Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4541365 | Method and apparatus for supplying feedwater to a forced flow boiler An apparatus and method of supplying feedwater to a forced flow boiler or the like as described. A positive displacement pump having a plurality of discrete pumping elements is arranged to pump feedwater from an inlet to the boiler. The pump includes bypa... | 09/17/1985 |
| 4395679 | Single sensor engine analyzer with noise rejection and automatic triggering circuit An internal combustion engine analyzer is described which permits analysis to be performed by attaching one sensor to the engine circuit. Timing at idle, engine speed, plug firing parade, etc., can be performed with only one sensor connected to the engine... | 07/26/1983 |
| 4324133 | Torque measuring device A torque measuring device is disclosed wherein a torque of a rotating member rotating about an axis is measured. The device includes a support member which is attached to a fixed object such as a stationary frame by at least two linkage arms. Each linkage... | 04/13/1982 |
| 4216710 | Vehicle exhaust handling system An improved vehicle exhaust handling system capable of accomodating vehicles of varying sizes while maintaining optimal exhaust capabilities is disclosed. A motor vehicle with its engine operating is positioned in a test center in a predetermined location... | 08/12/1980 |
| 4051814 | High pressure washer A pressurized hot fluid washer includes a combination pumping unit driven by a closed hydraulic system which applies driving impulse forces to an interlocked liquid pump member and a fuel pump member. The liquid pump and fuel pump are hydraulically interl... | 10/04/1977 |
| 4044609 | Wheel-engaging roller structure for vehicle testing apparatus A roller is disclosed which is intended to have frictional engagement with a vehicle wheel during a testing operation and which is constructed by welding together: a central supporting shaft, a plurality of outwardly-extending axially-spaced supporting di... | 08/30/1977 |
| 4024756 | Computer type brake analyzer An apparatus for analyzing the performance of wheeled, land vehicle brake systems is described wherein means are provided for driving the vehicle wheels at a predetermined speed and the operator or computer controlled brake actuator selectively applies th... | 05/24/1977 |
| 4006403 | Engine performance analyzer An internal combustion engine performance analyzer is described for providing a numerical value representing certain operating characteristics such as spark plug ionization voltage, points closed voltage drop, alternator ripple output voltage and voltage ... | 02/01/1977 |
| 3998095 | Method and apparatus for quickly evaluating engine exhaust gas emissions Modal test method and apparatus is described for use in automotive engine plants, vehicle inspection stations, diagnostic centers, etc., for quickly, accurately and repeatably measuring the principal air contaminants; i.e., carbon monoxide (CO) and hydroc... | 12/21/1976 |
| 3995475 | Computer type brake analyzer with automatically controlled brake actuator An apparatus for analyzing the performance of wheeled, land vehicle brake systems is described wherein means are provided for driving the vehicle wheels at a predetermined speed and the operator or computer controlled brake actuator selectively applies th... | 12/07/1976 |
| 3991609 | Brake testing apparatus and method incorporating hydraulic position-sensitive subsystem A brake testing apparatus and method are disclosed which utilize a hydraulic subsystem as a stroke-limiting memory unit and as a position-holding means during the brake test sequence. The hydraulic subsystem is designed for inclusion in a brake testing me... | 11/16/1976 |
| 3987130 | Steam and water blending system for steam vaults Apparatus for blending dry or slightly moist steam with water to produce wet steam of 20% to 70% moisture content by weight for treating logs or other objects in a closed steam treatment vat or vault. The apparatus includes a blender having a mixing chamb... | 10/19/1976 |
| 3982428 | Grooved wheel-contact rollers for vehicle testing apparatus Wheel-contact rollers for a vehicle test-bed have helical grooves formed in their outer surfaces to improve start-up friction by providing fast removal of water and other foreign materials from tire surfaces. The grooves are preferably formed by a thread-... | 09/28/1976 |
| 3982429 | Computer type brake analyzer An apparatus for analyzing the performance of wheeled, land vehicle brake systems is described wherein means are provided for driving the vehicle wheels at a predetermined speed and the operator or computer controlled brake actuator selectively applies th... | 09/28/1976 |
| 3977241 | Actuator unit for vehicle brake testing A portable vehicle testing unit which can be placed on the floor of the driver's compartment of any vehicle to be tested and which can be adjusted to the toeboard of the vehicle in such a way that a fluid pressure actuator mounted on the testing unit is a... | 08/31/1976 |
| 3974687 | Rate control system for a brake testing apparatus A rate control system is disclosed for use in a brake testing apparatus which applies an automatically controlld force to the vehicle braking system being tested. The rate control system varies the rate of flow of hydraulic fluid displaced as the brake pe... | 08/17/1976 |
| 3974688 | Computer type brake analyzer An apparatus for analyzing the performance of wheeled, land vehicle brake systems is described wherein means are provided for driving the vehicle wheels at a predetermined speed and the operator or computer controlled brake actuator selectively applies th... | 08/17/1976 |
| 3972654 | Diaphragm pump boiler feed water system A hydraulic fluid control system regulates the delivery rate of feed water to a boiler. A hydraulic actuated diaphragm pump having a plurality of diaphragm working chambers which are interconnected with check valve controlled inlets and outlets pumps the ... | 08/03/1976 |
| 3965732 | Computer type brake analyzer An apparatus for analyzing the performance of wheeled, land vehicle brake systems is described wherein means are provided for driving the vehicle wheels at a predetermined speed and the operator or computer controlled brake actuator selectively applies th... | 06/29/1976 |
| 3965731 | Roller brake tester A roller type brake testing device is disclosed which incudes two pairs of cradling rollers for supporting and applying a driving torque to two wheels of a vehicle such as an automobile. The testing device includes a pneumatic lift mechanism for selective... | 06/29/1976 |
