Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 4708553 | Large secondary head rivet A blind rivet having an easily settable secondary head with the rivet body having a plurality of longitudinally extending circumferentially spaced weakened areas terminating in spaced relation from the rivet flange and the open end of the rivet so that up... | 11/24/1987 |
| 4696423 | High capacity shear fastener A hollow sheet metal steel fastener for joining wood and/or wood product assemblies subjected to high shear and bending stress loadings. The fastener comprises an elongated, equilateral triangular tubular shaft with continuous stiffening ribs along the ce... | 09/29/1987 |
| 4690598 | Expansion dowel An expansion dowel is made up of an expansion sleeve and an expansion body with a radially outer conically shaped surface. To expand the sleeve, the expansion body is pulled into the leading end of the sleeve. The leading end of the sleeve is connected to... | 09/01/1987 |
| 4688977 | Stud anchor An anchor having a shank, a reduced neck portion on the inner end and a tapering portion, and engagement means on the outer end and having a one-piece wedging collar arranged around the reduced neck portion, and having an overlapping portion extending par... | 08/25/1987 |
| 4673321 | Expansion dowel An expansion dowel includes an axially extending expansion sleeve and an expansion member rolled from a section of sheet metal. The sleeve has a leading end and a trailing end and the inside surface of the sleeve is threaded for an axially extending secti... | 06/16/1987 |
| 4669935 | Expansion dowel assembly An expansion dowel assembly is made up of an axially elongated generally cylindrically shaped dowel body and at least one wedge-shaped expansion member formed monolithically with the dowel body. The dowel body has a first or leading end which is inserted ... | 06/02/1987 |
| 4666354 | Moulded fixing devices The disclosure concerns a fixing device for securing fasteners such as bolts into concrete or other similar material. The device comprises a sleeve member (2, 4) having a block portion (6) in which a nut (14) is set. The block portion (6) has a frusto-con... | 05/19/1987 |
| 4659270 | Expansion dowel formed of an expansion sleeve and a wedge-shaped expansion element A metal expansion dowel is made up of an axially elongated cylindrically shaped expansion sleeve and an expansion element formed monolithically with the sleeve. The expansion sleeve has a leading end and a trailing end. The sleeve has an opening with the ... | 04/21/1987 |
| 4657456 | Blind screw anchor A blind screw anchor, made of one piece of metal, has a shank, constituted by sleeve portions connected together by uniformly spaced links. A head flange is integrally connected to an adjacent sleeve portion at one end of the shank by a bridge piece bent ... | 04/14/1987 |
| 4650373 | Rock bolt construction and installation An elongate hollow rock structure and installation wherein the elongated shank of the bolt is hollow and has a series of outwardly bowed side or side portions that are capable of resilient deflection. Fin means are provided in sides or side portion, with ... | 03/17/1987 |
| 4642008 | Expansion dowel An expansion dowel includes an axially elongated sleeve-shaped dowel body slit in the axial direction from the leading end. A spiral-shaped expansion body is located in the dowel body in the axially extending region of the slit. By axially displacing the ... | 02/10/1987 |
| 4634326 | Expansion anchor An expansion anchor for anchoring in drill-holes, preferably in drill-holes having undercuts widening inwardly, comprises an expansion member having an expander cone supported at the bottom of the drill-hole, and an expansible sleeve driven onto the expan... | 01/06/1987 |
| 4634317 | Method of rock bolting and tube-formed expansion bolt A tube-formed rockbolt is partly circular in its cross-section and opposite its circular portion (12) it has a deep depression (16-18). Its ends are sealed and its outer end has a hole (44, 45) or a fitting (24) through which the bolt can be supplied with... | 01/06/1987 |
| 4610589 | Screw anchoring bushing for use in semihard materials A screw anchoring plug or bushing for use in predrilled mounting holes in elements of semihard materials such as chipboard, consisting of a sleeve made as a rolled up piece of metal sheet material provided with a number of slightly projecting barb-like to... | 09/09/1986 |
| 4609316 | Device for fastening an object against a wall or the like A device for fastening an object against a wall as a plug-in mounting is described, which is provided with an externally threaded bolt, onto one end of which a nut can be threaded and on the other end of which, which is at least partially conical and the ... | 09/02/1986 |
| 4595325 | Self-locking prevailing torque fastener Disclosed are two embodiments (40, 50) of a self-locking prevailing torque fastener featuring a common base portion (2) having an aperture (4) therethrough for receiving a threaded member that is at least partially surrounded by means such as a warped hel... | 06/17/1986 |
| 4548534 | Screw fixing element A horseshoe shaped body formed of planar sheet metal is formed with a pair of legs joined at one end by an arcuate web. A portion of the web is bent perpendicularly to the legs, and each of said legs has a flange extending outwardly within the plane of th... | 10/22/1985 |
| 4521148 | Hinged mirror image plastic fastener for quick assembly to threaded male members A plastic fastener for panels comprises in combination a main body of the shape of an angular pillar provided at the upper end thereof with a flange, elastic tongues formed one each on one of the two pairs of opposed side walls of the main body and extend... | 06/04/1985 |
| 4517711 | Plate clamping device Disclosed is a device for clamping two plates with their surfaces laid on each other, comprising a hollow head, a hollow trunk provided on each side with a side catch and provided with a tongue between its opposite sides, a leg extension hinged to the tru... | 05/21/1985 |
| 4502818 | Roof support pin A roof support pin for insertion into a roof bore having an opening comprising an elongate tube for insertion into the bore, the tube being compressed prior to insertion of the tube into the bore opening so that the tube expands to frictionally engage the... | 03/05/1985 |
| 4500238 | Hollow wall anchor A fastener useful for securing articles on a hollow wall, made of a thin sheet of metal, shaped as to provide two spreadable pointed thin blades for easy insertion into a wall where after the blades are spread apart by the insertion of a screw to form an ... | 02/19/1985 |
| 4484848 | Expansion dowel assembly An expansion dowel assembly includes an expanding sleeve and a spacer sleeve with a deformable metal sleeve spacer member extending between them. At the outset, the spacer member has a non-circular cross section, however, during the expansion operation, t... | 11/27/1984 |
| 4475856 | Expansion screw with an expansion sleeve having an outer cylindrical surface and regions of greater and lesser wall thickness An expansion screw for being secured in a cavity is threaded at the outer end of its screw portion for co-action with a nut (2) and is provided with an expandable sleeve (10) about its opposite end. The sleeve has an inner profile coacting with an outer p... | 10/09/1984 |
| 4430033 | Sheet metal insert for foam plastic A one-piece sheet metal insert for use in anchorage and fastening applications. The insert is designed to provide sufficient resistance to axial pull-out loading when utilized in relatively soft material workpieces such as structural foam plastic. The ins... | 02/07/1984 |
| 4408372 | Coupler A coupler for joining two objects comprises an insertion member attached fast to one of the objects and a reception member attached fast to the other object and used for admitting the insertion member into fast engagement therewith. The insertion member i... | 10/11/1983 |
| 4370082 | Fastening element A fastening element to be used with a fastener, such as a screw, comprising a longitudinally slotted conical sleeve of an at least slightly resilient material, said sleeve being sized to be held by friction fit in a hole, wherein the screw is to be insert... | 01/25/1983 |
| 4354322 | Hand gun with improved barrel mounting pin The frame of a hand pistol has in its forward end a pair of spaced furcations between which the lug on a removable gun barrel is pivotally mounted by means of an adjustable mounting pin, which permits the barrel to be pivoted between an open or loading po... | 10/19/1982 |
| 4354782 | Drive-in expansion fastener An expansion fastener, especially for walls formed of plaster or drywall, in which a metallic sleeve-like member having spreadable sides is provided with a point at one end and an outwardly extending flange at the other. The fastener can be driven into th... | 10/19/1982 |
| 4316677 | Tubular shank device A device that has a tubular shank can be employed either for fastening or for stable mounting in unconsolidated underground strata. This shank has an oblate cross-section. For applications in which the device is driven into underground strata, the shank h... | 02/23/1982 |
| 4290178 | Assembly apparatus for electrical connectors A machine to assemble electrical contact retention clips in an insulator including an indexing turret having jaws, a jaw operator, a clip carrying strip feed, a clip loading and clip shear-from-strip mechanism, an X-Y table driven by a conventional microc... | 09/22/1981 |
| 4289062 | Expansion dowel An expansion dowel for insertion through an opening in a structural member into a hollow space within the structural member, is formed of a shaft portion, a pair of expansion arms connected to the shaft portion and a pair of webs, each joined to one of th... | 09/15/1981 |
| 4284379 | Earth structure stabilizer According to a preferred embodiment of the invention the stabilizer comprises an elongate, generally annular element for insertion into an undersized bore in a roof or wall of a mine shaft, or tunnel, or the like, for frictionally engaging the bore surfac... | 08/18/1981 |
| 4260122 | Clamping wall plug for elongated bodies A double-leg plug has its shanks connected together at one end by an arcuate hinge ligature which is of circular configuration when the shanks of the plug are brought together and inserted in a hole in a wall. The circular portion forms an eye in which a ... | 04/07/1981 |
| 4249835 | Mine roof support plate A support plate for a mine roof including a substantially flat body engageable with the mine roof, the body having an enlarged central opening through which are passed one end of a roof bolt on which is threaded an expansion shell which is inserted into a... | 02/10/1981 |
| 4203193 | Method of attaching a rail and a tie plate to a cross tie A spike retainer which may be forcibly driven through an aperture in a tie plate into a wood cross tie includes an upper lip for engaging a flanged base of a rail supported by the tie plate. A movable wedge attached to the spike retainer is forced between... | 05/20/1980 |
| 4195952 | Means for anchoring to rock An improved device for anchoring mine roofs utilizing bolts prestressed to place them under high tension loading is disclosed. The bolt is secured by an anchor consisting of an expandable shell and an expander nut with the nut being movable lengthwise of ... | 04/01/1980 |
| 4002100 | Expansion anchor sleeve and method of making the same A metal expansion anchor sleeve is made by forming an elongated flat sheet metal blank so that it has a longitudinal slot extending inwardly from one of its ends and dividing it into two sections which are connected at the other end and which are each pro... | 01/11/1977 |
| 3999356 | Panel edge fastener clip A joint assembly of a television cabinet or similar structure is formed by inserting a panel member in a groove formed in a receiving member. A fastener clip, inserted in the groove, engages both the panel member and the receiving member and holds them to... | 12/28/1976 |
| 3969976 | Expansion unit An improved expansion unit made from heavy sheet metal for use in supporting a ceiling or roof, particularly a mine roof, comprises a wedge and a cylindrical expansion shell having a taper provided by a plurality of lateral serrations. The serrations are ... | 07/20/1976 |
| 3959853 | Fastening peg and method of making same This fastening device comprises a central internal plug formed with retaining notches and engageable in an external peg consisting of separate legs formed with internal and external notches and connected to the inner end of said plug by means of flexible ... | 06/01/1976 |
