Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7313871 | Archery sight An improved laser sight apparatus that is capable of identifying and impinging several different targets at varying ranges from the shooter. In the preferred embodiment, the laser sight according to the present invention includes three lasers, each of which is pre-c... | 01/01/2008 |
| 7278217 | Trigonometric teaching aid A trigonometric teaching aid for providing students with real life applications for the principles of trigonometry includes a transit assembly having a sight tube with cross hairs, a level and an upper protractor pivotally connected to an upper end of a vertical sca... | 10/09/2007 |
| 7254899 | Arch measuring device A measuring device for measuring the arc of an arched window comprising a base; measuring means selectively rotatable relative said base for measuring a distance between said base and said arch at a selected angle. ... | 08/14/2007 |
| 7228634 | Using viewing-angle-sensitive visual tags to determine angular orientation and/or location One embodiment of the present invention provides a system that uses a visual tag to determine an angle. During operation, the system observes the visual tag from an observation point, wherein the visual tag includes an angle-sensitive image which changes in appearan... | 06/12/2007 |
| 7222430 | Object locator sight An object locator sight aiding a first person to communicate the location of a distant object to a second person provides a laterally elongate base, carrying upstanding forward and spacedly adjacent rearward panels. The forward panel is perpendicular to the base and... | 05/29/2007 |
| 7200946 | Alignment apparatus An alignment apparatus includes a central leg element and one or more secondary support leg elements in operative communication with the central leg element for providing support thereto. A sighting device rotatably attached to the central leg element includes an op... | 04/10/2007 |
| 7181855 | Methods and devices for enhancing intensity of on-surface lines cast by laser line projectors or the like Given a situation where a projected laser line appears to have terminated or faded as it intersects with a work-surface (e.g., a wall), a fan-out redirecting means is used to capture and redirect energy radiating above and parallel to, or radiating away from the giv... | 02/27/2007 |
| 7181854 | Laser leveling device having a suction mounting arrangement A laser leveling device having a suction mounting arrangement includes a housing and a mounting seal extending from the lower portion of the housing. The mounting seal cooperates with an attachment surface to define a suction mounting area therebetween. The suction ... | 02/27/2007 |
| 7140117 | Dartboard positioning device and method A dartboard positioning device and method includes a housing that has a back wall, a front wall, a first side wall, a second side wall, a top wall and a bottom wall. The back wall is arcuate and abuttable against an edge of a dartboard. A center mark indicator is po... | 11/28/2006 |
| 7134212 | Laser level A laser level disposable on a reference surface includes a housing, a pendulum pivotably connected to the housing, a first laser diode disposed on the pendulum for emitting a first laser beam along a first path, a first lens disposed on the pendulum in the first pat... | 11/14/2006 |
| 7124513 | Three way laser indicator A laser indicator has a laser mechanism having three laser generators generating laser beams perpendicular to each other. Each of the three laser generators is electrically coupled to a separate laser control motor for independent control of the beam of the correspo... | 10/24/2006 |
| 7117608 | Spirit level A spirit level comprising a body having a level face for setting a surface, at least one bubble vial mounted in the body, the bubble vial having a longitudinal axis generally perpendicular to the level face, and an optical transfer element fixed to the body which tr... | 10/10/2006 |
| 7051445 | Apparatus generating a light illuminated line An improved apparatus generating light illuminated line provides a possibility to produce and propagate the light line along the reference surface under any desirable angle. The improved apparatus generating light illuminated line includes a circular scale means com... | 05/30/2006 |
| 7003890 | Wall reflectors for aligning laser beams and methods of using them Wall reflectors work in conjunction with devices that emit wall laser beams, for assisting the attachment on a wall of items such as pictures. The wall reflectors are constructed to be attached on the wall, and to provide surfaces for reflecting the laser light beam... | 02/28/2006 |
| 6948252 | Light projecting goniometer This device is a handheld, battery-operated instrument that utilizes light beams to project visible lines for increasing the accuracy in determining angles. A linear potentiometer is incorporated at the pivot point between the two diodes and measures a voltage chang... | 09/27/2005 |
| 6938350 | Apparatus for producing a reference plane The present invention provides an apparatus and method for projecting a reference plane. The invention features emitting a light beam, splitting the light bean into two or more resulting beams, and converting the resulting beams into respective projected lines. The ... | 09/06/2005 |
| 6931737 | Laser level device A laser level includes a laser light source adapted to emit a laser beam, a beam-splitting unit splitting the laser beam into a number of light beams along multi different directions and a beam-outgoing unit dispersing the number of light beams to form corresponding... | 08/23/2005 |
| 6891148 | Scaling device for photographic images A scaling device projects a known optical pattern into the field of view of a camera, which can be employed as a reference scale in a resulting photograph of a remote object, for example. The device comprises an optical beam projector that projects two or more space... | 05/10/2005 |
| 6877236 | Optical measuring device system and method The present invention relates to an optical measuring devices and method of using the device. The optical measuring device utilizes a plurality of lasers attached to a plurality of interconnected legs to optically determine CENTER, LEVEL, LENGTH, DISTANCE, and PLUMB... | 04/12/2005 |
| 6453568 | Laser protractor A laser protractor comprising two laser pointers fixed in a body to point exactly 90° apart in the same plane and a third laser pointer mounted on a movable arm rotatable about an axis perpendicular to the intersection of the first two laser pointers (as... | 09/24/2002 |
| 6449855 | Laser aligning and measuring device An aligning and measuring device having a framing square with inner and outer converging edges connected by opposing upper and lower surfaces having a certain dimension. One or more laser beam generators providing one or more laser beams along a line in a... | 09/17/2002 |
| 6279239 | Device and a method for sizing odd parts of drywall for placement on ceilings and walls An integral apparatus having laser sighting means embodied in a pocket sized device, for use in determining end points along ceilings and wall perimeter edges to more accurately size drywall pieces to be installed in generally non-rectangular perimeter se... | 08/28/2001 |
| 6177987 | Laser level A laser level includes a transparent container, a buoy with a built-in laser component, and a support frame. The center of gravity of the buoy is always at the center of the buoy. One end of the buoy emits horizontal laser beams, the other end thereof emi... | 01/23/2001 |
| 6065217 | Laser rotary double crossliner A laser crossline device suitable for construction includes at lease a first and a second laser beam produced by diode modules. The diode modules revolve around a horizontal axis so as to form a 360° laser scanning plane that is perpendicular to the hori... | 05/23/2000 |
| 5933393 | Laser beam projection survey apparatus with automatic grade correction unit A laser beam projection apparatus includes a light source, a vessel containing a transparent liquid which transmits a light beam from the light source and has a free liquid surface, a condensing optical member for condensing the light beam transmitted thr... | 08/03/1999 |
| 5864956 | Level line and limb line combination A combination of square alloy rulers with precisely machined planes, each ruler unit having two 1.5v batteries and two bubble levels to level in all directions. A line generator is mounted in front of a laser diode module. This basic laser line ruler unit... | 02/02/1999 |
| 5839199 | Laser gradient setting device A laser gradient setting device, having such arrangement that a reference laser beam with a gradient emitted and a reference laser beam in vertical direction is emitted, whereby the laser gradient setting device can be easily positioned by the reference l... | 11/24/1998 |
| 5606802 | Laser gradient setting device A laser gradient setting device, having such an arrangement that a reference laser beam with a gradient is emitted and a reference laser beam in vertical direction is emitted, whereby the laser gradient setting device can be easily positioned by the refer... | 03/04/1997 |
| 5257091 | Optical alignment system for aligning a multiple gap tape head assembly An optical alignment system for aligning a multiple gap tape head assembly of a tape drive, including a cartridge plate insertable in a tape drive and having a first surface mirror that is parallel to a reference plane for the drive when the plate is inse... | 10/26/1993 |
| 5218770 | Surveying machine for construction work In the surveying for construction work carried out prior to actual construction to set up new stations serving as references of the construction work, measurements to set up various angles are contemplated, but it will be readily understood, from the view... | 06/15/1993 |
| 5163230 | Chalk line apparatus A chalk line assembly includes a housing formed with a cavity therewith to receive powdered chalk, with a chalk line wound within the housing about a central spool. A crank handle is directed into the housing to effect winding and reeling of a chalk line ... | 11/17/1992 |
| 5118184 | Transit for establishing 90 degree angles A transit includes two identical transit elements oriented at 90° with respect to each other. Each transit element includes an objective end and a viewing end and be focused on a distant point. The transit is mounted on top of an intersection of two elem... | 06/02/1992 |
| 5007175 | System for materializing a point in space, applications thereof and a tooling assembly for said system A system is disclosed for materializing in space a point whose coordinates in a system of reference axes are known, comprising: an optical aiming apparatus, occupying a pre-determined position with respect to said system of axes and making it possible to deter... | 04/16/1991 |
| 4976039 | Navigation aid There is described a navigation aid for use in sailing vessels. The navigation aid comprising a casing having at least one side wall, the side wall having an aperture, and at least one end wall, the end wall also having an aperture. The casing encloses at... | 12/11/1990 |
| 4967479 | Position relocation device A relocation device has a housing, a first sight tube having a viewing opening through which a user can look to sight an object substantially along a first line of sight, a second sight tube having a viewing opening through which a user can look to sight ... | 11/06/1990 |
| 4908948 | Precision optical square instrument A precision optical square instrument for accurately determining lines and planes respectively perpendicular to reference lines and planes comprising, a substantially hollow housing containing first and second reflectors arranged at different vertical pos... | 03/20/1990 |
| 4907881 | Precision alignment device Apparatus for providing automatic alignment of beam devices having an associated structure for directing, collimating, focusing, reflecting, or otherwise modifying the main beam. A reference laser is attached to the structure enclosing the main beam produ... | 03/13/1990 |
| 4845856 | Method and apparatus for aligning equipment on board a carrier vehicle and particularly on board an aircraft A method for aligning pieces of equipment on board a vehicle, particularly on board an aircraft is disclosed. The method assumes the use of at least one computer on board the vehicle working in connection with the pieces of equipment. Under this method: a... | 07/11/1989 |
| 4537509 | Optical inspection and alignment verification system An optical inspection system includes a thin optical probe having spaced parallel viewing surfaces on opposite sides and image reflecting elements within for transmitting images from the viewing surfaces to viewing optics including optical paths aligned w... | 08/27/1985 |
| 4497117 | Slope compensating angle gauge The "Cruiser's Crutch" is a slope correcting basal area angle gauge to be used in variable plot sampling for determining basal area in square feet per acre. It incorporates the critical angle for the 10, 20, 30 and 40 basal area factors. This gauge enable... | 02/05/1985 |
