Communications: electrical – Continuously variable indicating – With meter reading
Patent
1994-02-18
1996-04-23
Bowler, Alyssa H.
Communications: electrical
Continuously variable indicating
With meter reading
34082533, 34030915, H04Q 118, G06F 704, G08B 2100
Patent
active
055107800
ABSTRACT:
A self-contained time cycled security code activation system for controlling a piece of power equipment includes a keyboard via which an activation security code is input into a microprocessor. The microprocessor controls an activation relay which selectively controls the equipment and it has stored therein a plurality of security codes which are time cycled via a real time clock. Thus, for example, a different security code can be automatically cycled for each lease or purchase payment interval, such as monthly. The lessee or purchaser is given only the security code or codes for which payment is current. A pair of LED's indicate the keyboard status, including an optional grace period during which the equipment remains operable. If the next month's code is entered during the grace period, the equipment remains operable for the next 30 days. In a second embodiment, the activation code is also a constant security code which is required to be input each time the equipment is used. In this optional arrangement, during the grace period, both the previous month's and the current month's code is valid. In either arrangement, once the grace period has expired, if timely payment has not been made, then the delinquent lessee or purchaser will no longer have access to activate the equipment. A "three strike" feature prevents someone from attempting to circumvent the activation code by randomly entering numbers.
REFERENCES:
patent: 3860911 (1975-01-01), Hinman et al.
patent: 3906447 (1975-09-01), Crafton
patent: 4348696 (1982-09-01), Beier
patent: 4477806 (1984-10-01), Mochida et al.
patent: 4624578 (1986-11-01), Green
patent: 4644104 (1987-02-01), Middlemiss
patent: 4700296 (1987-10-01), Palmer, Jr. et al.
patent: 4727369 (1988-02-01), Rode et al.
patent: 4805722 (1989-02-01), Keating et al.
patent: 4812841 (1989-03-01), Chen
patent: 4870400 (1989-09-01), Downs et al.
patent: 4970504 (1990-11-01), Chen
patent: 5043720 (1991-08-01), Laurienzo
patent: 5046157 (1991-09-01), Smith et al.
patent: 5056141 (1991-10-01), Dyke
patent: 5144659 (1992-09-01), Jones
patent: 5367572 (1994-11-01), Weiss
Martin Dan L.
Norris Ken D.
Bowler Alyssa H.
Profit Plus Corporation
Rinehart Mark H.
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