Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7735230 | Head-mounted navigation system A head-mounted navigation system may include an image sensor configured to sense one or more objects forward of a person and to generate image information representative of the one or more objects. A bearing sensor may be included and configured to detect bearing an... | 06/15/2010 |
| 7434342 | Brochure display device with direction indicator Promotional material display devices are provided. The display devices have a unique configuration that improves visual display and organization of promotional material including flyers and business cards. The display devices uniquely integrate a direction indicator... | 10/14/2008 |
| 7414921 | Portable electronic device with radiofrequency signal receiver and method for determining the position of the same The portable electronic device, preferably a wristwatch, includes a radiofrequency signal receiver for receiving, in particular, GPS signals via an antenna, a magnetic compass, a microprocessor data processing unit for processing data provided by the receiver and th... | 08/19/2008 |
| 7363719 | Pocket level A pocket level having a detachable line level whose bubble vial doubles as the pocket level's horizontal bubble vial, and an angle finder for enabling the determination of the angle of an inclined surface which includes a bubble vial housed in a wheel rim directly r... | 04/29/2008 |
| 7363722 | Apparatus for the temporary support of dimensional lumber used as a ledger Disclosed is an a mountable leveling support clamp comprising a mounting plate, a support arm having a horizontal and vertical portion incorporating a leveling indicator and threaded throughbore with an adjusting screw having a locking plate on one end and a handle ... | 04/29/2008 |
| 7343692 | Wiring device/wallplate installation tool Disclosed is an electrical device installation tool configured to aid in spacing, aligning, leveling, and securing, singly or in series electrical device in their boxes before installation on wall plates. The tool comprises a lower overlay with width, length and hav... | 03/18/2008 |
| 7331115 | Vehicle compass compensation A compass compensation system is provided for automatically and continuously calibrating an electronic compass for a vehicle, without requiring an initial manual calibration or preset of the vehicle magnetic signature. The system initially adjusts a two axis sensor ... | 02/19/2008 |
| 7302763 | Adjustable jig for use when installing bargeboards An adjustable jig includes rigidly formed arms that have rectilinear shapes provided with opposite edges, an elongated central opening formed therein and opposed ends abutted with adjacent arm ends. Fasteners are interfitted within the arm openings such that the arm... | 12/04/2007 |
| 7278218 | Laser line generating device with swivel base A base for a light generating device or a leveling device, having a first surface that includes a connection structure to receive and mount either a light generating device or a leveling device thereto, and a second surface including a nonmechanical attachment struc... | 10/09/2007 |
| 7278221 | Angle measurement tool An angle measurement tool having two legs held together by a removable adjustment member in which the legs are joined together about a common axis so that one of the legs rotates with respect to the other to form a desired angle the value of which is read using inde... | 10/09/2007 |
| 7243431 | Trailer hitch alignment device The invention is a trailer hitch alignment device that synergistically combines a laser level with an alignment mounting bracket, where the bracket, using a fastening means, provides a base on a vehicle for affixing the laser level to a vehicle. The laser level prov... | 07/17/2007 |
| 7175104 | Backpack with sprayer An apparatus for spraying chemicals in a forestry environment includes a back pack supported reservoir for containing such chemicals and a variable speed pump for urging the chemicals from the reservoir through a rearwardly oriented spraying unit. Positional and del... | 02/13/2007 |
| 7165339 | Measuring apparatus with tape measure and pendulum for plumbing A measuring apparatus comprises a handle 22 having a tape-holder 26′ and pendulum 24 attached thereto such that a measuring tape 30 can extend to a variable extent sideways out of the tape-holder with the pendulum hanging vertically dow... | 01/23/2007 |
| 7156338 | Blind cord retractor A cord retractor device provides multiple retracting mechanisms for independently retracting cords in each of the retracting mechanisms while operating the mechanisms in unison. The retracting mechanisms may be ganged together to form a multiple cord retraction mech... | 01/02/2007 |
| 7113451 | Electronic watch having a compass function The multi-function watch (1) includes a magnetic sensor assembly associated with its electronic circuits. The hands (7 to 9) of its display are activated by electric motors to indicate the time in a time mode and directions in a compass mode. In... | 09/26/2006 |
| 7013570 | Stud finder A stud finder for a light generating device, having a surface and a connection structure on the surface to removably mount either a light generating device or a leveling device thereto. ... | 03/21/2006 |
| 6971181 | Digital display compass for mounting on vehicle rear view mirror A digital display compass for mounting on vehicle rear view mirrors, including a direction sensor module generating signals corresponding to a direction that it is facing attached to the inside of the vehicle windshield, an electronic housing attached to the back si... | 12/06/2005 |
| 6968627 | Slope determination system A hand-held system for determining the slope of an element having an irregular surface, such as a shingled roof, or along a surface that is partially obscured by adjacent elements. The system comprises an inclinometer having a double indicator to provide two simulta... | 11/29/2005 |
| 6969057 | Method and apparatus for adjusting and positioning air caps A device and a method are provided for positioning an air cap of a pneumatically aided atomizer. The air cap has air horns extending from its face to provide flows of air to aid in atomizing and shaping the atomized particle stream. The method and apparatus contempl... | 11/29/2005 |
| 6951059 | Compass-based indicator with magnetic shielding The invention is directed toward a magnetic shield included in a compass-based indicator tool. The indicator tool utilizes a compass to indicate a device setting of an implantable medical device. The implantable medical device may include a target that creates an in... | 10/04/2005 |
| 6950685 | Electronic instrument intended to be worn on the wrist and including, in particular, an antenna for receiving and/or transmitting radio-frequency signals There is disclosed an electronic instrument intended to be worn on a user's wrist, such as a wristwatch (1), including a case (2) and a wristband (2a) secured to the case. The case encloses an electronic module (6), a display devic... | 09/27/2005 |
| 6906673 | Methods for aligning an antenna with a satellite Methods for aligning a satellite reflector with an antenna. One method includes the use of an antenna-alignment device to orient the centerline of an antenna in a desired azimuth, elevation and skew orientation. Another method includes the use of an antenna alignmen... | 06/14/2005 |
| 6886287 | Scope adjustment method and apparatus A rifle scope system allows adjustment of the scope while a shooter maintains the shooting posture and the scope sight picture. The scope system comprises an adjustment system comprising an electromechanical mechanism that responds to a signal from a remote controll... | 05/03/2005 |
| 6883241 | Compass-based indicator with magnetic shielding The invention is directed toward a magnetic shield included in a compass-based indicator tool. The indicator tool utilizes a compass to indicate a device setting of an implantable medical device. The implantable medical device may include a target that creates an in... | 04/26/2005 |
| 6647633 | Low profile compass with removable protective cover and magnetic bull's eye alignment system A low profile compass of the type including a transparent base member and fluid-filled vial contains a directional indicator in the vial in the form of a circle which is alignable with another circle imprinted on the vial. A hinged cover assembly can be d... | 11/18/2003 |
| 6599045 | Height measuring level pen/pencil A level pen/pencil or other writing instrument is equipped with an end-mounted level vial which mates with the pen/pencil barrel. The housing of the level is entirely clear allowing for the bubble of the level to be visible from all sides of the pen/penci... | 07/29/2003 |
| 6553677 | Combination square A combination square including a body including two opposing members, each having a plurality of straightedged surfaces, and a clamping element adapted to clamp the opposing members together, the opposing members defining a recess therebetween for receivi... | 04/29/2003 |
| 6546638 | Self-illuminated attitude indicator and method for self-rescue from avalanche A self-illuminating attitude indicator for use by persons who have been buried in snow or the earth. The attitude indicator has a container partially filled with liquid and a manually operated light to illuminate the container. The liquid may be removed f... | 04/15/2003 |
| 6536123 | Three-axis magnetic sensor, an omnidirectional magnetic sensor and an azimuth measuring method using the same A hybrid three-axis magnetic sensor for calculating the accurate direction of the earth magnetism. The hybrid three-axis magnetic sensor includes: a flux gate type magnetic sensor which is so formed that a base serves as a main member and detects two axis... | 03/25/2003 |
| 6256901 | Measuring tape A measuring tape comprises a housing in which a pivot is disposed for mounting a reel. A tape blade is releasably wound on the reel such that the tape blade can be pulled out of an opening of the housing. The bottom of the housing is provided with an acti... | 07/10/2001 |
| 6240650 | Wallpaper level edge tool A combination leveling and edge trimming tool for use during the application of a wallpaper material to a wall surface. The tool includes a substantially thin and elongate planar shaped body having a first face and a second face as well as a first end and... | 06/05/2001 |
| 6205670 | Bore centering device A bore centering apparatus includes an elongated level having a laser beam generator at one end insertably received into the center of a centering cone placed within a hole in a wall. Adjustment of the level is made by turnbuckles which adjustably connect... | 03/27/2001 |
| 6185157 | Timepiece including a GPS receiver, arranged in particular, for indicating the direction of a "target" location A timepiece (7) including hands (4, 5), direction determining means (10, 11, 14, 12) including data input means (14) arranged for inputting the geographical coordinates of a "target" location in data processing means (12). This timepiece is characterized ... | 02/06/2001 |
| 6167630 | Aligned laser system having a combined level and square device A combined laser beam level and square apparatus includes a level having slots or openings along a common side so that the slots or openings may receive a rule or square device that is pivotally mounted thereon so as to be selectively placed in coextensiv... | 01/02/2001 |
| 6141880 | Tool for layout of rapid development antenna array A tool for laying out a pattern of a measured size and orienting the pattern with respect to an exterior point of reference is disclosed. A cord having a plurality of anchoring points spaced along its length is arrayed to form the pattern. A direction fin... | 11/07/2000 |
| 5977922 | Satellite antenna alignment device A satellite antenna alignment device is described for use with a satellite antenna to enable the satellite antenna to be aligned with respect to a particular satellite. The alignment device is operatively secured to the support arm of the satellite antenn... | 11/02/1999 |
| 5894674 | Method and apparatus for determining direction A map is provided for indicating the direction of a fixed point (S), such as a sub-satellite point, from any point (P) within a specified area which is a substantial fraction of the earth's surface. The map projection is such that the actual direction to ... | 04/20/1999 |
| 5820476 | Golf putter leveling system A golf putter leveling system including a shoe level adapted for securement to a golf shoe. A putter level is provided that is adapted for securement to a shaft of a golf putter. The putter level includes a base portion having a lower arcuate recess and a... | 10/13/1998 |
| 5813125 | Self holding leveling square A hands free square and level which includes a self holding square that has central channels formed by opposing inner and outer walls. The central channels include mounting holes in its outer wall to allow it to be mounted on a work piece via screws. An i... | 09/29/1998 |
| 5752322 | Gimballed ouroboros compass device with digital logic A gimballed compass apparatus with digital logic is disclosed which provides directional and attitudinal data. The apparatus comprises a rotatably mounted slotted disk wherein the slot is continuously varying in width around the circumference of the disk.... | 05/19/1998 |
