Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 4316641 | Circuit for the shutdown of an anti-lockup protected vehicle brake unit in case of disturbance An improved vehicle wheel anti-lockup brake control system in which a shutdown signal is generated to disable the wheel anti-lockup control system in the event of a malfunction, as determined by the concurrent presence of a wheel slip signal and a low whe... | 02/23/1982 |
| 4313166 | Control system for improving the steering stability of motor vehicles equipped with antiskid brake systems An antiskid control system for the individual regulation of fluid brake pressure at the respective wheels of a vehicle. The control system is modified so that a steering wheel experiencing high wheel/road adhesion is co-controlled during a cycle of wheel ... | 01/26/1982 |
| 4304441 | Variable load valve device having adjustable bias means to withhold proportional brake control during low level brake requirements In a variable load valve device of the type employing a walking beam type lever arrangement via which the control and compensating pistons are interconnected to obtain proportional control of the brake pressure, there is provided an externally accessible ... | 12/08/1981 |
| 4302058 | Variable load valve device A vehicle load responsive control valve device in which the output pressure regulating valve assembly is controlled by multiple diaphragm pistons, which are arranged separately in tandem relationship and are operative responsive to the fluid pressure of d... | 11/24/1981 |
| 4300805 | Dual-circuit pressure medium operated braking system load-dependingly controlled for motor vehicles A dual-circuit, hydropneumatic brake conytrol system having a load proportioning function wherein the load condition sensed at the rear axle establishes the braking level at both axles. The front axle brake control is adjusted through either a pneumatic o... | 11/17/1981 |
| 4299428 | Automatic load-dependent brake control device having wide range of pressure adjustment In a variable load valve device of the type employing a walking beam type lever arrangement via which the control and compensating pistons are interconnected to obtain load-dependent control of the brake pressure, there is provided a screw adjustment that... | 11/10/1981 |
| 4299427 | Adjusting arrangement for variable load valve device A variable load valve device having a piston subject to air spring pressure that varies with vehicle loading to position a cam member formed on a control piston in accordance with the vehicle load condition. The cam member acts through a plunger or push r... | 11/10/1981 |
| 4293118 | Multi-function operator for control valve device An operting handle assembly for actuating a valve or the like including an adjustable actuating cam member that controls the degree of deflection of the valve to obtain different output pressures for a given handle position, for example, and an adjustable... | 10/06/1981 |
| 4279332 | Manual release mechanism for spring-applied parking brake A spring-applied, air-released parking brake, having a manual release mechanism with an automatic reset feature. To release a spring-applied parking brake, in the absence of air, a torsion bolt having a cam member formed on it is manually rotated to a pos... | 07/21/1981 |
