...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7410133 | Miniature trailing edge effector for aerodynamic control Improved miniature trailing edge effectors for aerodynamic control are provided. Three types of devices having aerodynamic housings integrated to the trailing edge of an aerodynamic shape are presented, which vary in details of how the control surface can move. A bu... | 08/12/2008 |
| 7367532 | High lift longitudinal axis control system A bipartite, full span airplane flap system having an inboard flap portion and an outboard flap portion, wherein the outboard flap portion includes an integrated aileron mounted on its substantially equivalent spanwise length. ... | 05/06/2008 |
| 7311288 | Aircraft wing structure and a method for decreasing flight speed of the aircraft The invention provides a wing structure for an aircraft, including a top skin and a bottom skin defining a primary wing surface, the surface having a width, a length, a leading edge and a trailing edge; a flap having a width smaller than the width of the wing surfac... | 12/25/2007 |
| 7198225 | Aircraft control system A solar rechargeable, long-duration, span-loaded flying wing, having no fuselage or rudder. Having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to... | 04/03/2007 |
| 7143983 | Passive jet spoiler for yaw control of an aircraft A wing for an aircraft has a passive jet spoiler for providing yaw control by increasing drag on the wing. The spoiler comprises an inlet located near the leading edge of a lower surface of the wing and at least one outlet formed on the lower surface or on an upper ... | 12/05/2006 |
| 7108230 | Aircraft with topside only spoilers An aircraft with swept back wings and spoilers inlaid into the top surface near the tips of the wings. The aircraft also includes an elevator formed in the center back portion of the aircraft, which is also aft of the spoilers. It is aft to allow an auxiliary contro... | 09/19/2006 |
| 7028954 | Microfabricated translational stages for control of aerodynamic loading Micro-electro-mechanical (MEM) translational tabs are introduced for enhancing and controlling aerodynamic loading of lifting surfaces. These microtabs are mounted at or near the trailing edge of lifting surfaces, deploy approximately normal to the surface, and have... | 04/18/2006 |
| 6931247 | Aircraft control method This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Traveling at relatively slow speeds, ... | 08/16/2005 |
| 6892982 | Aircraft with forward opening inlay spoilers for yaw control An aircraft comprises first and second wings positioned on opposite sides of a longitudinal axis, a first forward opening control surface attached to an upper surface of the first wing, and a second forward opening control surface attached to an upper surface of the... | 05/17/2005 |
| 6766981 | Control system for alleviating a gust load on an aircraft wing Disposed on each wing of an aircraft adjacent the wing tip is at least one deflector mechanism for twisting the wings as part of a control system for alleviating a gust load on the wing. The wing twisting is performed in conjunction with a vertical motion sensor, a ... | 07/27/2004 |
| 6095459 | Method and apparatus for countering asymmetrical aerodynamic process subjected onto multi engine aircraft A method and apparatus is provided for countering asymmetrical aerodynamic forces subjected onto an aircraft. Asymmetrical forces are counteracted by this invention automatically by selectively actuating force inducing elements in response detection of on... | 08/01/2000 |
| 5895015 | Automatic flap An automatic flap that uses on each wing two adjacent fins, one of which is smaller and is located on the middle or front of the wing, the other, which is larger, on the bottom rear of the wing, with a shaft in the common eccentric zone linking the two fi... | 04/20/1999 |
| 5588620 | Radial-force spoiler system Arcs of segmented spoilers generate a ring on intake airfoil surface of cantilever-suspended jet engines. Strain and temperature sensors on sides of a cantilever connecting structure feed data to a stress-limiting computer whose output communicates with a... | 12/31/1996 |
| 5458304 | Disk spoiler system Spoilers, mounted on vertical stabilizer tail surfaces of large aircraft release controllable Bernoulli forces to augment rudder and aileron aircraft controls. Data from surface pressure sensors, also mounted on vertical stabilizer tail surface, is comput... | 10/17/1995 |
| 5112009 | Pitch control system for aircraft A pitch control system for an aircraft flying at a Mach number greater than 0.7 and including a horizontal plane that is adjustable in deflection and air brakes having a nose-down effect. According to the invention, the system comprises: first means provi... | 05/12/1992 |
| 4717097 | Aircraft wings with aileron-supported ground speed spoilers and trailing edge flaps Aileron-supported split flaps and ground speed spoilers (collectively referred to as "aerodynamic lifting or braking devices") for reducing aircraft approach speeds and reducing the length of the runway needed to land the aircraft. The actuating mechanism... | 01/05/1988 |
| 4693437 | Spoileron control mechanism A spoileron control mechanism is shown which provides for separate or simultaneous braking and rolling of the aircraft through operation of spoilers located on the wings. The control mechanism includes a base to which is mounted two pivot brackets 2. Pivo... | 09/15/1987 |
| 4566657 | Span loaded flying wing control A flying wing aircraft control for angle of attack and direction thereof, comprising retractile controlling surfaces rearward of the center of lift and along the trailing edges and extensible over the top and bottom cambers of the wing in spaced relation ... | 01/28/1986 |
| 4466586 | Directional control device for aircraft A yaw control arrangement for tailless aircraft utilizing a plurality of rudder-like surfaces which are normally retracted into the surface of an aircraft wing and extended only momentarily on demand to generate a yawing moment. The surfaces are mounted o... | 08/21/1984 |
| 4391424 | Method and structure for airfoil thrust and lift control A method and structure for selectively conducting pressurized gas flow over the upper surface of an airfoil, the airflow being selectively directable either rearward through a spanwise outlet to produce thrust and augment lift or, alternatively, directed ... | 07/05/1983 |
| 4363098 | Electric command spoiler system An aircraft spoiler control system wherein each of a plurality of spoilers is driven by an electrically responsive actuator. Sense signals representative of the aircraft's control wheel rotation, speedbrake lever deflection, flap position and air/ground s... | 12/07/1982 |
| 4270712 | Method and apparatus for rolling control of airplanes by means of spoilers This invention relates to a method for rolling control of an airplane by means of spoilers mounted at lift surfaces, which comprises subdividing the entire control range into a plurality of firmly graduated and successively adjustable control steps, and a... | 06/02/1981 |
| 4143839 | Apparatus for combating rolling movements of aircraft The apparatus operates to prevent the rolling of an aircraft having an even number of propulsion units when one of the propulsion units stops operating due to a breakdown. Spoilers are mounted on the outboard wings. Each spoiler has an individual drive co... | 03/13/1979 |
| 4039162 | Spoiler control system Control system for aircraft wing spoilers in which the amount of centering moment provided by the downwardly moving or aerodynamically inactive spoiler is increased as the aircraft flaps are extended, the control system including a differential linkage me... | 08/02/1977 |
| 4014481 | Towed craft for representing aerial targets A target aircraft adapted to be towed by an airplane, comprising a fuselage, a tail assembly, two pairs of wings mounted on the fuselage in a cross-like configuration, spoilers mounted in each of the wings, and electromagnets for actuating the spoilers.... | 03/29/1977 |