Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
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 |
| 4075848 | Hydraulic brake booster A hydraulic brake booster of the type utilizing pressurized fluid supplied to a hydraulic power steering device, wherein a flow regulating valve is adapted to rapidly increase the pressure in a power chamber of the booster in response to actuation of the ... | 02/28/1978 |
| 4074531 | Oleodynamic servo control A load-controlling piston of the double-action type, dividing an associated cylinder into two compartments, is positionable by a hydraulic servomechanism comprising a block wherein a high-pressure supply port and a low-pressure discharge port communicate ... | 02/21/1978 |
| 4057301 | Brake system A differential pressure brake system for a vehicle with one master cylinder and booster assembly operating the rear wheel brakes and another such assembly operating the front wheel brakes. Each booster is controlled by its own valve, which is in turn cont... | 11/08/1977 |
| 4052855 | Brake master cylinder construction Dual master cylinders are arranged to apply hydraulic pressure to a single set of vehicle brakes through a double check valve and single brake fluid conduit. A first of the master cylinders is actuated by compressed air in response to manipulation of an o... | 10/11/1977 |
| 4043533 | Auxiliary closing force for valves A valve having a valve stem in the form of an actuating rod connected with a hydraulic piston in an hydraulic cylinder and an air piston in an air cylinder and which is closed by a spring has a system for assisting the spring in closing the valve and in m... | 08/23/1977 |
| 4024884 | Closing assist for valves A shutoff valve in a line containing fluid under pressure which after being closed is held closed by another fluid under pressure. The other fluid is one such as air which is available at the valve.... | 05/24/1977 |
| 4020636 | Master cylinder assemblies In a master cylinder assembly a booster valve assembly is adapted to control two separate supplies of booster fluid, and each supply is capable of advancing a modulator piston independently to operate a master cylinder.... | 05/03/1977 |
| 4012080 | Pneumatic to hydraulic converter with integral dump chamber A pneumatic to hydraulic booster having an integral skid control means is disclosed. The skid control means includes a dump chamber and a dump valve, with the dump chamber being integrally formed within the housing of the pneumatic to hydraulic booster. A... | 03/15/1977 |
| 4007593 | Motor vehicle open center series hydraulic circuit A motor vehicle fluid power circuit is disclosed which includes a primary pump, a closed center brake booster, and an open center steering valve. These components are hydraulically connected in series with the fluid flowing from the pump to the closed cen... | 02/15/1977 |
| 4006664 | Steering system including tandem hydraulic cylinders with self-synchronization The invention is especially suitable when front and rear wheels are hydraulically steered, each set by its own hydraulic cylinder, the two cylinders being connected in hydraulic tandem so that the same angularity of steering will be imparted to both sets ... | 02/08/1977 |
| 3995529 | Reserve system activation and modulation for hydraulic feedback brake boosters A hydraulic brake booster is disclosed which is normally actuated by a primary pressure source, but which may be actuated by a secondary pressure source during failure of the primary pressure source. The booster includes a spool valve which controls commu... | 12/07/1976 |
| 3979912 | Brake booster utilizing a pump of a power steering device A brake booster utilizing a pump of a power steering device includes a source of fluid pressure, a cylinder, a power piston slidably disposed within the cylinder, a manual piston also slidably disposed within the cylinder, an actuating chamber formed betw... | 09/14/1976 |
| 3978667 | Hydraulic brake booster A hydraulic brake booster for use with an open center-type power steering system includes, upon the application of the vehicle brakes, a relief valve piston mechanism for setting the fluid pressure greater than the fluid pressure being previously circulat... | 09/07/1976 |
| 3977194 | Device for fine adjustment of the tool seat of a machine tool A pressure transducer formed as a three-dimensional body is rendered flexible in order to permit fine adjustment of a machine tool seat formed thereon by the formation of holes and slits in the transducer body which cause portions of the body to operate a... | 08/31/1976 |
| 3977193 | Hydraulic braking force multiplying device A hydraulic braking force multiplying device has a: A body coupled to a master cylinder; A projecting portion provided in the body and projecting toward the master cylinder; A cup-shaped power piston one open end of which receives the outer periphery of the pr... | 08/31/1976 |
| 3948051 | Fluid pressure amplifier A fluid pressure amplifier for intensifying fluid pressure, the amplifier comprising a housing including a gas-hydraulic interface piston; a first chamber includes a slave piston mounted for reciprocation therein and for abutting engagement with a work pi... | 04/06/1976 |
| 3948486 | New device for applying a determined force to an element connected to an installation subjected to alternating movements This device comprises in combination means for passive compensation of the alternating movements of the installation, comprising at least one articulated jack connected to a source of pressurized fluid, and complementary means for fine compensation, these... | 04/06/1976 |
