Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8122997 | Sound insulation structure with resonator To enhance the noise reducing effect of a sound insulation structure which includes a cover member for covering a power unit from the outside so as to reduce the radiant sound generated from the power unit, and a resonator. A sound insulation structure includes an a... | 02/28/2012 |
| 8061475 | Soundproof cover and method for producing the same The present invention relates to a soundproof cover containing: a sound-absorbing material disposed facing to a sound source; a soft sound-insulating layer laminated on the sound-absorbing material and having an air permeability measured according to JIS L 1018 (199... | 11/22/2011 |
| 8061474 | Perforation acoustic muffler assembly and method of reducing noise transmission through objects A noise attenuation system is disclosed for use in a structure having a recessed fixture mounted therein or other unit which creates a hole in the structure in which it is secured, such as a ceiling. The noise attenuation system is constructed to permit the absorpti... | 11/22/2011 |
| 8028795 | Exhaust component cover A lightweight exhaust component cover having a small number of components is disclosed. In the exhaust component cover, an internal plate is formed by bending part of a single plate at both ends, and the internal plate is joined to the inside surface of an external ... | 10/04/2011 |
| 8020662 | Acoustic base tray for a dishwashing appliance, and associated method An apparatus and associated method for attenuating noise generated by a dishwashing appliance in operation is provided herein. During operation a dishwasher and its components generate thermo-acoustic waves associated with noise. A base tray comprising a major surfa... | 09/20/2011 |
| 7971680 | Acoustic systems for lighting in suspended ceilings An acoustic housing, a light fixture, a suspended ceiling system, and a method of decreasing sound transfer from a light fixture in a suspended ceiling are disclosed. An acoustic hood for a light fixture in a suspended ceiling may include a partially enclosed space ... | 07/05/2011 |
| 7441533 | Cover assembly for an internal combustion engine A cover assembly is provided, such as a camshaft cover or valve cover, for an internal combustion engine. The cover assembly includes a cover member with a contoured surface. An acoustic barrier member is generally coextensive with the cover member and at least part... | 10/28/2008 |
| 7431128 | Noise absorbing structure of instrument panel A noise absorbing structure of an instrument panel of a vehicle includes a first noise absorbing panel, provided in the instrument panel disposed in front of a driver seat of the vehicle, a second noise absorbing panel, provided in the instrument panel disposed in f... | 10/07/2008 |
| 7369664 | Hands-free microphone with wind guard An airflow guard for a microphone includes a shell having an airflow diverter and a flow separation edge. The airflow diverter partially surrounds the microphone to redirect a flow of air away from the microphone. The flow of air separates from one of the airflow di... | 05/06/2008 |
| 7341448 | Gas-fired heating apparatus The gas-fired heating apparatus, especially a water heater, has a combustion chamber (2a); an atmospheric gas burner (5) within the combustion chamber (2a); a combustion gas/air supply system (18) having an intake device ( | 03/11/2008 |
| 7314113 | Acoustic absorbers for use with computer cabinet fans and other cooling systems Systems and methods for absorbing acoustic noise generated by computer cabinet cooling fans are described herein. In one embodiment, an acoustic absorber for use with a fan carried by a computer cabinet in a room includes a first acoustic panel spaced apart from a s... | 01/01/2008 |
| 7273128 | Vibration proofing heat shield plate A vibration proofing heat shield plate fixed such as to cover at least a part of a heat source while forming a gap with respect to a surface of the heat source is provided with a vibration proofing heat shield plate main body portion, a collar member positioned at a... | 09/25/2007 |
| 7255196 | Windshield and sound-barrier for seismic sensors A system and method for reducing acoustic, wind or other background noise that may interfere with sensing of a seismic signal is provided. More specifically, a shield is provided to enclose a geophone and thereby protect it from harmful noise. The shield may compris... | 08/14/2007 |
| 7243068 | Microphone setup and testing in voice recognition software Systems, devices, and methods for performing a microphone test routine are disclosed during an initial setup of a speech recognition program and at a predetermined time intervals during use of the speech recognition program to detect recognition errors associated wi... | 07/10/2007 |
| 7233254 | Lowerable smoke detector A lowered smoke detector is disclosed. It comprises a sensor and a mounting system. The mounting system includes a frame, a securing device, a reel, a flexible member, a mounting adaptor, an activator, and a cover. The frame is mounted to the wall with the securing ... | 06/19/2007 |
| 7147074 | Snowmobile A snowmobile including a chassis, shell, and an engine. The shell may be fixed to a front portion of the chassis and extend away from the chassis in a forward direction. The shell may be disposed forward of the steering axis. The shell may define a chamber that flui... | 12/12/2006 |
| RE39260 | Thermal and acoustical insulating shield A flexible, adhesively attachable, self-sealing, thermal and acoustical insulating shield has a needled, flexible, fibrous batt having an insulating layer of insulating fibers disposed between opposite binding layers of binding fibers. Binding fibers of each binding... | 09/05/2006 |
| 6966402 | Acoustical heat shield A heat shield includes an inner portion, an outer portion, first and second insulating portions, and a deflecting portion. The inner portion includes a reflective material to reflect thermal energy that radiates from a heat/acoustic source. The outer portion include... | 11/22/2005 |
| 6953104 | Muffin fan hush hood A low noise method and apparatus with the apparatus including a hood for mounting over an exhaust outlet duct to capture a fluid stream and then redirect the fluid stream to a fluid outlet in the hood through the use of smoothly curving duct that maintains the fluid... | 10/11/2005 |
| 6935458 | Microphone shroud and related method of use A shroud and method capable of attenuating undesirable environmental noise from reaching a microphone. The shroud is a cover including a closed end, an open end substantially opposite of the closed end, and an intermediate portion that extends away from the closed e... | 08/30/2005 |
| 6933959 | Optical scanning device and image forming apparatus An optical box for positioning and fixing respective optical components is provided and functions as a housing thereof. A support stand for positioning and mounting the respective optical components, respectively, is formed separately from the optical box, and is lo... | 08/23/2005 |
| 6932190 | Sound jacket for noise reduction in refrigeration apparatus An insulating jacket for refrigeration system component comprising a closed cell insulation layer comprising an inner and outer surface, an open cell foam layer comprising an inner and outer surface, the inner surface in contact with the outer surface of the closed ... | 08/23/2005 |
| 6896095 | Fan shroud with built in noise reduction The present invention is a system and method to significantly reduce noise associated with air-moving devices such as an axial flow fan using a fan shroud and barrel combination with built in silencers such as Helmholtz resonators. The invention can be applied to a ... | 05/24/2005 |
| 6896097 | Mounting structure of speaker for vehicle A speaker box is covered with a buffer material exclusive of a portion where an acoustic output is derived from a speaker unit. The speaker box covered with the buffer material is attached to the surface of a wall member such as an interior member of a vehicle body ... | 05/24/2005 |
| 6808045 | Secondary acoustic attenuator for vehicle An acoustic barrier systems that reduces the amount of noise entering the passenger compartment of a vehicle includes a secondary acoustic attenuator that extends from a primary acoustic barrier to a vehicle component case to envelop space around a conduit passing f... | 10/26/2004 |
| 6805219 | Engine cover An engine cover has a cover body having a through hole penetrating both sides of the cover body in an area opposed to a resonant space in which resonant sounds are generated. An opening of the through hole is covered with the sound absorbing member layer. Because a ... | 10/19/2004 |
| 6769510 | Engine cover An engine cover mounted to an internal combustion engine of an automobile etc. includes a rigid cover body made of a resin or metal and covering an engine, a foamed member fixed to an inner face of the cover body and including at least a part spaced from the engine,... | 08/03/2004 |
| 6722466 | Acoustic blanket for machinery and method for attenuating sound An acoustic blanket is disclosed for an industrial machine including a plurality of flexible panels, wherein each panel includes at least one layer of a fiber glass material, an outer casing of a chemically resistant material and an attachment for connecting the pan... | 04/20/2004 |
| 6702061 | Environmentally protected microphone for an active noise control system An air introduction system (10) includes an active noise control system (22) having an environmentally protected microphone (24). A microphone support structure (26) defines a louvered cage (38) over a microphone reception cavity (40). The microphone (24)... | 03/09/2004 |
| 6631784 | Device for reducing noise emissions A device for reducing the noise emissions of a machine for printing flat material, wherein flat material is transportable across an impression cylinder, comprising at least one muffling element disposed across a portion of a transport path of the flat mat... | 10/14/2003 |
| 6581720 | Noise attenuating insulated heat shield An improved heat shield offers both a thermal insulation and reduced noise transmission for vehicular engine components, including exhaust manifolds, for example. The structure has three layers: an outer structural metal layer, a center insulation layer t... | 06/24/2003 |
| 6583290 | 14-methyl epothilone derivatives Compounds of the invention include 14-mehtyl epothilone derivatives. More generally, preferred compounds of the invention are those that can be produced by altering the epothilone PKS genes as described herein and optionally by action of epothilone modifi... | 06/24/2003 |
| 6457549 | Noise-absorbing structure for a cable reel A cable reel comprises a cable enclosure having a rubbing face, and a flat cable provided on the rubbing face. A noise-absorbing material is then fixed, without using adhesives, on the rubbing face on which the flat cable moves. The noise-absorbing materi... | 10/01/2002 |
| 6129176 | Sound attenuating motor end shield A hydraulic pump-motor having an end shield which deadens the sound generated by the pump-motor do thereby result in a quieter unit. The present invention provides a conventional hydraulic pump-motor having an electric motor coupled to a pumping mechanism... | 10/10/2000 |
| 6047790 | Sound damping device for oscillatory components of a motor vehicle hydraulic system A device for damping the sound emission from oscillatory components of a fluid container of a hydraulic system, primarily in a motor vehicle. At least one vibration damping mass is coupled to the wall of a component subject to sound damping. The mass is a... | 04/11/2000 |
| 5996729 | Sound deflector A sound deflector comprising of a curved deflecting surface, with the deflector being connected to the back of a boat. The sound deflector deflects the sounds emitting from the outboard of a boat away from the passengers in the cockpit. The deflector is c... | 12/07/1999 |
| 5696360 | Sound-absorbing motor mount for electric actuating drives in motor vehicles A motor mount is described for preventing the transmission of noisy vibration of the motor on vehicle body parts on which the motor is mounted by its motor housing. The motor housing is held by a carrier part that surrounds it. The carrier part is surroun... | 12/09/1997 |
| 5681072 | Sound absorber for motor vehicles A sound absorber for motor vehicles is constructed in the form of a double-wall, flat resonant body (1) with a perforated front wall (3) facing the noise source and a substantially unperforated rear wall (4). The sound absorber is constructed as a combine... | 10/28/1997 |
| 5508477 | Apparatus for acoustic noise reduction of office automation devices utilizing Helmholtz resonance theory An acoustic noise reduction apparatus for an office automation device is provided on a surface of an outer shield of the office automation device and has a hole therethrough. The body member of the apparatus defines an internal volume which covers the hol... | 04/16/1996 |
| 5386702 | Noise inhibiting arrangements for room air-conditioners Synthetic sponge or other resilient material is joined to the top of a room air-conditioner to absorb the physical impact of rain and dripping water to inhibit the creation of the noise that would otherwise occur. Additionally, a buffer formed with angula... | 02/07/1995 |
