Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 7309199 | Sprue dowel A sprue dowel has a radially projecting embeddable portion (12) and an attachment portion (21) formed as a hollow cylindrical shaft (24) provided with a plurality of spaced from each other, furrowed retaining projections (26, 27) formed o... | 12/18/2007 |
| 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 |
| 7165925 | Self adjusting, high strength, screw system A fastener system and method of inserting it, that includes a screw or bolt having two interleaved helical threads, which brackets or forms a groove for a helicoil. The helicoil expands and torques by various means to maintain hold and purchase between the screw coi... | 01/23/2007 |
| 7140824 | Tensioning hydraulic nuts A hydraulic tensioning system for nuts on studbolts has a puller bar and a puller buddy, which are coupled to the studbolt, and a bridge around the nut. The puller bar is internally coupled to the studbolt (and may engage the nut before the tension is applied). The ... | 11/28/2006 |
| 6976818 | Threaded fastener particularly suited for plastics A male threaded fastener particularly suited for use in plastics has a high thread and a low thread. Depressions are provided in the pressure flank of the high thread. Dimensional relationships are defined for scaling the fastener to commonly accepted sizes. ... | 12/20/2005 |
| 6974289 | Pressure flank screw and fastening system therewith A male threaded fastening member is provided with depressions in at least one or several helix wraps of the thread adjacent the head, the depressions extending inwardly from an edge of the thread at least part way toward a shank of the male fastening member. In a fa... | 12/13/2005 |
| 6926286 | Gasket holding device To obtain a gasket holding device which is unlikely to slip out of a bolt and facilitates mounting of the bolt thereon, a bolt mounting hole made in a metal plate constituting the gasket holding device is provided with an engaging portion which engages the bolt. Thi... | 08/09/2005 |
| 6908465 | Distal bone anchors for bone fixation with secondary compression Disclosed is a bone fracture fixation device, such as for reducing and compressing fractures in the proximal femur. The fixation device includes an elongate body with a helical cancellous bone anchor on a distal end. An axially moveable proximal anchor is carried by... | 06/21/2005 |
| 6863483 | Screw provided with self-locking thread Screw provided with self-locking rolled thread, wherein, in a plurality of places along its extent, the thread is deformed in relation to the normal thread cross section in that the thread outside diameter is reduced by radial compression of limited thread portions,... | 03/08/2005 |
| 6796761 | Bolt and nut A bolt is provided with a head part and a shank part. The shank part includes a first constant diameter cylindrical part, a transition part, a cylindrical connection part, and a second constant diameter cylindrical part concentrically extending from the first consta... | 09/28/2004 |
| 6685411 | Bolt The object of the present invention is to dissolve effectively the problems of the encroaching, the seizure, and the racing. To attain said object, a bolt having a threaded shank portion wherein a notch slanting toward the end of said threaded shank portion at... | 02/03/2004 |
| 6565302 | Thread forming screw A thread forming screws including opposite flanks connecting the screw crest region with the screw root region and tapering outwardly toward the root region, with each flank being formed of outer and inner flank sections tapering toward the root sections ... | 05/20/2003 |
| 6454506 | Anchor bolt with an outer thread having thread turns with different cross-sectional shape An anchor bolt having a substantially cylindrical stem (2), and at least one thread provided on the stem (2) and extending from a free front end of the stem at least over a portion of a longitudinal extent of the stem (2), the thread (6) having a pluralit... | 09/24/2002 |
| 6322307 | Fixing anchor A threaded fastener (1) is disclosed for anchoring into a substrate comprising a core portion (2) having at least one helical continuous thread provided along a substantial portion of the length of the core, in which the helical thread has a substantially... | 11/27/2001 |
| 6296432 | Bolt with extension to prevent thread misalignment A bolt is provided in the present invention. When said bolt is screwed in a nut, said bolt is guided by engaging the spiral guide groove of said guide boss with the thread of the nut to prevent the encroaching, the seizure, or the racing between the bolt ... | 10/02/2001 |
| 6290445 | Non-removable structural threaded fastener with threads of lesser outer diameter than the shank and method of forming same Apparatus and method for forming a pin and nut fastener assembly for temporarily or permanently securing two panels having conventional drilled generally aligned holes into which the assembly is inserted. Weight of the pin and nut is reduced while retaini... | 09/18/2001 |
| 6162001 | Anti-cross threading fastener A self-aligning, anti-cross threading fastener having first and/or second members with lead threads having a curved surface feature from the minor diameter to the major diameter which allows the surface of the lead threads to cam over the mating threads o... | 12/19/2000 |
| 6155761 | Short point anti-cross-threading design The present invention provides a novel fastener member, stud, or other threaded member, for engagement with a female member, and the method of assembly thereof. The fastener member has a novel point which facilitates engagement of the fastener member in t... | 12/05/2000 |
| 5997231 | Anti-cross threading fastener A self-aligning, anti-cross threading fastener having first and/or second members with lead threads having a curved surface feature from the minor diameter to the major diameter which allows the surface of the lead threads to cam over the mating threads o... | 12/07/1999 |
| 5964768 | Tapered bone screw with continuously varying pitch A bone screw having a continuously varying pitch includes a tapered root portion having a relatively small diameter on a leading end of the screw and a larger trailing diameter. The pitch of the screw decreases between the leading and trailing ends thus c... | 10/12/1999 |
| 5865584 | Plywood fastener for affixing plywood to light gauge sheet metal A fastener and method for securing plywood to sheet metal comprises a head, and a shank with three distinct segments. The first segment is a threaded tip segment with a pierce point tip; the second segment is unthreaded; the third segment is threaded and ... | 02/02/1999 |
| 5836731 | Anti-cross threading fastener A self-aligning, anti-cross threading fastener having first and/or second members with lead threads having a curved surface feature from the minor diameter to the major diameter which allows the surface of the lead threads to cam over the mating threads o... | 11/17/1998 |
| 5730566 | Anti-cross threading fastener A self-aligning, anti-cross threading fastener having a first member with lead threads having a curved surface feature from the minor diameter to the major diameter which allows the surface of the lead threads to cam over the mating threads of a second me... | 03/24/1998 |
| 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 |
| 5580199 | Fastening screw A fastening screw is provided with a locking function to prevent loosening thereof after being tightened. In one aspect of the invention, the fastening screw has a head having a bearing face; a plurality of convex portions and concave portions formed on t... | 12/03/1996 |
| 5340254 | Thread forming screw for forming an internal thread in a low ductility material A thread forming screw for cold forming, using primarily compressive forces, internal threads in a workpiece comprised of a low ductility material, such as magnesium and the like, comprises a shank having an entering end and a head end. External threads a... | 08/23/1994 |
| 5060740 | Screw thread coupling A thread coupling comprises two interconnected screw threads. Each of the screw threads has a root portion shaped as a portion of an ellipse. With respect to one of the threads having such a shape, the major axis of the ellipse is longer than that of the ... | 10/29/1991 |
| 5052871 | Connected screw threads A modified "Acme" type of male and female thread combination has a single-start male thread (10) of machined steel and a single-start female thread (12) of cast nodular graphite iron. The crown (20) of the female thread (12) is machined but the flanks (22... | 10/01/1991 |
| 4958973 | Internal-pressure-bearing female screw An internal-pressure-bearing female screw adapted to be applied with a varying composite load due to variation of an internal pressure, in which the thread contact heights of the female screw are formed so as to be successively lowered along the direction... | 09/25/1990 |
| 4861210 | Threaded element forming for example a screw, and assembly of pieces obtained with the aid of this element The present invention relates to an improved threaded element forming for example a screw, which comprises a thread (F) whose bottom (3) comprises two arcs of a circle (4) with equal radii (r1) which are connected tangentially with the sides (2... | 08/29/1989 |
| 4815360 | Rod-piston connection A rod-piston connection uses a split ring, having two or more segments, provided with a plurality of shallow internal grooves which are adapted to mate with a corresponding plurality of shallow grooves on the piston rod, the outer periphery of the split r... | 03/28/1989 |
| 4799844 | Elliptical thread design A screw structure (10) is provided for male and female threads (14) having at least one thread (14) extending helically along a cylindrical support member (12) in spaced thread turns. A root portion (22) extends between adjacent thread (14) turns and has ... | 01/24/1989 |
| 4610064 | Device for spreading flanges A device for spreading two flanges (1, 2) mounted in opposite position in a pipe system (3), which device mainly comprises a conical screw element (7) to be inserted into a continuous hole of a flange, said element having an axial opening, in which fits a... | 09/09/1986 |
| 4600225 | Tubular connection having a parallel chevron thread A thread form is shown for a tubular connection of the type having a pin member adapted to be made up with a box member to form a pipe joint. The pin member has pin threads with thread crests and thread roots which are adapted to be made up with a mating ... | 07/15/1986 |
| 4600224 | Tubular connection having a chevron wedge thread A thread form for a tubular connection of the type having a pin member adapted to be made up with a box member to form a pipe joint is shown. The pin member has pin threads with thread crests and thread roots which are adapted to be made up with a mating ... | 07/15/1986 |
| 4549754 | Tool joint A tool joint in which different tapers on the threads result in an artificial change in pitch and a radial interference and an asymmetric root cut on a larger radius than conventional API threads together with the effect of the tapered thread engagement r... | 10/29/1985 |
| 4527932 | Self-tapping screw For the purpose of assuring, during insertion in plastic, a highly stressable connection between screw and plastic with relatively small driving torques, a self-tapping screw is provided with a symmetrical thread profile whose thread angle (8) changes ste... | 07/09/1985 |
| 4408721 | Fitting to combine air and pressurized water A hydro-air jet assembly wherein a ball-shaped element has a first passageway therethrough communicating with an air supply and a second passage therethrough communicating with a water supply which is rotatably mounted in a housing and has a venturi nozzl... | 10/11/1983 |
| 4334815 | Fastener with a modified thread form A fastener with a modified thread form discourages a nut from becoming irremovably frozen on the shank of a bolt. A first normal thread extends from a base reference surface to a height on the fastener shank to permit full thread engagement by a nut. Axia... | 06/15/1982 |
| 4324036 | "Method of making orthodontic screw-type device" An orthodontic screw-type biassing device comprises: a first member having an internally threaded bore, the threaded bore comprising first and second threaded portions adjacent each other in the axial direction of the bore, the first and second threaded p... | 04/13/1982 |
