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Class 400/124.26 - Specific material


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein significance is attributed to the
No. of patents: 6
Last issue date: 09/17/1996


NumberTitleIssue Date
555621124 pin dot printer head and method of making the same
A method for manufacturing a print wire for a 24-pin dot printer head comprises the steps of first annealing an oil temper thin elongated wire rod at a predetermined rate to remove internal strains and eliminate distortions and imperfections after the oil...
09/17/1996
5401107Component of printing head for wire-impact type dot printer and molding method thereof
Disclosed are a magnetic circuit component of an impact dot head and a molding method thereof by which the number of parts is reduced, and an excellent magnetic efficiency is exhibited. At least one member among a plurality of members constituting a magnetic ...
03/28/1995
4832516Dot matrix print head
A wire guide tip in a wire dot printer is made of ceramic and is integrally formed with the front wire guide and inserted during mold processing of the front wire guide....
05/23/1989
4720201Printer guide member
A printer guide member for guiding print wires in a dot matrix printer, which comprises a thin ceramic sintered body containing 60% by weight or more of Si3 N4 and having a plurality of guide holes perforated therethrough. In additio...
01/19/1988
3991870Replaceable composite wire guide assembly
The print head in a high-speed printer of the dot matrix type is provided with a bearing comprising an element fixedly attached to the front wall of a plastic block. The element is made of a material substantially harder than plastic, such as metal or a j...
11/16/1976
3991871Print head and plastic bearings therefor
A print head for impact printers of the dot matrix type comprising a hollow die cast housing having solenoids mounted upon a rear wall thereof and having print wires driven thereby and extending through the rear wall and hollow housing toward the forward ...
11/16/1976
 
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