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Class Information
Number: 101/93.02
Name: Printing > Selective or progressive > Bed and platen machines > With means to prevent double impressions (rebound preventers)
Description: Apparatus in which there is provided means to prevent a repeated and unwanted print impression of a print character.










Patents under this class:
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Patent Number Title Of Patent Date Issued
5302035 Method of driving wire-dot print head Apr. 12, 1994
5263994 Printer having a plurality of printing modes Nov. 23, 1993
5180235 Impact printer with variable impact and rebound control Jan. 19, 1993
5147142 Impact type recording apparatus having reduced impact sound during return of the hammer Sep. 15, 1992
5042376 Aerodynamic damper for an impact printing actuator Aug. 27, 1991
4974976 Printing hammer device Dec. 4, 1990
4944617 Encoder employing a shock absorbing tension spring Jul. 31, 1990
4900169 Print hammer damping mechanism for typewriters and like printing machines Feb. 13, 1990
4842429 Type face striking system in an office writing machine Jun. 27, 1989
4810113 Print head driving system Mar. 7, 1989
4787760 Dot matrix print head Nov. 29, 1988
4781477 Dot matrix print head Nov. 1, 1988
4749976 Solenoid Jun. 7, 1988
4744684 Impact-type recording apparatus May. 17, 1988
4722622 Damping apparatus for a print hammer mechanism Feb. 2, 1988
4643600 Stabilizing device for hammer bounding at printers Feb. 17, 1987
4634303 Actuator for dot matrix printhead Jan. 6, 1987
4613243 Wire matrix printer with damping means Sep. 23, 1986
4603985 Backstop and damping apparatus for actuator Aug. 5, 1986
4569607 Printing hammer rebound control Feb. 11, 1986
4547087 Microprocessor-controlled printing mechanism having an opto-electronic sensor Oct. 15, 1985
4538930 Adaptive print hammer damper Sep. 3, 1985
4530280 Printing hammer assembly with a hammer dampener comprising two opposed permanent magnets Jul. 23, 1985
4529326 Print hammer for printers and typewriters Jul. 16, 1985
4523867 Bi-directional drive print wire actuator with forward-velocity and reverse-position closed loop feedback control Jun. 18, 1985
4522122 Fast impact hammer for high speed printer Jun. 11, 1985
4496253 Impact hammer Jan. 29, 1985
4430936 Striker mechanism for a high speed serial printer Feb. 14, 1984
4407194 Print hammer Oct. 4, 1983
4404901 Striker assembly for line printers Sep. 20, 1983
4401026 Free flight hammer for impact printer Aug. 30, 1983
4395945 Hammer bank assembly Aug. 2, 1983
4388861 Bank for accommodating several print hammer units Jun. 21, 1983
4360088 Dynamic rebound-resonance suppression Nov. 23, 1982
4348119 Bounce control system for moving coil printing element Sep. 7, 1982
4333398 Driving force control system for impact printer Jun. 8, 1982
4331077 Printing element with shock absorber feature May. 25, 1982
4329921 Damping device for an electromagnetically driven printing hammer May. 18, 1982
4313682 Final positioning vibration damping device for type disc typewriters Feb. 2, 1982
4306817 Bar code printing mechanism Dec. 22, 1981
4291992 Printer pin control circuitry Sep. 29, 1981
4279520 Print mechanism for wire printer Jul. 21, 1981
4273039 Impact printing apparatus and method using reluctance switching and a closed loop drive system Jun. 16, 1981
4269117 Electro-magnetic print hammer May. 26, 1981
4244288 Flying printer Jan. 13, 1981
4239401 Impact printer hammer assembly Dec. 16, 1980
4239403 Counterbalanced bidirectional shuttle drive Dec. 16, 1980
4205607 Constant pressure printing mechanism for portable label printing machine Jun. 3, 1980
4202638 Device for pointwise action on an information carrying medium May. 13, 1980
4201134 Printing pressure damping mechanism for hand labeler May. 6, 1980

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