B41J 9 - Hammer-impression mechanisms

Patents for B41J 9 - Hammer-impression mechanisms (955)
12/1977
12/27/1977	US4064799 Print hammer bumper exhibiting dual resiliency characteristics
12/13/1977	US4062285 Hammer driver controller for impact printers
10/1977
10/04/1977	US4051942 Printing apparatus
09/1977
09/13/1977	US4048665 Driver circuit for printer electromagnet
08/1977
08/30/1977	US4044668 Print hammer mechanism
08/30/1977	US4044455 Method of making a printing hammer unit
07/1977
07/26/1977	US4037706 Composite print wheel
07/26/1977	US4037532 Hammer assembly
07/19/1977	US4037208 Hammer intensity selection apparatus for serial printer
06/1977
06/07/1977	US4027761 Matrix print head impact energy control
05/1977
05/10/1977	US4022311 Electrodynamic actuator
05/03/1977	US4020939 Matrix print head repetition rate control
04/1977
04/19/1977	US4019100 Print hammer energizing and control circuit
04/19/1977	US4018155 Ballistic print hammer assembly
04/19/1977	US4018154 Printing apparatus for cash register
03/1977
03/29/1977	US4014258 High speed printing apparatus
03/01/1977	US4009655 Print hammer actuation device
02/1977
02/15/1977	US4008389 Apparatus for checking the operation of control circuits
02/01/1977	US4005650 Print hammer
01/1977
01/25/1977	US4004507 Envelope indexing head and an indexing apparatus equipped with same
01/25/1977	US4004505 Electromagnetic striker mechanism for a printer
01/25/1977	US4004504 Arrangement in a printer
01/11/1977	US4002118 Printer mechanism for adjusting the position of hammers
01/04/1977	US4000801 Print wire attachment
12/1976
12/21/1976	US3998154 Hammer assembly for use in impact printers
12/21/1976	US3998153 High frequency power integrating printer
12/21/1976	US3998152 Protection system for hammer drive circuits in impact printers
12/14/1976	US3996852 Line printer
12/07/1976	US3995547 Compact flying printer
11/1976
11/30/1976	US3994219 Printer
11/30/1976	US3994218 Energy absorbing print hammer bumper with internal stabilizer
10/1976
10/26/1976	US3988664 System for predicting or detecting a fault in a solenoid utilization system
10/26/1976	US3987886 Mechanism for varying the gap between the print hammers and the type font faces of a printer
10/05/1976	US3983806 Hammer bank assembly
09/1976
09/21/1976	US3981236 Printhead for impact printer
08/1976
08/31/1976	US3977319 Drum column printer
08/17/1976	US3974765 Apparatus for correcting the way in which print hammers strike
07/1976
07/20/1976	US3970186 Damper for a composite print wheel
07/20/1976	US3969998 Printing actuator
07/13/1976	US3968744 Self-damping unitary print hammer for high speed printers
07/06/1976	US3967551 Print mechanism with rockable interposing lever for print hammer
06/1976
06/22/1976	US3964592 Printing mechanism for printing characters
06/22/1976	US3964384 High speed printing mechanism
06/01/1976	US3960075 Elastomeric mounting mechanisms
06/01/1976	US3960074 Line printer having hammer which spans three print positions
05/1976
05/11/1976	US3955498 Electromagnetically actuated printer
05/04/1976	USRE28796 Compact flying printer
05/04/1976	US3954054 Squeeze printer for papers or stacks of papers of varying thicknesses
04/1976
04/13/1976	US3949664 Compact flying printer
03/1976
03/23/1976	US3946285 Solenoid control system with cusp detector
03/16/1976	US3944741 Print rate control system
03/02/1976	US3941229 Serial printing device
03/02/1976	US3941052 Print hammer apparatus with angularly disposed mating hammer and pole faces to prevent contact bounce
03/02/1976	US3941051 Printer system
02/1976
02/03/1976	US3935813 Print hammer device

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