Boots – shoes – and leggings
Patent
1990-06-06
1992-04-28
Lall, Parshotam S.
Boots, shoes, and leggings
73490, 246177, 246182C, 246184, 246185, 36442404, 36442601, 364561, 364578, B61L 300, B61K 908
Patent
active
051093430
ABSTRACT:
A braking distance verification system is disclosed which makes use of a specially designed pulse to voltage converter circuit and a portable computer-based data acquisition system to measure grade, speed, and distance information of any rail vehicle. The preferred embodiment of the device is particularly adapted for mass transit systems. It provides a method and apparatus for physical verification, under actual test conditions, that an adequate braking distance has been provided in each block of a signal block design system. The portable system may be used with any vehicle braking system which provides an electronic wheel tachometer or equivalent, or may utilize a portable doppler radar if tachometer information is not available.
REFERENCES:
patent: 2340403 (1944-02-01), Morley et al.
patent: 4057712 (1977-11-01), Sakakibara et al.
patent: 4181943 (1980-01-01), Mercer, Sr. et al.
patent: 4234922 (1980-11-01), Wilde et al.
patent: 4241403 (1980-12-01), Schultz
patent: 4279395 (1981-07-01), Boggio et al.
patent: 4302811 (1981-11-01), McElhenny
patent: 4495578 (1985-01-01), Sibley et al.
patent: 4561057 (1985-12-01), Haley, Jr. et al.
patent: 4853883 (1989-08-01), Nickles et al.
Lall Parshotam S.
Pipala E. J.
Union Switch & Signal Inc.
LandOfFree
Method and apparatus for verification of rail braking distances does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for verification of rail braking distances, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for verification of rail braking distances will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1252675