Class 411/366.3 - Threads having a specific pitch or angle

Subclass of Class 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
Definition: Subject matter wherein the headed fastener with nut in
No. of patents: 27
Last issue date: 11/22/2011

Number	Title	Issue Date
8061946	Threaded assembly comprising internal thread member, and external thread member The present invention provides an internal thread member and an external thread member that can achieve stable finishing accuracy, can assure a desirable thread overlap, and have sufficient breaking strength and pullout strength. This invention also provides a cutte...	11/22/2011
7731466	Thread profile modification for controlled stiffness The thread form can provide a controlled thread stiffness which can more evenly distribute loads and can be less sensitive to changes in relative pitch. The controlled stiffness of the thread can provide a desired cantilever bending of the thread under assembled loa...	06/08/2010
7252150	Downhole tool A downhole tool including a selectively releasable joint, a downhole drilling assembly including the downhole tool, and a corresponding method. In one embodiment of the invention, a downhole drilling assembly includes a downhole tool having a first body and a second...	08/07/2007
7090454	Ratchet interlocking housing A fastener, such as a housing, for mounting to a structure, such as a panel, that has an aperture formed therethrough. The fastener includes a shank member and an annular nut member that is configured to align coaxially with the shank member. The shank member is ins...	08/15/2006
6832882	Fastener A ratcheting fastener system such as for point of purchase displays. A bolt has a shank with a head end and a distal end, and a plurality of bolt threads on the shank, each thread having a thread start at the distal end. A nut has a bore with a plurality of thread s...	12/21/2004
5788441	Lightweight, compact, threaded fastener and thread rolling die for making same The present invention provides an improved, lightweight, compact threaded fastener that has a relatively shortened transition thread rollout zone between the grip of the fastener and the threaded shank of the fastener. This transition zone is shortened du...	08/04/1998
5738472	Modified locking thread form for fastener A threaded fastener has a standard part with a standard thread form characterized by thread walls with a standard included angle, and a modified part complementary to the standard part having a modified thread form characterized by thread walls which are ...	04/14/1998
5722808	Threaded fastener system A fastener system capable of clamping a workpiece that provides for enhanced distribution of the internal forces that are generated in the components as a result of the assembly of the system. The fastener system includes an externally threaded member hav...	03/03/1998
5669746	Fastener having spiral shaped collar portion An improved fastener comprising a head portion, a flange portion, a shank portion which extends through two aligned apertures formed in adjacent panels and a collar swaged on the shank portion. The shank portion includes a gripping portion having a plural...	09/23/1997
5636956	Fastener and screw means therefor A fastener is a screw having a threaded shaft, and a fastening strip or sheet having a raised portion provided with an aperture being preformed to have an at least partly helical threadform-defining edge shaped and dimensional to matingly receive the thre...	06/10/1997
5437526	Arrangement for anchoring a rod-shaped tension member of composite fiber material An anchoring arrangement for use in underground mining or foundation work or as a reinforcing element for concrete includes a rod-shaped tension member of composite fiber material which has, over at least an anchoring portion thereof, a helically extendin...	08/01/1995
5413445	End link and swivel assemblies for chaincables An end link and swivel assembly for chaincables, wherein the end link comprises a drilled head followed by a threaded pin which is rotatingly mounted on a passage formed at the link and secured by an adjusting nut. The pin and nut threads are of the round...	05/09/1995
5413442	Bolt-nut assembly for railroad crossing frogs An improved railroad frog bolt-nut assembly is disclosed. The bolt has a square head and a shank. The shank has an unthreaded portion adjacent the head and a threaded portion at its terminal end. The threaded portion is rolled to a diameter equal to the s...	05/09/1995
5405227	Fasteners made of composite material of a ceramic matrix reinforced with refractory fibers Fasteners composed of a composite material constituted by a ceramic matrix reinforced with refractory fibers for use in the assembling and dissembling of structures likely to be subjected to high temperatures. The fasteners, which can comprise screws, nut...	04/11/1995
5320467	Positive thread start fastener A fastener includes an annular body having a screw thread spiraling therearound. The thread has a crest and a pair of front and back flanks extending laterally therefrom, with a start end disposed adjacent to a front end of the body. The start end is flat...	06/14/1994
5163523	Screw thread structure for percussion drill driver sub and case A driver sub and a case for enclosing a piston chamber of a percussion drill are threadedly connected by respective identical male and female screw threads. Each of the identical male and female screw threads includes a root portion, the shape of which is...	11/17/1992
5131204	Reinforcing steel connection A sleeveless screw connection between two reinforcing steel elements includes a conical tapped hole in one end of one of the elements, and a conical externally threaded end on the other element. The surface of each thread envelope makes an angle of betwee...	07/21/1992
5056611	Screw thread structure A screw thread structure includes a root portion, the shape of which is defined by portions of two axially overlapping ellipses interconnected by a flat....	10/15/1991
5039265	Lightweight fastener An aerospace fastener comprises a blot with a roll-formed thread, and a nut with a similar thread having a uniform pitch P. The bolt has a cylindrical shank, a threaded tip and a run-out zone between the shank and tip. The thread root in the run-out follo...	08/13/1991
5000637	Fastening device with circumferential ribs and method for manufacturing the same A fastening device uses a ribbed rivet to secure two materials together. The ribs on the rivet should have a height no greater than 0.005 inches on most plastics and be of a close proximity. This rivet can be pushed directly into, or pulled directly out o...	03/19/1991
4915559	Lightweight fastener An aerospace fastener comprises a bolt with a roll-formed thread, and a nut with a similar thread having a uniform pitch P. The bolt has a cylindrical shank, a threaded tip and a run-out zone between the shank and tip. The thread root in the run-out follo...	04/10/1990
4907926	Thread form and fastener system using the form A modified buttress thread has a root diameter equal to substantially Ýa;0.7 of the core diameter with a pitch substantially equal to 1/6 of the core diameter. The thread root extends parallel to the axis of the fastener as a surface and transitions i...	03/13/1990
4861209	Threaded coupling A threaded coupling for a high frequency percussion drill assembly comprises a rod and a sleeve having external and internal threads, respectively. The threads are of the asymmetrical type and make contact along opposing shoulder portions disposed on only...	08/29/1989
4850775	Screw-type fastening device A screw-type fastening device including a male threaded element such as a bolt and a female threaded element such as a nut in which each element contains continuous helical root and crest disposed therein wherein the root and crest include cone-shaped cre...	07/25/1989
4842466	Lightweight fastener An aerospace fastener comprises a bolt with a roll formed thread, and a nut with a similar thread having a uniform pitch P. The bolt has a cylindrical shank, a threaded tip and a run-out zone between the shank and tip. In the run-out, which is no longer t...	06/27/1989
4840526	Gripping device for tensioning screwing elements A gripping device for tensioning a screwing element (2) which, at its free end, has an outer profile matching the inner profile of an engaging member (4). The screwing element (2) has an outer profile with teeth (20) of constant pitch and of constant cros...	06/20/1989
4810149	Screw-type fastening device A screw-type fastening device including a male threaded element such as a bolt and a female threaded element such as a nut in which each element contains a continuous helical root and crest disposed therein wherein the root and crest include V-shaped cres...	03/07/1989

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Class 411/366.3 - Threads having a specific pitch or angle