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

Class
409
GEAR CUTTING, MILLING, OR PLANING

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.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

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

Subclass		Title
ClassTitle		===> GEAR CUTTING, MILLING, OR PLANING
1		GEAR CUTTING
2		. With regulation of operation by use of templet, card, or other replaceable information supply
3		. . Including follower for templet
4		. And burnishing simultaneously
5		. With compensation for backlash in drive means
6		. With work or product advancing
7		. . Utilizing transfer arm
8		. Gear chamfering or deburring
9		. . Using relatively reciprocating or oscillating cutter
10		. Gear tooth shape generating
11		. . Hobbing
12		. . . Process
13		. . . . Generating tooth for bevel gear
14		. . . Including means to shift hob between cutting passes
15		. . . With control means energized in response to activator stimulated by condition sensor
16		. . . Plural hobs
17		. . . Including infeed means
18		. . . . To infeed along axis of work rotation
19		. . . . . Infeed of cutter
20		. . . . . . And infeed radially of axis of work rotation
21		. . . . . . Vertically
22		. . . . To infeed radially of axis of work rotation
23		. . . . . Infeed of cutter
24		. . . . . . And infeed tangentially of work axis
25		. . Milling with radial faced tool
26		. . . Process
27		. . . Adapted to cut bevel gear
28		. . . . With means to continuously rotate work and means to co-form all teeth of gear
29		. . . . Bevel gear having nonparallel opposing tooth flanks
30		. . . . Including rotary cutter cradle
31		. . By relative axial movement between synchronously indexing or rotating work and cutter
32		. . . Crowning
33		. . . Displacing cutter axially relative to work (e.g., gear shaving, etc.)
34		. . . . Using gear shaper-cutter
35		. . . . . Plural distinct cutting edges
36		. . . . . Cutting rotating work, the axis of which lies in a plane intersecting the cutter axis
37		. . Gear shaving
38		. . Using rotary cutter
39		. . . Having axially directed cutting edge
40		. . . Plural rotary cutters
41		. . . On reciprocating carriage
42		. . Using reciprocating or oscillating cutter
43		. . . Bevel gear cutting
44		. . . . Dual cutters
45		. . . . Double acting cutter
46		. . . Rectilinearly reciprocating cutter
47		. . . . Cutter comprising a rack
48		. . Making a noncircular gear, worm, rotor, or a planar-faced gear
49		. Gear shaving
50		. Using rotary cutter
51		. . Process
52		. . End mill
53		. . . Radially faced
54		. . . . Using plural, selectively usable tools
55		. . Plural rotary cutters
56		. . Cutting action along work axis
57		. . . Cutting action intersecting work axis
58		. Using reciprocating or oscillating cutter
59		. . Broach
60		. . Including circumferentially disposed cutting edges
61		. Work dividing or checking of work position or division
62		. With work clamping
63		WITH FURBISHING OF CUTTER
64		MILLING
65		. Thread or helix generating
66		. . Process
67		. . With means to regulate operation by use of templet, card, or other replaceable information supply
68		. . . Complete cycle
69		. . . To regulate cutting depth (e.g., relief, taper, etc.)
70		. . . To regulate rate of motion (e.g., stopping, etc.)
71		. . With nonthread or nonhelix generating, milling cutter
72		. . With means to advance work or product
73		. . Plural cutters or work holders
74		. . With planetary cutter
75		. . Work means to move work axially and means to interrelate work movement with cutter rotation
76		. . With means to rotate work and means to interrelatedly infeed the work relative to the cutter
77		. . . Means to infeed the cutter
78		. . With means to circumferentially adjust the position of the cutter with respect to the work
79		. With regulation of operation by templet, card, or other replaceable information supply
80		. . With sensing of numerical information and regulation without mechanical connection between sensing means and regulated means (i.e., numerical control)
81		. . To cut lock key
82		. . . Using templet other than a key
83		. . . Complete cycle
84		. . Process
85		. . Reproducing means
86		. . . Including pantograph cutter-carrier
87		. . . . And means to move work at work station
88		. . . . . About work axis
89		. . . . Pivotally supported for vertical movement
90		. . . . And means to counterbalance carrier
91		. . . . Including plural cutters
92		. . . By use of pivotally supported tracer
93		. . . Duplicating means
94		. . . . With means for operation without manual intervention
95		. . . . . To make a double curvature foil
96		. . . . . Including means to sense optical or magnetic image
97		. . . . . With means to support templet above or under work
98		. . . . . Including tracer adapted to trigger electrical energy
99		. . . . . . To actuate electrically driven work or tool moving means
100		. . . . . . To actuate fluid driven work or tool moving means
101		. . . . . Including tracer adapted to trigger fluid energy
102		. . . . . . To actuate fluid driven work or tool moving means
103		. . . . . . . Including cutter and tracer fixed to move laterally together
104		. . . . . And provision for circumferential relative movement of cutter and work
105		. . . . . . Including plural cutters
106		. . . . . Including plural cutters
107		. . . . . Including cross-slide tool carrier
108		. . . . Including plural cutters
109		. . . . Including cross-slide tool carrier
110		. . . . With means to support templet above or under work
111		. . . . With provision for circumferential relative movement of cutter and work
112		. . . With provision for circumferential relative movement of cutter and work
113		. . . . And means for operation without manual intervention
114		. . . . . Including tracer adapted to trigger electrical or fluid energy
115		. . . For using planar templet in cutting profile (e.g., contour map from planar map, etc.)
116		. . . Including means for operation without manual intervention
117		. . Including means for operation without manual intervention
118		. . . Including simultaneously usable plural tracers or including tracer adapted to simultaneously use plural templets
119		. . . . To make a double curvature foil
120		. . . To make a double curvature foil
121		. . . Including cutter and tracer fixed to move together
122		. . . With provision for circumferential relative movement of cutter and work
123		. . And provision for circumferential relative movement of cutter and work
124		. . Including cutter and tracer fixed to move together
125		. Templet, tracer, or cutter
126		. . Tracer
127		. . . Adapted to trigger electrical energy
128		. . . . Photocell
129		. . . Adapted to trigger fluid energy
130		. . Templet
131		. Process
132		. . Including infeeding
133		. With means to weigh or test work or product
134		. With means to protect operative or machine (e.g., guard, safety device, etc.)
135		. With means to control temperature or lubricate
136		. . Cutter or work
137		. With means to remove chip
138		. Means to trim edge
139		. Means to remove scale or raised surface imperfection
140		. . Means to remove flash or burr
141		. With means to dampen vibration
142		. Means to mill epitrochoidal shape
143		. Means for internal milling
144		. With detachable or auxiliary cutter support to convert cutting action
145		. Including means to infeed work to cutter
146		. . With compensation for backlash in drive means
147		. . With control means energized in response to activator stimulated by condition sensor
148		. . . In response to cutter or cutter carriage
149		. . . In response to work or work carriage
150		. . . . To control rate of infeed or return
151		. . . . To control limit of infeed
152		. . . . . Adapted to hydraulically or pneumatically stimulate control
153		. . . . . Adapted to electrically stimulate control
154		. . . To control rate of infeed or return
155		. . . To effect stopping of infeed
156		. . With means to change rate of infeed
157		. . Means to mill indeterminate length work
158		. . Multiple work stations
159		. . With means to advance work or product
160		. . . Vertically
161		. . . Endless or orbital work or product advancing means
162		. . To reciprocate or oscillate work
163		. . With work holder
164		. . . And means to selectively position work
165		. . . Including means to support work for rotation during operation
166		. . . . And including means to infeed cutter toward work axis
167		. . . . With linear movement of work
168		. . . . With angular movement of work
169		. . Including friction gearing drive
170		. . Including fluid drive
171		. With means to effect stopping upon completion of operation
172		. With means to advance work or product
173		. . Endless or orbital work or product advancing means
174		. With means to precisely reposition work
175		. Randomly manipulated, work supported, or work following device
176		. . For machining commutator
177		. . For cutting longitudinal groove in shaft (e.g., keyway, etc.)
178		. . With work supported guide means
179		. . . To guide tool to move in arcuate path
180		. . With work follower
181		. . Randomly manipulated
182		. . . End mill (e.g., router, etc.)
183		. Including means to infeed rotary cutter toward work
184		. . With means to limit penetration into work
185		. . Axially
186		. . . With infeed control means energized in response to activator stimulated by condition sensor
187		. . . . In response to cutter condition
188		. . . . In response to work condition
189		. . . With work holder
190		. . . And laterally
191		. . . . Simultaneously
192		. . . Plural cutters
193		. . With infeed control means energized in response to activator stimulated by condition sensor
194		. . . In response to cutter condition
195		. . . In response to work condition
196		. . With means to change rate of infeed
197		. . With work holder
198		. . . Indexable
199		. . Machining arcuate surface
200		. . . With means to move cutter eccentrically
201		. . Angularly adjustable cutter head
202		. . Including gantry-type cutter-carrier
203		. . Plural cutters
204		. Including means to adustably position cutter
205		. . With work holder or guide
206		. . Linear adjustment
207		. . . With control for adjustment means responsive to activator stimulated by condition sensor
208		. . . . Responsive to position of cutter
209		. . . . And means to clamp cutter support in adjusted position
210		. . . With position indicator or limit means
211		. . . And angular adjustment
212		. . . Including gantry-type cutter-carrier
213		. . . Plural cutters
214		. . With position indicator or limit means
215		. . With right angle cutter drive
216		. . Compound angular adjustment
217		. . Plural cutters
218		. With limit means to aid in positioning of cutter bit or work (e.g., gauge, stop, etc.)
219		. Work support
220		. . With position indicator or stop
221		. . Indexable
222		. . . Including dividing head
223		. . . . Multiple row dividing head
224		. . With angular adjustment
225		. . With work holder or guide
226		. . . Including cutter limited to rotary motion
227		. . With means to adjust work support vertically
228		. Including cutter limited to rotary motion
229		. . Cutter turning about vertical axis
230		. Detachable or repositionable tool head
231		. Cutter spindle or spindle support
232		. . With cutter holder
233		. . . And draw bar
234		. With cutter holder
235		. Machine frame
236		. . Overarm harness structure
237		. . Including counterbalancing means
238		. . Including means to compensate for deformation
239		. . . Deflection of cutter spindle
240		. . Convertible from lathe
241		. . Including relatively movable components and means to relatively immobilize these components
242		. Tailstock
243		BROACHING
244		. Process
245		. With control means energized in response to activator stimulated by condition sensor
246		. . Responsive to condition of work or product
247		. With means to distribute cutter infeed force
248		. With means to select cutter or to select or modify cutter drive
249		. With means to clean, lubricate, or modify temperature of work or cutter
250		. With product handling means
251		. . Between plural broaching stations
252		. . Means to eject broached product
253		. . Chip removal means
254		. With means to protect operative or machine (e.g., guard, safety device, etc.)
255		. . With safety means for overload or safety interlock
256		. With work immobilizer and means to activate work immobilizer interrelated with cutter infeed, work infeed, or work advance
257		. With work infeed or advancing means and means to clamp the work thereto, which clamping means is interrelated with work or cutter infeed
258		. Means to remove flash or burr
259		. Means for cutting groove
260		. . Arcuate groove in cylindrical surface
261		. . . Rifling
262		. Orbital carrier for cutter
263		. Orbital carrier for work
264		. With means to cyclically manipulate cutter or cutter support
265		. . To reorient, introduce, or remove cutter
266		. . Cutter released to interim support at termination of cutting stroke
267		. . To remove and return cutter to cutter support
268		. With plural cutters
269		. With means to advance, infeed, or manipulate work
270		. . Interrelated with cutter infeed
271		. . . Including means supporting work and additional means opposing infeed force
272		. . . Including work indexing means for sequential cutting of different surfaces of a single workpiece
273		. . . Including work indexing means for sequential cutting of surfaces of different workpieces
274		. . . With means to retract work from path of tool's idle return stroke
275		. . To infeed work past cutter
276		. With means to hold work during cutting
277		. . Including work clamping means
278		. . With means to adjust or facilitate adjustment of work or work holder
279		. . With means on work or work holder to guide cutter during infeed
280		. Cutter infeed means
281		. . Imparting rectilinear motion to cutter
282		. . . And rotary motion to cutter
283		. . . Fluid powered means
284		. . . Rack means
285		. . . Screw means
286		. Machine frame
287		. Cutter support or guide
288		PLANING
289		. With regulation of operation by templet, card, or other replaceable information supply
290		. . Including use of tracer adapted to trigger electrical or fluid energy
291		. . . Including provision for circumferential relative movement of cutter and work
292		. . Including provision for circumferential relative movement of cutter and work
293		. Process
294		. With means to lubricate
295		. With product handling means
296		. Randomly manipulated, work supported, or work following device
297		. Means to remove flash or burr
298		. . Elongated work
299		. . . Flash or burr inside hollow work
300		. . . Transverse burr
301		. . Flat work
302		. Of commutator
303		. Means for trimming edge (e.g., chamfering, scarfing, etc.)
304		. Means for cutting groove
305		. . Arcuate groove
306		. . . For rifling
307		. . Inside hollow work
308		. Means for shaving by blade spanning work surface
309		. . Concave work surface (e.g., bearing, stereotype printing plate, etc,)
310		. . Circumferential surface
311		. . Including rack driven infeed means
312		. . Including roller infeed means
313		. Means for cutting arcuate surface
314		. . Cycloidal surface
315		. . With work infeed and means to arcuately reposition the cutter
316		. . With work infeed and means to arcuately reposition the work
317		. With means to relatively infeed cutter and work
318		. . And means to rotate work and cutter at same rate about converging axes
319		. . With plural sequentially acting cutters or with double acting cutter
320		. . And means to vary rate of infeed
321		. . Reciprocating work infeed means
322		. . . With fluid-driven bed
323		. . . With rack-driven bed
324		. . . With screw-driven bed
325		. . . And means to permit repositioning of cutter laterally
326		. . Reciprocating cutter infeed means
327		. . . Reciprocating cutter horizontally
328		. . . . With work support and lead screw to reposition work support
329		. . . . With fluid-powered means to drive cutter
330		. . . . With pivoting link to drive cutter
331		. . . . . Link driven by crank
332		. . . . With rack to drive cutter
333		. . . . With screw to drive cutter
334		. . . With link or cam to drive cutter
335		. . . With rack to drive cutter
336		. . Including means causing return stroke
337		. Machine frame
338		. . Means to permit repositioning of cutter
339		. . . Laterally
340		. . . . Plural independently positioned cutters
341		. . . . Including clutch
342		. . . . Including repositioning means and means to effect stopping thereof
343		. . Including relatively movable components and means to relatively immobilize these components
344		. . Work table
345		. Tool head
346		. . With selectively usable cutting edges
347		. . With means to permit repositioning of cutting for idle return stroke
348		. . . Comprising pivotable cutter or cutter support
		******************************
		CROSS-REFERENCE ART COLLECTIONS
		******************************
900.1		MACHINE BUTTON OR LOCATOR
900.2		MACHINE TOOL CARRIAGE CLAMP
901		STEREOTYPE PRINTING PLATE
902		TIRE MOLD
903		WORK HOLDER
904		WITH HYDROSTATIC BEARING

Information Products Division -- Contacts

Questions regarding this report should be directed to:

U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

---

Last Modified: 6 October 2000