Quotables
"The horse is here to stay, the automobile is only a novelty - fad."
President of Michigan Savings Bank ; 1903
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 |
| 7000460 | Multiple engine test system A multiple engine test system that includes an engine test bed system for holding a specific engine type, a mounting frame, and a handling system for transporting the engine test bed system from storage to the mounting frame. The engine test bed system has all the p... | 02/21/2006 |
| 6772856 | Fine jet control-type sound absorption system The fine jet control type sound absorption system of this invention, aimed at absorbing low-frequency sound with both discrete frequency and broadband frequency to the same degree as already existing acoustic lining can do, is composed of two parts. One is a barrier... | 08/10/2004 |
| 6340068 | Use of a material with a high internal damping for a component of a sound-emitting machine A sound generating or emitting machine having a component comprising a material with a high internal damping and tensile strength, the material comprising (1) a metallic base material, and (2) a metallic second phase with an at least partially martensitic... | 01/22/2002 |
| 6244377 | Apparatus for absorbing machinery sound A machinery sound absorbing apparatus includes a machine which generates a machinery sound, and a sound absorbing unit provided above the machine to have a convex shape in an upward direction. The sound absorbing unit includes a reflection plane as an und... | 06/12/2001 |
| 6119808 | Transportable acoustic screening chamber for testing sound emitters An acoustic testing device is relatively small enough and light enough to be transported from business to business and room to room, and yet still has acoustic characteristics sufficient to characterize a test item's noise profile in a relatively short pe... | 09/19/2000 |
| 5377534 | Ground test installation for the jet engines of an airliner The present invention relates to a ground test installation for the jet engines (5A, 5B) of an airliner (2) equipped with at least two jet engines linked to the wings of the aircraft, comprising, for each jet engine (5A, 5B), a silencer (8A, 8B) having a ... | 01/03/1995 |
| 4997058 | Sound transducer An improved flat sound transducer including a planar diaphragm having at least one region suited for reproduction of low frequencies and one region suited for reproduction of high frequencies wherein the frame of the flat sound transducer is used to sandw... | 03/05/1991 |
| 3941205 | Method and means for controlling the air pressure in a sound-proofed hangar for testing jet engines A method and means of controlling the air pressure in a sound-proofed hangar in which jet engines are tested, the amount of cooling air sucked into the exhaust gas silencer by the injection action of the exhaust gas jet being adjusted by varying the flow ... | 03/02/1976 |
