Class 271: SHEET FEEDING OR DELIVERING ( Manual of U.S. Patent Classification )

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


Class
271
SHEET FEEDING OR DELIVERING


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Subclass Title
ClassTitle ===> SHEET FEEDING OR DELIVERING
1[Patents]SPECIAL ARTICLES
2[Patents] . Envelope
3.01[Patents]DELIVERING TO STACK AND FEEDING THEREFROM
3.02[Patents] . Aligning at stack
3.03[Patents] . Intermediate tray
3.04[Patents] . With job divider (e.g., resettable bail bar or double bar separator)
3.05[Patents] . Feeding from bottom of stack
3.06[Patents] . . Control for feeding responsive to delivering
3.07[Patents] . . Pneumatic separating
3.08[Patents] . Feeding from top of stack
3.09[Patents] . . Control for feeding responsive to delivering
3.11[Patents] . . Pneumatic separating
3.12[Patents] . Sheets on edges
3.13[Patents] . With sheet sensor for selective location
3.14[Patents]FEEDING AND DELIVERING
3.15[Patents] . Sensor located at the feeder and controls the delivering
3.16[Patents] . . Having timer
3.17[Patents] . Sensor located at the delivering and controls the feeding
3.18[Patents] . Conveyor releases to subsequent conveyor
3.19[Patents] . . With alternate conveying path
3.2[Patents] . . Including conveyor couple
3.21[Patents] . . On peripheral face of drum or belt
3.22[Patents] . . . Pneumatic
3.23[Patents] . . Including pneumatic conveyor
3.24[Patents] . . Including gripper couple
4.01[Patents] . Separator and conveyor
5[Patents] . . Pneumatic separator
6[Patents] . . Continuous endless conveyor
4.02[Patents] . . Sensor located at the separator and controls the conveyor
4.03[Patents] . . Sensor located at the conveyor and controls the separator
4.04[Patents] . . Mechanically linked for simultaneous operation
4.05[Patents] . . Endless belt separator
4.06[Patents] . . . To endless belt conveyor
4.07[Patents] . . . To rotary conveyor
4.08[Patents] . . Rotary separator
4.09[Patents] . . . To endless belt conveyor
4.1[Patents] . . . To rotary conveyor
4.11[Patents] . . Reciprocating separator
4.12[Patents] . . . To rotary conveyor
7[Patents] . Continuous endless conveyors
8.1[Patents]FEEDING
9.01[Patents] . Multiple supplies
9.02[Patents] . . Sheet feeding from one supply controls feeding from another supply
9.03[Patents] . . . Responsive to empty supply
9.04[Patents] . . . Alternate feeding
9.05[Patents] . . Supply selection (e.g., sheet color)
9.06[Patents] . . . Size selection
9.07[Patents] . . Single separator acts on multiple supplies
9.08[Patents] . . . Movably mounted supply
9.09[Patents] . . Including manual supply
9.1[Patents] . . Including continuous web supply
9.11[Patents] . . Superposed supplies
9.12[Patents] . . Juxtaposed supplies
9.13[Patents] . . With convergence to single path
10.01[Patents] . Separator and conveyor
11[Patents] . . Pneumatic separator
12[Patents] . . . Endless conveyor
13[Patents] . . . . Side aligner
14[Patents] . . . Reciprocating conveyor
15[Patents] . . . Side aligner
16[Patents] . . Buckling separator and endless conveyor
17[Patents] . . . Side aligner
10.02[Patents] . . Sensor located at the separator and controls the conveyor
10.03[Patents] . . Sensor located at the conveyor and controls the separator
10.04[Patents] . . Mechanically linked for simultaneous operation
10.05[Patents] . . Selective drive (e.g., number of degree of rotation)
10.06[Patents] . . Endless belt separator
10.07[Patents] . . . To endless belt conveyor
10.08[Patents] . . . To rotary conveyor
10.09[Patents] . . Rotary separator
10.1[Patents] . . . To endless belt conveyor
10.11[Patents] . . . To rotary conveyor
10.12[Patents] . . . . With aligning
10.13[Patents] . . . . With clutch
10.14[Patents] . . Reciprocating separator
10.15[Patents] . . . To endless belt conveyor
10.16[Patents] . . . To rotary conveyor
18[Patents] . Separators
18.1[Patents] . . Magnetic or electrostatic
18.2[Patents] . . . Cyclicly moving
18.3[Patents] . . Surface-piercing element(s)
19[Patents] . . Buckling
20[Patents] . . . Pneumatic
21[Patents] . . . Rotary
22[Patents] . . . . Pack advancer
23[Patents] . . . . Bottom feed
24[Patents] . . . Pack advancer
25[Patents] . . . . Feeler control
90[Patents] . . Pneumatic
91[Patents] . . . Plural, relatively-moving suction members
92[Patents] . . . . Laterally receding members (e.g., for tautening sheet laterally)
93[Patents] . . . . Including members for separating and members for forwarding sheet
94[Patents] . . . Unidirectionally-moving suction member or surface
95[Patents] . . . . Having additional movement
96[Patents] . . . . With means to adjust suction
97[Patents] . . . Sheet removal by pressurized gas
98[Patents] . . . . And suction means
99[Patents] . . . Suction member acting on bottom of pack
100[Patents] . . . . Oscillating member bending margin of bottom sheet
101[Patents] . . . . . With moving segments supporting remainder of pack
102[Patents] . . . . Suction member reciprocating perpendicularly to sheet
103[Patents] . . . Sheet-moving action of suction member results from engagement with sheet
104[Patents] . . . With means to restrain feed of next sheet
105[Patents] . . . Means effecting preliminary operation on sheets in pack
106[Patents] . . . . Suction member flexing sheet or portion
107[Patents] . . . Oscillating suction member
108[Patents] . . . Controlled by valve means
30.1[Patents] . . . Pack advancer
31[Patents] . . . . Feeler control
31.1[Patents] . . . . Stack on edge
33[Patents] . . Adhesive
34[Patents] . . Endless belt
35[Patents] . . . Bottom feed
109[Patents] . . Rotary
37[Patents] . . . Preliminary protrusion
38[Patents] . . . . Feeler control
110[Patents] . . . Control of separator responsive to sensing of sheet
111[Patents] . . . . Including plural separators or plural sensors
112[Patents] . . . Suction assisted
113[Patents] . . . Separator rotating in plane of foremost sheet
114[Patents] . . . Variably or intermittently driven
115[Patents] . . . . In oscillatory movement
116[Patents] . . . . By over-running one-way drive
117[Patents] . . . Separator adjustable or retractable relative to pack
118[Patents] . . . . Feed by successive approach and retraction
119[Patents] . . . Separator having non-uniform periphery
120[Patents] . . . . Including relatively movable elements
121[Patents] . . . With means to restrain feed of next sheet
122[Patents] . . . . By restrainer having rearwardly moving surface
123[Patents] . . . . By restrainer acting on rear end of sheet
124[Patents] . . . . By adjustable restrainer
125[Patents] . . . . . Including restraining roller
126[Patents] . . . With means to urge pack toward separator
127[Patents] . . . . Including pivoted pack holder
42[Patents] . . Reciprocating
128[Patents] . . . With pack advancer
129[Patents] . . . . With sheet on edge
130[Patents] . . . . And feeler control for advancer
131[Patents] . . . Bottom feed
132[Patents] . . . . Suction assisted
133[Patents] . . . . With means to prepare pack or bottom sheet for feeding
134[Patents] . . . . . By relief of pack weight
135[Patents] . . . . . By partial planar movement of bottom sheet
136[Patents] . . . . With means to skip or stop feed
137[Patents] . . . . With means to restrain feed of next sheet
138[Patents] . . . . . By adjustable exit or throat
139[Patents] . . . . By pusher reciprocating variably or non-rectilinearly
140[Patents] . . . . . Orbital (e.g., four-way) motion of pusher
141[Patents] . . . . By pin (e.g., pointed) pusher
142[Patents] . . . . By adjustable (e.g., for sheet thickness) pusher
143[Patents] . . . . By self-aligning (e.g., yieldable) pushers
144[Patents] . . . . Holder adjustable to size of sheet
225[Patents] . By means to change direction of sheet travel
226[Patents] . With means to align sheet
227[Patents] . . Responsive to sheet-sensor
228[Patents] . . . To control gripper-couple moving sheet to alignment
229[Patents] . . With means to retard sheet before alignment
230[Patents] . . . By member moved with sheet
231[Patents] . . . . Including suction retarder
232[Patents] . . Against aligner entering hole in sheet
233[Patents] . . Against rear-edge aligner
234[Patents] . . Against plural aligning assemblages
235[Patents] . . . For incremental travel against successive front-edge aligners
236[Patents] . . . For front and side alignment of sheet
237[Patents] . . . . Alignment of imbricated sheets
238[Patents] . . . . Including oppositely-disposed side-edge aligners
239[Patents] . . . Plural aligners selectively used
240[Patents] . . . Oppositely-disposed side-edge aligners
241[Patents] . . By aligning a sheet-holder and its sheets
242[Patents] . . Against temporarily-stopped conveyer
243[Patents] . . Against front-edge aligner moved in direction of sheet travel
244[Patents] . . . By retro-moving front-edge aligner
245[Patents] . . Against front-edge aligner interposed into sheet path
246[Patents] . . . Synchronized with intermittently-active conveyor-couple
247[Patents] . . . . Including sheet-margin gripper
248[Patents] . . Against aligner adjacent side edge of sheet
249[Patents] . . . By shifting aligner and gripper-couple laterally of sheet travel
250[Patents] . . . By means to shift sheet laterally against aligner
251[Patents] . . . . By oblique conveyor
252[Patents] . . . . By gripper-couple pulling sheet laterally
253[Patents] . . With means to adjust position of aligner
254[Patents] . . . During operation of feeder
255[Patents] . . . With indicator of aligner position
256[Patents] . With means to interrupt feeding
258.01[Patents] . . Responsive to sheet sensor
259[Patents] . . . Plural sensors
260[Patents] . . . . Pneumatic sensors (e.g., to sense superposed sheets)
261[Patents] . . . . Laterally spaced sensors (e.g., to sense misalignment)
262[Patents] . . . Excess-thickness sensor
263[Patents] . . . . To activate an electric circuit
258.02[Patents] . . . Interrupts feeding upstream only
258.03[Patents] . . . Single sensor with timer
258.04[Patents] . . . Sensor operates warning indicator
258.05[Patents] . . . Mechanical linkage
257[Patents] . . Manually controlled (e.g., for alternate-cycle feed)
264[Patents] . By means to convey sheet (e.g., from pack to operation)
265.01[Patents] . . Responsive to sheet sensor
265.02[Patents] . . . Plural sensors
265.03[Patents] . . . . Laterally spaced sensors
265.04[Patents] . . . Thickness sensor
266[Patents] . . With intermittent movement of the sheet
267[Patents] . . On oscillating or reciprocating conveyor
268[Patents] . . . Including gripper-couple
269[Patents] . . . Including rear-edge pusher
270[Patents] . . With means to vary speed of conveyor sheet
271[Patents] . . By rear-edge pusher
272[Patents] . . Between superposed conveyor couple
273[Patents] . . . Having means to permit separation of couple
274[Patents] . . . . Including couple-elements resiliently urged together
275[Patents] . . On peripheral face of drum or belt
276[Patents] . . . Including pneumatic means
277[Patents] . . . Including gripper-couple
145[Patents] . Pack holders
146[Patents] . . With means to vibrate pack
147[Patents] . . Advancer
148[Patents] . . . With means to move portions of advancer unequally (e.g., for unequal-thickness sheets)
149[Patents] . . . For on-edge or imbricated sheets
150[Patents] . . . . Supported by moving conveyor belt
151[Patents] . . . . . For imbricated sheets
152[Patents] . . . Control of advancer responsive to sensing of foremost sheet
153[Patents] . . . . Sensor included in feed mechanism
154[Patents] . . . . Sensor activates electric or fluidic circuit
155[Patents] . . . . . Controlled electric or fluidic motor actuates advancer
156[Patents] . . . . Controlled pawl and ratchet actuates advancer
157[Patents] . . . With means to replenish pack or retract advancer platform
158[Patents] . . . . Using plural platforms during continuous operation of feeder
159[Patents] . . . . . And plural drives for plural platforms
160[Patents] . . . Urged by spring or weight
161[Patents] . . With means to bow sheets
162[Patents] . . Holder movable relative to feed position
163[Patents] . . . Holder convertible from feed to delivery
164[Patents] . . . Holder moved parallel to plane of sheets
165[Patents] . . For feed from bottom of pack
166[Patents] . . . With means to relieve weight of pack
167[Patents] . . With means to restrain feed of next sheet
168[Patents] . . . By sheet-impaling restrainer
169[Patents] . . . By lateral margin or side-edge restrainer
170[Patents] . . . . Corner snubber
171[Patents] . . Holder adjustable to size of sheet
278[Patents]DELIVERING
279[Patents] . Multiple discharge
280[Patents] . . For separating sheet from moving assemblage of sheets
281[Patents] . . . By separating member moving in direction opposite of assemblage
282[Patents] . . . By sheet attracting means
283[Patents] . . . . Pneumatic attracting means
284[Patents] . . . . . Opposed pneumatic attracting means
285[Patents] . . . With leading edges of sheets offset
286[Patents] . . . . With means to cause offset
287[Patents] . . Of successive sheets to plural receivers in succession
288[Patents] . . . With control means to vary mode of operation
289[Patents] . . . . To bypass array of receivers
290[Patents] . . . . . To route sheets to subsequent array of receivers
291[Patents] . . . With selective actuation of means for inverting duplex sheets
292[Patents] . . . With movable receivers or receiver portions
293[Patents] . . . . With means to increase spacing between receiver defining portions
294[Patents] . . . . Receivers moving into registry with delivery zone
295[Patents] . . . . . Receivers arranged in rotary array
296[Patents] . . . By diverter or conveyor moving past receivers
297[Patents] . . . By individual diverter for each receiver
298[Patents] . . With means to program discharge destination
299[Patents] . . To laterally spaced receivers
300[Patents] . . By release from conveyor at plural locations
301[Patents] . . Selectively to recirculating path or exit
302[Patents] . . By conveyor section movable to direct sheets along alternate paths
303[Patents] . . With movable diverter
304[Patents] . . . Bidirectionally rotating diverter roller
305[Patents] . . . Individual diverter for each receiver
65[Patents] . Optional face or back
66[Patents] . . Endless conveyors to flies
67[Patents] . Endless conveyors to curtains
69[Patents] . Endless conveyors to other conveyors
70[Patents] . . To flies
72[Patents] . Rotary conveyors to flies
73[Patents] . Curtains
306[Patents] . With transfer means between conveyor and receiver
307[Patents] . . Means to strip sheets from engagement with moving conveyor
308[Patents] . . . Stripper cyclically movable between stripping and nonstripping position
309[Patents] . . . By air blast
310[Patents] . . . By means to attract sheet from conveyor
311[Patents] . . . Stripper normally in contact with conveyor surface
312[Patents] . . . Stripper normally in spaced relation to conveyor surface
313[Patents] . . . . With means to maintain constant spacing of movable stripper
175[Patents] . . Means to drape sheets over horizontal bar
176[Patents] . . Responsive to delivered sheet
177[Patents] . . Means to push sheets out of edgewise into broadside movement (e.g., packer)
178[Patents] . . . Rotating packer
179[Patents] . . . . Screw or helix
180[Patents] . . . By reciprocating or oscillating packer
181[Patents] . . . . Packing sheets on-edge into receiver
182[Patents] . . Means to retard sheets
183[Patents] . . . By suction retarder
184[Patents] . . Means to change orientation or direction of sheets during delivery
185[Patents] . . . Orientation-changing means
186[Patents] . . . . Sheet inverting means
187[Patents] . . . . By rotating circumferential-pocket members
188[Patents] . . Means to bow sheets during delivery
189[Patents] . . Means temporarily interposed between conveyor and receiver
190[Patents] . . . Transversely-disposed, gapped sheet-supports on endless carrier
191[Patents] . . . Endless belt on reciprocating carrier
192[Patents] . . . Counter-rotating supports for lateral margins
193[Patents] . By electrostatic or magnetic conveyor
194[Patents] . By pneumatic conveyor
195[Patents] . . Using pressurized gas
196[Patents] . . Unidirectionally-moving suction member or surface
197[Patents] . . . Including endless-belt conveyor and suction chamber
198[Patents] . By endless conveyor
199[Patents] . . Operation controlled by delivered sheet
200[Patents] . . With delivery end movably relative to pack receiver
201[Patents] . . . Moving away from increasing delivered pack
202[Patents] . . With means to vary speed of sheets on conveyor(s)
203[Patents] . . . By cyclicly varying conveyor speed
204[Patents] . . Suspension gripper
205[Patents] . . . For lateral margins of conveyed sheet
206[Patents] . . . With means to adjust gripper
314[Patents] . Rotary conveyor
315[Patents] . . With circumferential pocket members
81[Patents] . . Traveling
82[Patents] . . Suspension gripper
83[Patents] . . Flies
84[Patents] . Reciprocating conveyors
85[Patents] . . Suspension gripper
207[Patents] . To receiver for pack of sheets
208[Patents] . . With means to discharge static electricity
209[Patents] . . With means to bow sheets
210[Patents] . . With means to vibrate receiver
211[Patents] . . With air cushion between sheet and pack
212[Patents] . . For receiving sheets from below the pack
213[Patents] . . With movable sheet-surface support
214[Patents] . . . Receding from delivery zone (e.g., retractor)
215[Patents] . . . . Responsive to increase
216[Patents] . . . . Conveyor-receiver for imbricated sheets
217[Patents] . . . . Lowering as pack-height increases
218[Patents] . . . . . With auxiliary support for part of pile
219[Patents] . . . . . Spring-loaded support
220[Patents] . . With movable pack-limiting member(s) (e.g., hold-down)
221[Patents] . . . And means to move members cyclicly against sheet edges (e.g., jogger)
222[Patents] . . . . And yieldable connection in moving means
223[Patents] . . . Members adjustable to sheet size
224[Patents] . . . . Sheet-impact bumper member
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CROSS-REFERENCE ART COLLECTIONS
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900[Patents]STRIPPER
901[Patents]MAGNETIC OPERATION
902[Patents]REVERSE DIRECTION OF SHEET MOVEMENT
903[Patents]TRAVELING WICKET (FOR STACK ON EDGE)


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Last Modified: 6 October 2000