Abstract A braking system method and apparatus for the type having a controller regulating the degree of brake application, an air valve, a pressure source whose application is governed by the air valve and including a dynamic braking means having load means connected across the dynamic braking motors, a lock-out magnet determining the application of the fluid pressure and an air brake whose employment is governed by the lock-out magnet the improvement comprising a pressure switch communicating with the pressure in the air brake and set at a predetermined pressure level; coupling means located between the load and the dynamic braking means for disconnecting the load means; and a conductor connected between said pressure switch and said coupling means so that when the lock-out magnet fails to regulate the application of the fluid pressure brakes and the dynamic braking motors, at the predetermined pressure level said switch sends an electrical signal through said conductor causing said coupling means to disconnect the load means from the dynamic braking motors.
Inventors
👤 John Kessler
👤 Joseph Franco
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-30 16:35
CPC Classifications
B; B61; B61H; B61H11/00; B61H11/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
192 words
In a vehicle braking system of the type having a controller regulating the degree of brake application, an air valve, a pressure source whose application is goverened by the air valve, and including a dynamic brake having a load electrically connected across the dynamic braking motors, a lock-out magnet determing the application of the fluid pressure to an air brake in response to the dynamic brake, the air brake Being connected through a pressure line to the output of the lock-out magnet, wherein the improvement comprises: a pressure switch connected to the pressure line at the output of the lock-out magnet for sensing the pressure in the air brake said switch being set at a predetermined pressure level; a solenoid located between the load and the dynamic brake for electrically disconnecting the load; and a conductor connected between said pressure switch and said coupling means so that when the lock-out magnet fails to regulate the application of the fluid pressure brakes and the dynamic braking motors, at the predetermined pressure level said switch sends an electrical signal through said conductor causing said solenoid to disconnect the load from the dynamic braking motors.
Claim 2
Dependent Claim
192 words
In a vehicle braking system of the type having a controller regulating the degree of brake application, an air valve, a pressure source whose application is goverened by the air valve, and including a dynamic brake having a load electrically connected across the dynamic braking motors, a lock-out magnet determing the application of the fluid pressure to an air brake in response to the dynamic brake, the air brake Being connected through a pressure line to the output of the lock-out magnet, wherein the improvement comprises: a pressure switch connected to the pressure line at the output of the lock-out magnet for sensing the pressure in the air brake said switch being set at a predetermined pressure level; a solenoid located between the load and the dynamic brake for electrically disconnecting the load; and a conductor connected between said pressure switch and said coupling means so that when the lock-out magnet fails to regulate the application of the fluid pressure brakes and the dynamic braking motors, at the predetermined pressure level said switch sends an electrical signal through said conductor causing said solenoid to disconnect the load from the dynamic braking motors.
Claim 3
Dependent Claim
27 words
In a vehicle braking system of the type recited in claim 1, wherein the load electrically connected across the dynamic braking motors includes heat dissapating ballast resistors.