Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7338242 | Quick-connect fastener assembly A fastener assembly includes a washer element and a nut element. The nut element is split and includes a screw thread that threadably engages the thread of a bolt or other such fastener element to lock the nut to the bolt. The nut element is adapted by the split to ... | 03/04/2008 |
| 7189044 | Locking nut and bolt system with enhanced locking The locking nut and bolt system includes an elongated locking unit, mounted in a nut and operative with a specially configured groove bolt. The locking unit includes a plurality of at least three tines, asymmetrically located, which protrude tangentially and general... | 03/13/2007 |
| 7125026 | Cam-bolt assembly A cam bolt assembly for using in a vehicle's suspension system to adjust the vehicle's wheel alignment having a threaded fastener defining a pair of longitudinal channels, a first cam plate is coupled to the threaded bolt, a second cam plate defining an aperture is ... | 10/24/2006 |
| 6994503 | Quick-lock nut for a disc-like tool A quick lock nut (1) for positive friction locking securement of a disc-like tool (2) to an external thread (3) on a working spindle (4) driven about an axis of rotation (A), having an associated inner threaded part (5) and a manua... | 02/07/2006 |
| 6905297 | Locking nut, bolt and clip systems and assemblies The locking nut and bolt system utilizes a bolt with thread having a plurality of notches generally longitudinally spaced in a predetermined pattern. Each notch has a lock face and an opposing slope. The locking unit carries one or more tines. The tine has a distal ... | 06/14/2005 |
| 5020953 | Lock nut A lock nut with a nut and an annular flat plate made of resilient material, the annular flat plate having a circumferential periphery and an arcuate protrusion, wherein the circumferential periphery is secured on one surface of the nut, and the arcuate pr... | 06/04/1991 |
| 4941769 | Structure for fastening a resin member with a threaded bolt A structure for fastening a resin member to a base member typically composed of a metallic material with a threaded bolt passed through holes provided in the resin member and the base member, comprising a metallic sleeve through which the bolt is passed f... | 07/17/1990 |
| 4818578 | Composite structure attachment system A load-bearing member is positioned in a slot extending through a composite structure of laminated reinforced plastic having overlapping layers of fabric plies embedded in a thermoplastic material. A connecting means such as a shank of a bolt connects the... | 04/04/1989 |
| 4790703 | Prevailing torque fastener assembly A tri-lobular section of a bolt receives a mating tri-lobular bore of a washer to prevent the washer from rotating. Roll formed male threads on the tri-lobular section of the bolt receive a cooperating nut. The nut has a base shaped for wrench engagement,... | 12/13/1988 |
| 4619568 | Heat recoverable locking device A retaining member (26) is constructed undersized from a memory metal for permitting a member (26) disposed in an element retaining position to recover and grippingly engage a stud (12) on which the member (26) is arranged. The retaining member (26) can b... | 10/28/1986 |
| 4294559 | Pre-stressed structural joint The following specification discloses the use of a nickel titanium alloy component referred to as Nitinol for purposes of providing a pre-stressed structure. The alloy component provides stiffness to shell structures and tubular members such as oil well p... | 10/13/1981 |
| 4254809 | Two-piece rivet A two-piece rivet assembly comprising a shank member and a collar. The shank member includes a head, a cylindrical shank, and a helical thread with a substantially constant pitch, but with a crest diameter which decreases as it extends away from a maximum... | 03/10/1981 |
| 4248285 | Safety nut and method for making A safety nut comprises an axial extension in which an elastic safety element is disposed. In one embodiment the element comprises a wire spring clip whose legs are tangent to a central thread of the nut so that a bolt threaded onto the nut flexes the legs... | 02/03/1981 |
| 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 |
| 3962744 | Locking and sealing washer apparatus Windshield wiper coupling, including a tubular member having a threaded portion extending through a hole in an automotive vehicle structural part. A rotatable member extends through the tubular member and is connected at opposite ends to the wiper and to ... | 06/15/1976 |
