Key variable loader
United States Patent D390554

Larson, Kenneth Warren (Elmhurst, IL)
Simek, Robert F. (Lakewood, IL)
Scholtes, Ronald P. (Schaumburg, IL)
Application Number:
Publication Date:
Filing Date:
Motorola, Inc. (Schaumburg, IL)
Primary Class:
Other Classes:
D14/240, D14/299, D14/347
Field of Search:
D14/100, D14/107, D14/114, D14/116, D14/137, D14/138, D14/140, D14/142, D14/147, D14/148, D14/240, D14/242, D14/188, D14/126, D14/114.5, D14/299, 348/14, 348/15, 380/21, D13/168, D13/184, 174/52.3, 379/433-436, 379/419, 379/420, 379/428, 379/440, 379/441, 379/442, 455/550, 455/575, 455/90, 455/347, 455/349, 455/500, 455/556
View Patent Images:
US Patent References:
D382867Icon of a key variable loader for a computer display screenAugust, 1997ArnoneD14/114.5
5550324Environmental sealing system for electronic instrumentsAugust, 1996Black et al.174/52.3
D369786Portable data terminal with rotatable headMay, 1996HagertyD14/100
D367648Hand-held computer unitMarch, 1996Smith et al.D14/138
5485504Hand-held radiotelephone with video transmission and displayJanuary, 1996Ohnsorge348/15
D363470Combined input and output device for a programmable controllerOctober, 1995YamamotoD14/100
D356079Portable LCD color television receiverMarch, 1995ObaD14/126
D340927Portable radio transceiverNovember, 1993GoatmanD14/137
5185795Authentication of rekey messages in a communication systemFebruary, 1993Bright380/21
5173938Key management systemDecember, 1992Steinbrenner et al.380/21
D325574Hand held data collection terminal with integral diode laser scannerApril, 1992CarverD14/100
5093860Key management systemMarch, 1992Steinbrenner et al.380/21
4845650Ticket issuing systemsJuly, 1989Meade et al.D13/168
D292401Hand held digital communicator housingOctober, 1987Lee et al.D14/188

Other References:
"DES and DES-XL Encryption and Key Variable Loader" brochure published in 1994 by Motorola, Inc.
"DVP-XL Encryption and Key Variable Loader" brochure published in 1994 by Motorola, Inc.
Primary Examiner:
Asch, Jeffrey
Attorney, Agent or Firm:
Egan, Wayne J.
1. The ornamental design for a key variable loader, as shown.


FIG. 1 is a left, front and top perspective view of our design;

FIG. 2 is a right side elevation of our design;

FIG. 3 is a rear elevation of our design; and,

FIG. 4 is a bottom plan view of our design.

The broken line showings of FIG. 4 is for illustrative purposes only and forms no part of the claimed design.