Patents
Patents for B41J 29 - Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for (36,873)
06/1978
06/13/1978US4095234 Recording apparatus for providing lustrous printing
06/06/1978US4093772 Pressure-activated and non-tacky lift-off element and process therefor
06/06/1978US4093056 Single revolution mechanism
05/1978
05/16/1978US4089569 Resilient mount for the driving shaft of an impact matrix printer and the like
04/1978
04/25/1978US4085838 Type correction article employing adhesives
04/18/1978US4085445 Text merge with copies and envelopes
04/18/1978US4084680 Enhanced underscoring methods and means for automatic typewriter and the like employing hammer-type impact printing mechanism
03/1978
03/14/1978US4079298 Open-loop D.C. motor of printer carriage speed
02/1978
02/21/1978US4074453 Device for holding flexible, yieldable information carriers
01/1978
01/31/1978US4071134 Typing error correction device
01/24/1978US4069755 Ribbonless endorser for printing both fixed and variable information on moving documents
12/1977
12/27/1977US4065638 Demountable bearing and shaft assembly
12/27/1977US4065083 Equipment security device
12/20/1977US4064388 Decoder clutching system for minicomputers
12/20/1977US4063630 Typewriter impact position adjustment mechanism
12/06/1977US4061220 Correcting device for typewriters
10/1977
10/25/1977US4055704 Typing correction paper
10/04/1977US4051945 Electronic tabulator for high speed printers
09/1977
09/27/1977US4050564 Electronic control for optimizing carrier turnaround in printing apparatus
08/1977
08/30/1977US4044668 Print hammer mechanism
08/23/1977US4043438 Printing control circuit
08/23/1977US4043064 Copyholder
07/1977
07/12/1977US4034843 Split correction ribbon and method
07/05/1977US4033255 Print hammer actuator for dot matrix printers
06/1977
06/28/1977US4032766 Wide range current flow fault detector
06/28/1977US4031996 Tab repositioning system
05/1977
05/31/1977US4026402 Incremental line printer
05/24/1977US4024943 Marking apparatus for stenographic typewriter or the like
05/24/1977US4024662 Copyholder and line follower
05/17/1977US4023664 Automatic typewriter
04/1977
04/26/1977US4019619 Paper feed sensing mechanism for printer
04/19/1977US4017933 Typeball cleaning apparatus
04/05/1977US4016428 Power switching circuit
03/1977
03/29/1977US4014427 Variable bottom-edge margin indicator and method for typewriter paper and the like
03/29/1977US4014426 Paper support roll mechanism for use in a teletypewriter or other such printing device
03/15/1977US4012676 Device for driving recorders and printing carriages in data recorders
02/1977
02/15/1977US4007823 Typewriter correction materials employing adhesives
02/01/1977US4005623 Fastener apparatus
01/1977
01/25/1977US4004672 Printing control device
12/1976
12/21/1976US3998314 Impact typewriter correction tape and method of manufacture
12/14/1976US3997047 Attachment for converting a standard typewriter into a correcting typewriter
12/14/1976US3997046 Flexible correction auxiliaries for use with golf-ball typewriters
11/1976
11/16/1976US3991874 Automatic function mechanism for typewriters
10/1976
10/26/1976US3987885 Automatic single and repeat function mechanism for typewriters
10/26/1976US3987880 Wrap around spring clutch
10/12/1976US3985219 Ribbon cartridge for automatic typewriter function
09/1976
09/28/1976US3983468 Motor drive system including a feedback loop
09/28/1976US3982744 Personalized computer printed hard covered book
09/21/1976US3981388 Automatic bottom margin signal system for typewriters
09/21/1976US3981383 Right hand margin control system
09/07/1976US3978965 Ribbon cartridge for automatic typewriter function
08/1976
08/31/1976US3977510 Automatic function mechanism for typewriters
08/24/1976US3976184 Ribbon cartridge for dual automatic typewriter function
08/24/1976US3976182 Automatic function mechanism for typewriters
08/17/1976US3974539 Cutter device for typewriter correction pick-off device
07/1976
07/20/1976US3971044 Electronic horizontal shifting and variable print width in a buffered printer
07/06/1976US3967715 Intermittent drive system for typewriters
06/1976
06/08/1976US3962608 Apparatus for holding and cooling electronic circuit boards in remote-controlled typewriters
05/1976
05/25/1976US3958735 Method and apparatus for detecting paper drive malfunctioning in an automatic printer
05/18/1976US3957150 Impression control apparatus for typewriters
05/04/1976US3954163 High speed printer with intermittent print wheel and carriage movement
04/1976
04/27/1976US3953774 Control method of a DC motor
04/27/1976US3952852 Column format control system
04/20/1976US3951247 Electrothermal printing unit
04/13/1976US3949857 Electromechanical writing device
04/13/1976US3949855 Typewriter carriage jam precluding and action jam release mechanisms
04/13/1976US3949854 Typewriter carriage construction
04/13/1976US3949851 Motion translation means for high speed printer print head
03/1976
03/09/1976US3942621 Method of and article for masking
03/02/1976US3941228 Electromagnetically operated printer
02/1976
02/24/1976US3939963 Type correction aid
01/1976
01/13/1976US3931761 Method of continuous printing of documents
01/06/1976US3930559 Sound insulating hoods for noise emitting apparatus