WILLIAM DALE TISCHER
Pilots at Carlton Dr, Saint Paul, MN

License number
Minnesota A2891721
Issued Date
Jul 2016
Expiration Date
Jul 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
974 Carlton Dr, Saint Paul, MN 55126

Professional information

William Tischer Photo 1

Removable Media Spindle And Antenna Assembly For Printer

US Patent:
8127991, Mar 6, 2012
Filed:
Aug 3, 2007
Appl. No.:
11/833714
Inventors:
Peter G. Ross - Germantown WI, US
William D. Tischer - Shoreview MN, US
Robert F. Behlmer - Wauwatosa WI, US
Peter G. Scharpf - Hartford WI, US
Assignee:
Brady Worldwide, Inc. - Milwaukee WI
International Classification:
G06K 7/00
US Classification:
235439, 235375, 235451, 235487, 235492, 343876, 343893
Abstract:
A removable spindle for use in a thermal transfer printer houses dual RFID reader antennas that are used to read an RFID tag attached to the core of the print media. The information provided by the RFID tag enables the printer to self-calibrate based on the type of media loaded. The antenna design eliminates “null” areas at which the tag cannot be read, and enables the tag to be read around and across the entire length of the printer spindle. The design also allows the media holder to be easily removed from the printer.


William Tischer Photo 2

Removable Media Spindle And Antenna Assembly For Printer

US Patent:
8397997, Mar 19, 2013
Filed:
Jan 23, 2012
Appl. No.:
13/356014
Inventors:
Peter G. Ross - Germantown WI, US
William D. Tischer - Shoreview MN, US
Robert F. Behlmer - Wauwatosa WI, US
Peter G. Scharpf - Hartford WI, US
Assignee:
Brady Worldwide, Inc. - Milwaukee WI
International Classification:
G06K 19/06
US Classification:
235492, 235375, 235439, 235451, 235487, 343876, 343893
Abstract:
A removable spindle for use in a thermal transfer printer houses dual RFID reader antennas that are used to read an RFID tag attached to the core of the print media. The information provided by the RFID tag enables the printer to self-calibrate based on the type of media loaded. The antenna design eliminates “null” areas at which the tag cannot be read, and enables the tag to be read around and across the entire length of the printer spindle. The design also allows the media holder to be easily removed from the printer.


William Tischer Photo 3

Ribbon Wiper

US Patent:
2003015, Aug 21, 2003
Filed:
Feb 15, 2002
Appl. No.:
10/077685
Inventors:
William Tischer - Shoreview MN, US
International Classification:
B41J033/32
US Classification:
400/247000
Abstract:
Disclosed herein is a ribbon wiper that is disposed within a ribbon cartridge. The ribbon cartridge can contain a ribbon and be employed by a thermal printer. The ribbon wiper is capable of removing debris and other contaminants from a printhead surface of the ribbon. The printhead surface of the ribbon is that surface that faces the printhead, and opposes the ink surface of the ribbon, during printing. Debris disposed on the printhead surface of the ribbon can hinder or obstruct thermal contact between one or more thermal elements on the thermal printhead. In such cases, the thermal element can lack the ability to properly produce a dot on a media as instructed by the thermal printer. Further, debris disposed on the printhead surface of the ribbon can accumulate on the printhead proximate thermal elements and prevent generation of multiple or consecutive dots. If the collection of debris continues, thermal elements can ultimately be disabled causing voids, streaks, and scratches to undesirably appear in a printed image. Ribbon rollers can bias the ribbon toward, and upon, the ribbon wiper. Also, ribbon rollers, as well as a take-up roller, can supply tension to the ribbon to urge the ribbon toward, and upon, the ribbon wiper. Further, the ribbon wiper can be replaced simultaneously with the ribbon cartridge when the supply of ribbon within the ribbon cartridge is exhausted.