Bizarre Patents
A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7284933 | Square embossed roof and rib plate Disclosed is a mine roof and rib support system generally including a square bearing plate. A through hole is positioned near a center portion of the square bearing plate. A peripheral section at least partially circumscribes the bearing plate. In between the throug... | 10/23/2007 |
| 7192232 | Self-locking fastening device A self-locking fastening device which includes a screw or nut for fastening at least one first part to a second part and a shim (10) which is provided with a central borehole (11). The two surfaces of the shim (10) include rib profiles (12,14... | 03/20/2007 |
| 7171876 | Wrench combination A wrench combination includes a handle with an ear defining an aperture and an annular groove around the aperture. A wrench includes an annular head, an ear extending from the annular head and an annular gear put in the annular head. A washer is put in the annular g... | 02/06/2007 |
| 6957931 | Roof bolt bearing plate and method for an underground mine Roof bolt bearing plate and method are disclosed for use in underground mining operations. A dome-shaped roof bolt bearing plate and method support the roof in a mine. The bearing plate is round or elliptical different from conventional commercial roof support devic... | 10/25/2005 |
| 6665991 | Seam plate for retaining roof decking membrane A stress plate or seam plate for use in connection with securing membrane sheets to underlying roofing decking substructure comprises a circular disk having a central aperture for receiving a screw fastener. A plurality of concentric ribs are defined betw... | 12/23/2003 |
| 6497543 | Aerodynamic resistance weld pin A resistance weld pin for connecting batts of insulation to the interior of ducts is disclosed, the pin having superior aerodynamic properties which minimize turbulence in the duct flow stream and reduce the tendency of increments of the insulation surrou... | 12/24/2002 |
| 6361257 | Parallel wave washer A parallel wave washer having a body member with an aperture disposed therethrough, a first groove and a first ridge are disposed across a first end of the body member, the first groove is spaced apart from the first ridge and is aligned parallel thereto,... | 03/26/2002 |
| 6250034 | Membrane plate An improved membrane plate for attaching a membrane to a roof is disclosed. The improved membrane plate includes a plate body portion having a bottom surface for disposing the bottom surface against the membrane and an opening to permit a fastening device... | 06/26/2001 |
| 6224288 | Corrugated slider washer bearing A slider washer bearing in a bolted interface assembly allows relative differential thermal expansion and contraction motion between a component plate fastened to a base plate by a bolt, without inducing large strains and stresses upon the plates or the b... | 05/01/2001 |
| 6146056 | Channel and bearing plate assembly A double ribbed bearing plate for use with a channel member in supporting a mine roof. The bearing plate includes a base with ribs in the bearing plate define recesses which receive flanges on the channel. The longitudinal edges of the bearing plate may e... | 11/14/2000 |
| 5984602 | Reversible threaded fastener system A reversible threaded fastener system which provides holding of a nut in a f ully conjoined state with respect to a bolt, yet the interrelationship therebetween is fully reversible and is accomplished without friction and without inelastic deformation. In... | 11/16/1999 |
| 5951225 | Large-area washer In the large-area washer with an aperture for fastener means, there are engagement components on the surface in the fastening direction of the washer. The engagement components engage a cover strip that is to be fastened. The washer also has stiffeners in... | 09/14/1999 |
| 5934855 | Large-area washer A large-surface plain washer (1) has an opening (5) for inserting a fastener. Engagement elements (1) that increase the engagement with a plate and/r web to be fastened are provided at the surface of the washer (1) that faces in the fastening direction. I... | 08/10/1999 |
| 5803693 | Swiveling roofing washer A swiveling roofing washer for use with a roofing fastener has a plate. The plate defines a centrally positioned fastener opening. The plate further has a bottom surface for engagement to a roofing membrane, and an oppositely positioned top surface. The t... | 09/08/1998 |
| 5791828 | Plate for use in support of a mine roof A plate (1) for use in support of a mine roof comprising two interconnected parts (2, 3). The first part has a substantially frusto-conical projecting portion (6) which defines a first opening (7) and the second part (3) is fitted to the first part and ha... | 08/11/1998 |
| 5707191 | Stress plate with angled hole A stress plate for use with a threaded fastener for securing relatively soft insulation to a solid base, such as in a roofing environment, includes a generally planar main body, and a hole on the main body configured for receiving the fastener. The plate ... | 01/13/1998 |
| 5628587 | Bearer plate A bearer plate for use with rock bolts or friction rock stabilisers has a plate with an earth engaging surface and an aperture. A wall circumscribes the aperture and extends generally away from the plane of the plate. The wall includes a plurality of spac... | 05/13/1997 |
| 5509769 | Barbed light weight concrete fastener and plate A barbed light weight concrete fastener and plate comprises a fastener with a head and two bendable legs. Each leg has a barb and a bump protruding therefrom. The fastener is pushed through a base ply and into a roof deck of cementitious material. The leg... | 04/23/1996 |
| 5445477 | Bearing plate with a continuous elliptical embossment A bearing plate with side walls longer than end walls so that the bearing plate has a rectangular configuration and a continuous elliptical embossment extending along the side walls and the end walls of the plate. An aperture concentrically positioned at ... | 08/29/1995 |
| 5385433 | Bearing plate An elongated channel beam for supporting the surface of an underground rock formation includes a base portion with a bearing surface for contacting the rock strata and an opposite surface having a longitudinally extending central rib and flanged edges for... | 01/31/1995 |
| 5292209 | Bearing plate An elongated channel member for supporting the surface of an underground rock formation includes a base portion with a bearing surface for contacting the rock strata and an opposite surface having a longitudinally extending central rib and flanged edges f... | 03/08/1994 |
| 5125827 | Injection molding apparatus having an insulative and resilient spacer member An insulative and resilient spacer member to be mounted between a heated manifold and a cooled clamp plate in an injection molding system. The spacer member has a plurality of V-shaped concentric rings. It has a uniform cross section with a number of web ... | 06/30/1992 |
| 5102275 | Deck plate and assembly A planar stress plate-buttress thread fastener assembly in which the stress plate's annulus has teeth formed on the perimeter thereof and pointed in the direction of the installation rotation of the fastener. The teeth are deflected downward out of the pl... | 04/07/1992 |
| 4752178 | Waved retaining ring A circular waved retaining ring is formed from two turns of a flat elongate wire strip and which follow a continuous sinusoidal wave path that includes a series of waves equidistantly spaced about the ring wavepath, each wave having a shoulder portion whi... | 06/21/1988 |
| 4708559 | Reinforcing washer for a mine roof bolt assembly A reinforcing washer for use in a mine roof bolt assembly comprising a roof bolt having a shaft portion, an embossed bearing plate having a surface which substantially contacts the mine roof, an opposite surface and an aperture through which the roof bolt... | 11/24/1987 |
| 4641472 | Fastener for securing roofing material to cementitious roof decks having removable tab A fastener for securing built-up roofing membranes used to waterproof cementitious roof decks combines the conventional nail used for this purpose having a head and a shank portion designed to resist withdrawal of the fastener from the deck, with a non-in... | 02/10/1987 |
| 4641471 | Fastener for securing roofing material to cementitious roof decks A sheet metal nail of the type for securing built-up roofing membranes used to waterproof cementitious roof decks has a head and a hollow shank portion integral therewith and designed to resist withdrawal of the nail from the deck in a conventional manner... | 02/10/1987 |
| 4627207 | Fastener for securing roofing material to cementitious roof decks having removable tab A fastener for securing built-up roofing membranes used to waterproof cementitious roof decks combines the conventional nail used for this purpose having a head and a shank portion designed to resist withdrawal of the fastener from the deck, with a non-in... | 12/09/1986 |
| 4490082 | Fastener having an axially and radially undulating flange A screw adapted for use with thin sheet metal. The screw has a threaded shank and a head with an integral flange. The flange has both radial and axial undulations which increase the amount of torque required to strip the screw. The undulations are formed ... | 12/25/1984 |
| 4011785 | Nail and powered nailer A pallet size nail having a comparatively small gauge shank whose surface is pitted with contiguous minute pits bounded by small sharply shaped wall convexities as provided by grit blasting the surface with approximately 80 mesh grit of aluminum oxide, wh... | 03/15/1977 |
