Boots – shoes – and leggings
Patent
1996-03-15
1998-05-12
Trammell, James P.
Boots, shoes, and leggings
701 1, 701 19, 701 36, 701117, 246 3, 246 5, B61L 2100, B61L 2700
Patent
active
057515697
ABSTRACT:
The invention relates to a method of controlling railroad train movement over a layout of railroad track that is defined geographically using a linear network of geographic control objects which includes signals, switches and track blocks. Each signal has signal control hardware and software logic, which logic includes an address, representation of signal condition, and the ability to initiate a change in signal condition. Each switch has switch control hardware and software logic, which logic includes an address, representation of switch condition, and the ability to initiate a change in switch condition. Each track block has hardware and software logic, which logic includes an address and a representation of track block occupancy condition. The method is specifically directed to establishing communication between each signal logic, switch logic, and track logic, and only its next adjacent logic neighbors regardless of whether it be signal logic, switch logic, or track logic. Such communication is limited to one of a plurality of predetermined messages, which messages either request a response relating to train movement or provide a response relating to train movement.
REFERENCES:
patent: 3794977 (1974-02-01), Thorne-Booth et al.
patent: 3836768 (1974-09-01), Clarke et al.
patent: 3976272 (1976-08-01), Murray et al.
patent: 4122523 (1978-10-01), Morse et al.
patent: 4284256 (1981-08-01), Norton
patent: 4323210 (1982-04-01), Elder
patent: 4641243 (1987-02-01), Hartkopf et al.
patent: 5006847 (1991-04-01), Rush et al.
patent: 5301906 (1994-04-01), Bodnar, II
patent: 5420883 (1995-05-01), Swensen et al.
Metel Omer
Pretorius Francois
Bui Bryan
Safetran Systems Corporation
Trammell James P.
LandOfFree
Geographic train control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Geographic train control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geographic train control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-988562