Bizarre Patents
Process For Propelling Foodstuffs or the Like into a Crowd
A method of launching foodstuffs into a crowd for promotional and entertainment purposes.
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 |
| 7194814 | Self-balancing, no-spin magnet compass A self-balancing, no-spin magnetic compass. A described embodiment includes a compass card assembly, a retainer assembly, a pivot assembly, a gimbal assembly, a cup, and a dome. The compass card assembly includes an air chamber which provides buoyancy. The retainer ... | 03/27/2007 |
| 6962001 | Magnetic north detecting device and magnetic north detecting method The magnetic north detecting device comprises: a 3-dimensional geomagnetism sensor unit including three geomagnetism sensors for detecting respective components of a geomagnetism magnetic field intensity in respective directions of three coordinate axes perpendicula... | 11/08/2005 |
| 6708415 | Magnetic compass structure An Improvement to enhance the usability of magnetic compasses by eliminating acceleration and turning errors, especially in aviation applications, without compromising simplicity and reliability. The improvement includes the addition of a weightless mass to the bar ... | 03/23/2004 |
| 6701631 | Convertible directional azimuth and dip measuring modular compass and method A compass adapted to measure direction and dip values with or without the assistance of the earth's magnetic field. A laser pointer module and a magnetic needle module are interchangeably arranged in a body having an attached reference angle plate appropr... | 03/09/2004 |
| 6665944 | Magnetic marine compass A self-balancing marine compass. A described embodiment includes a pivot assembly, a buoyant-magnetic chamber assembly, a reading card assembly, and a dome. The pivot assembly includes fulcrums, each of which fit within fulcrum holders located on an inner... | 12/23/2003 |
| 6105265 | Tilt-compensating indicator device for a compass The invention concerns a tilt-compensating indicator device for a compass (100) comprising a magnetic field detection device (20) which is mounted on a conical bearing (7) and is accommodated in a housing (100') of the compass (100). The indicator device ... | 08/22/2000 |
| 6049989 | Three-dimensional homologous surveying method and the related instrument A three-dimensional homologous surveying instrument includes a base with an outer spherical shell mounted thereon for receiving therein a ring-shaped shell holder, an intermediate spherical shell and an inner spherical shell with respective zero reference... | 04/18/2000 |
| 4930224 | Magnetic compass An improved magnetic compass unit consists of a compass bowl, a card assembly pivotally supported on a pivot shaft within the bowl, the card assembly consisting of a compass card and a magnet, and at least one active indicator pin adapted for alignment wi... | 06/05/1990 |
| 4700490 | Compass A compass which is self-compensating for dip of its pointer arms irrespective of variances in the earth's magnetic forces at different geographical locations includes a magnet disposed beneath respective proximal portions of the pointer arms so that the p... | 10/20/1987 |
| 4110914 | Hand compasses A compass design particularly for wrist mounted and hand held compasses which includes a first exterior, fluid tight case having a pair of pivot members respectively on the upper and lower surfaces thereof for rotatably mounting a second interior case mem... | 09/05/1978 |
