.~ With automatic repetition over short interval
249  DF  .~.~ With signal condition indicator
250  DF  .~.~ Electrical
251  DF  .~.~.~ With electronic memory storage
252  DF  .~.~.~ With contact on a circle
253  DF  .~.~.~ With contact on a hand
254  DF  .~.~.~ With cam control
255  DF  .~.~.~ With piezoelectric means
256  DF  .~.~.~ With optical signal
257  DF  .~.~.~ With mechanical let-off
258  DF  .~.~.~.~ Having alarm winding arbor
259  DF  .~.~.~ With combined alarm and time motor
260  DF  .~.~ With combined alarm and time motor
261  DF  .~.~ Plural
262  DF  .~.~ With shutoff
263  DF  .~.~.~ For short period
264  DF  .~.~.~ Having spring wind release
265  DF  .~.~ With let-off
266  DF  .~.~.~ Setting
267  DF  .~ Repeat
268  DF  .~.~ Double snail
269  DF  .~ Cam controlled
270  DF  .~.~ Snail
271  DF  .~.~ Pin
272  DF  .~ Musical (e.g., "cuckoo-clock")
273  DF  .~.~ Chimes
274  DF  .~ Recorded
275  DF  .~ With deactivation during setting
276  DF  CASES
277  DF  .~ Adaptable
278  DF  .~ Combined with disparate device
279  DF  .~.~ Ring
280  DF  .~ Of particular material
281  DF  .~ Wrist worn
282  DF  .~.~ With band or bracelet details
283  DF  .~.~ With a cover
284  DF  .~ With tubular shape
285  DF  .~ With ornamentation
286  DF  .~ With protection means
287  DF  .~.~ Shock absorbing
288  DF  .~.~ For crown or stem
289  DF  .~.~.~ By waterproofing
290  DF  .~.~.~.~ Push-button stem type
291  DF  .~.~ Waterproofing
292  DF  .~.~.~ Noncircular-type case
293  DF  .~.~ Antimagnetic shielding
294  DF  .~ With bezel or crystal details
295  DF  .~.~ Of bezel only
296  DF  .~.~ Of crystal only
297  DF  .~ With details of center
298  DF  .~.~ Integral to front or back
299  DF  .~ With movement ring details
300  DF  .~ With movement securing means
301  DF  .~ With pendant details
302  DF  .~.~ Bow
303  DF  .~.~.~ Fastener
304  DF  .~.~.~.~ Pin or screw
305  DF  .~.~.~.~ Sleeve
306  DF  .~.~ Crown or stem
307  DF  .~.~.~ Fastener
308  DF  .~ With crown or stem details
309  DF  .~ With front or back details
310  DF  .~.~ Of screw-threading to case center
311  DF  .~.~ Of opening spring
312  DF  .~.~.~ Cover connection
313  DF  .~.~ Of hinge connection
314  DF  .~ With dial or sash securing means
315  DF  .~ With alarm or striking attachment
316  DF  .~ With support details
317  DF  .~.~ Base
318  DF  PLATE DETAILS
319  DF  CROWN OR STEM DETAILS
320  DF  .~ Switch or detent
321  DF  .~.~ Electrical
322  DF  ARBOR AND PINION DETAILS
323  DF  CANNON PINION DETAILS
324  DF  STAFF AND BEARING DETAILS
325  DF  .~ Balance
326  DF  .~.~ For protection (e.g., shock absorbing)
327  DF  MISCELLANEOUS