Jack Hawley designed a mouse whose two sealed motion-detector feet, like fat slanted wheels, eliminated the problem of dirt getting into the mouse. Hawley designed his rolling feet mechanism, in lieu of a mouse ball, to accommodate a round mouse design similar to one that was patented by designers at Digital Equipment Corporation. Hawley applied for patent for his mechanism in Patent 4,628,755.
The round mini-din connector from the DEC mouse plugged into a block on a cable which also accepted the RJ11 type plug from the keyboard and then connected both input devices to the computer. The mouse plug is similar to a PS/2 but configured differently. It was not made for a personal computer. The mouse is about 3-1/2" diameter with three buttons. The left and right buttons are ridged and the middle one is smooth.
The bottom embossing and labels read:
Model No.: VSXXX-AA.CO3 U.S. Pat. Pend. Copr. 1986 DEC All Rights Reserved DBP 1946/84 Made in U.S.A. FCC ID A0994Q VSXXX-AA (barcode) B021001127 HAWLEY (logo)™ [mouse ears & face in cross hairs]
Hawley designed an opto-mechanical two button mouse for the PC with sealed motion-detector feet instead of a tracking ball, on a similar principle as the DEC mouse. Four glide-pads let it slide on any smooth surface without a mouse pad. The mouse is about 4" x 2 1/2" with a rather high arc at the palm. A spherical indentation identifies the larger left button by touch.
When Key Tronic acquired Honeywell it acquired the mouse with two wheeled "feet" that was built on Hawley's design. Key Tronic continued to market it under its Honeywell brand. In 1994 Key Tronic revived a similar mouse under the name The Lifetime Mouse that allowed switching between two and three buttons, announced at $49. It was also marketed as Key Tronic School Mouse.
At the top of this mouse at the wrist edge, Honeywell is branded in relief. On other versions the brand parallels the bottom edge of the buttons.
The wheel sensors are place perpendicular to the long axis on this mouse. Another (older?) iteration places the wheels along the middle length of the mouse.
Jack Hawley's last mouse design made use of his two wheel tracking system which can be seen through the clear case. He called it Hot Rod.