Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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 |
| 4116034 | Tool for assembling storage system A tool for attaching a support member formed with a hook member and a bendable tab member to a support post formed with a plurality of slots is disclosed. The tool is provided with a handle portion having an arcuate bending finger at one end and which is ... | 09/26/1978 |
| 4110829 | Apparatus for and method of determining rotational and linear stiffness A meter for determining stiffness or torque gradient including, in one embodiment, a deflectable coupling connected between an output shaft and a power input shaft, sensing means for developing two separate series of signals representative of the displace... | 08/29/1978 |
| 4088355 | Quick-acting fastener assembly A quick-acting fastener assembly for securing a hinged cover to a storage box wherein the components of the fastener assembly are retained on the box and cover respectively when the fastener is not secured. The fastener assembly is self-actuatable without... | 05/09/1978 |
| 4078634 | Lift apparatus and safety bracket usable therewith In the preferred embodiment of the invention disclosed herein a lift apparatus includes a load carriage movable along a mast member by a hoist means including a cable supporting the load carriage and connected to a drive means. Also included is a safety b... | 03/14/1978 |
| 4069575 | Method and apparatus for preloading a joint The invention disclosed herein relates to a fastener assembly and method of using same to preload a joint including a plurality of adjacent workpieces having aligned openings formed therein. The fastener assembly includes a pin member having an enlarged h... | 01/24/1978 |
| 4041600 | Method of assembling storage system A method of attaching a support member formed with a hook member and a bendable tab member to a support post formed with a plurality of slots is disclosed and comprises the steps of engaging the hook member in a slot on the post member such that a portion... | 08/16/1977 |
| 4042097 | Storage system A storage system in accordance with the preferred embodiment of the invention includes a support member formed with a first leg providing a track surface and a second leg extending at a generally right angle thereto and providing a guide surface. The seco... | 08/16/1977 |
| 4027530 | Simplified apparatus for and method of tightening fasteners The invention disclosed herein relates to a tightening system for tightening an assembly including a threaded fastener including a wrench for applying torque and imparting rotation to the fastener. Associated with the wrench is a control system including ... | 06/07/1977 |
| 4023406 | Tightening system with torque-time control The invention disclosed herein relates to a tightening system including a wrench for applying torque to a fastener system. Associated with the wrench is a control system including measuring means for developing a first signal representative of the torque ... | 05/17/1977 |
| 4012828 | Method of fastener assembly for preloading a joint A method and fastener assembly for preloading a joint wherein a pin having a shank and a head at one end is disposed with the shank portion passing through aligned apertures of a plurality of workpieces to be joined. The shank portion of the pin extends b... | 03/22/1977 |
| 4012622 | Method and apparatus for counting small parts A method of counting small parts by feeding the parts in bulk to discharge a stream of parts into a separating region leading to a plurality of outlet channels, the separating region including spaced rods capable of spatially distributing the parts in a r... | 03/15/1977 |
| 4008773 | Tightening system The preferred embodiments of the invention disclosed herein relate to a tightening system comprising a wrench for rotating and applying torque to a fastener system, means for developing a signal representative of the torque being applied and means for dev... | 02/22/1977 |
| 4008772 | Tightening system The preferred embodiments of the invention disclosed herein relate to a tightening system comprising a wrench for rotating and applying torque to a fastener system, means for developing a signal representative of the torque being applied and means for dev... | 02/22/1977 |
| 4005740 | Rotation resistant nut A rotation resistant nut having an internally threaded nut body and having a portion of the exterior surface of the nut body provided with an irregular configuration. The rotation resistant nut is adapted to be used as an insert-type nut and upon installa... | 02/01/1977 |
| 4000782 | Tightening system with quality control apparatus A tightening system for tightening a fastener is disclosed herein and includes a wrench for tightening the fastener, a control system for shutting off the wrench when the fastener has been tightened to a predetermined condition and a quality control syste... | 01/04/1977 |
| 3989081 | Method and apparatus for preloading a joint The invention disclosed herein relates to a fastener assembly and method of using same to preload a joint including a plurality of adjacent workpieces having aligned openings formed therein. The fastener assembly includes a pin member having an enlarged h... | 11/02/1976 |
| 3982419 | Apparatus for and method of determining rotational and linear stiffness A meter for determining stiffness or torque gradient including, in one embodiment, a deflectable coupling connected between an output shaft and a power input shaft, sensing means for developing two separate series of signals representative of the displace... | 09/28/1976 |
| 3982575 | Thread forming self-locking screw A thread forming and vibration resistant fastener having a shank with at least a portion of its length provided with an external thread. At least a portion of the thread has an irregular surface configuration on both of its flanks in the form of a plurali... | 09/28/1976 |
| 3977146 | Fastener bushing A fastener bushing for use in a panel structure consisting of a pair of spaced outer skins and a low density core therebetween is formed with an elongated shank adapted to be inserted through an opening in the panel. The shank has a longitudinal bore exte... | 08/31/1976 |
| 3974883 | Tightening system The invention disclosed herein relates to a tightening system including a wrench for applying torque and imparting rotation to a fastener system. Associated with the wrench is a control system including measuring systems for developing a first signal repr... | 08/17/1976 |
| 3974685 | Tightening system and method A tightening system and method and a fastener assembly usable therewith are disclosed in this specification. According to the method a fastener assembly is provided that causes a change in the slope of the torque-rotation curve which could be plotted whil... | 08/17/1976 |
| 3973434 | Tightening system with quality control apparatus A tightening system for tightening a fastener is disclosed herein and includes a wrench for tightening the fastener, a control system for shutting off the wrench when the fastener has been tightened to a predetermined condition and a quality control syste... | 08/10/1976 |
| 3972360 | Vibration resistant fastener A vibration resistant threaded fastener which may be a set screw or any other type of threaded fastener wherein the load bearing flank of the threaded surface of the screw is provided with a series of serrations. Each serration is formed with an inclined ... | 08/03/1976 |
| 3972361 | Threaded fastener A vibration resistant fastener such as a screw or bolt provided with a series of serrations on the load bearing flank of the thread of a screw or bolt so that the serrations will bear on the pressure flank of a mating thread. Each serration is formed with... | 08/03/1976 |
| 3972359 | Vibration resistant fastener A vibration resistant threaded fastener such as a set screw and method of forming the fastener wherein the load bearing flank of the thread surface of the screw is provided with a series of serrations. Each serration is formed with an inclined ramp termin... | 08/03/1976 |
| 3965778 | Multi-stage tightening system A sequential tightening system is disclosed in this application for tightening a plurality of fasteners to a final predetermined condition and includes a plurality of wrenches for tightening the fasteners and a control system operatively associated with e... | 06/29/1976 |
| 3958389 | Riveted joint A fastener for use in securing a stack of members together comprises a head adapted to be embedded in an outer surface of the stack and a shank adapted to extend through an aperture in the stack so that a tail projects beyond the other outer surface of th... | 05/25/1976 |
| 3939920 | Tightening method and system A tightening method and system for practicing same are disclosed herein for tightening a fastener to a desired axial load. According to the method, torque is applied to the fastener until it is tightened to its yield point and either the torque applied at... | 02/24/1976 |
