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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 6338398 | Vehicle with braking force retaining unit A vehicle with a braking force retaining unit, which retains braking force after releasing the brake pedal, wherein driving force of the vehicle is increased if displacement of the vehicle is detected while the braking force retaining unit is in operation... | 01/15/2002 |
| 5558123 | Electrically controlled pressure-holding valve A pressure-holding valve for a brake system having a body with a blind bore therein. The body has a first passage which connects the blind bore with a variable pressure inlet port and a pressure outlet port. The blind bore is closed by seals carried on a ... | 09/24/1996 |
| 4925252 | Automobile brake system An automobile brake system includes a master cylinder, a wheel cylinder and a solenoid actuated valve between the master cylinder and the wheel cylinder. The solenoid actuated valve is actuatable for maintaining high fluid pressure in the wheel cylinder a... | 05/15/1990 |
| 4921082 | Fluid control cylinder assembly for automobile brake system A brake fluid control cylinder assembly for use in a brake system of an automobile comprises a cylindrical housing, two coaxially-spaced chambers therein and an internal flange wall therebetween, a coaxial opening in the flange wall, front and rear piston... | 05/01/1990 |
| 4915131 | Hill-holder This invention relates to a hill-holder which prevents backward rolling of a vehicle when starting the vehicle on a hill facing upwardly. The hill-holder comprises a solenoid valve assembly having a cylindrical core, in its central portion and a bobbin su... | 04/10/1990 |
| 4802563 | Braking force holding device for an air brake system A braking force holding device for an air brake system, maintains a braking force when a vehicle is stopped facing upwardly on a hill to facilitate the start of the vehicle on the hill. The braking force holding device includes a main body having an inlet... | 02/07/1989 |
| 4658942 | Liquid pressure operated braking system A liquid pressure operated braking system comprises a valve assembly with a first valve operatively coupled to a clutch pedal for confining the liquid pressure applied to the associated group of wheel cylinders when the clutch pedal is depressed and a sec... | 04/21/1987 |
| 4515259 | Clutch-operated hill holder brake system A brake control device for preventing backward movement of a vehicle on an uphill road during operation of the clutch pedal after release of the brake pedal, the device including a cylinder body having oil passages for connection between the master cylind... | 05/07/1985 |
| 4457412 | Brake control mechanism A brake control mechanism (14) includes a housing (20) with a stepped bore (22). A valve member (44) cooperates with a seat (46) to close communication from a master cylinder (10) to a brake assembly (12) when a vehicle is going up a hill. An actuator ass... | 07/03/1984 |
| 4018314 | Anti-theft vehicle brake-supervising device A vehicle anti-theft device which maintains the braking function of the braking fluid by preventing reverse flow thereof through a closed main valve opening from the wheel cylinder back to the master cylinder until, following an authorized procedure, the ... | 04/19/1977 |
