...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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.
| Application No. | Application Title | Issue Date |
| 20120068469 | WIND TURBINE ROTOR BLADE A wind turbine blade extending in a longitudinal direction from a root end to a tip end and defining an aerodynamic airfoil cross-section between a leading edge and a trailing edge in a chordwise direction transverse to the longitudinal direction, the aerodynamic airfoi... | 03/22/2012 |
| 20120039711 | FLUID PUMP The invention relates to a fluid pump, in particular liquid pump, with a rotor, with a rotor shaft (11) and with at least one rotor blade for delivering the fluid, wherein the rotor with regard to its diameter may be changed between a first, compressed condition,... | 02/16/2012 |
| 20110206513 | Drive Mechanisms For Variable Diameter Rotor Systems A rotor hub assembly includes a rotor hub for supporting a telescoping rotor blade having an outboard section; and a drive mechanism associated with the telescoping rotor blade, the drive mechanism including: a motor; a spool driven by the motor; and a strap wound on th... | 08/25/2011 |
| 20100202882 | BLADE ASSEMBLY FOR A CEILING FAN A blade assembly for a ceiling fan includes a mounting arm, a bearing, a cover, a spiral spring, a blade, and three screws. The mounting arm has a plate. The plate has a boss. The boss has a split. The bearing is sleeved on the boss. The cover has a stub. The stub has a... | 08/12/2010 |
| 20050042095 | Self regulating rotor A machine that is a self regulating rotor with a set of cups or vanes that are pivotally attached about a central axis such that they form a closed three dimensional shape when closed, and when rotated into an open orientation form an s-shaped rotor, when viewed as a ho... | 02/24/2005 |