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Class 181/201 - Offfice type devices (e.g., typewriters, teleprinters, etc.)


Subclass of Class 181 - Acoustics
Definition: Subject matter wherein the enclosure is for machines normally
No. of patents: 25
Last issue date: 04/08/2008


NumberTitleIssue Date
7353908Method and system for attenuating noise from a cabinet housing computer equipment
An apparatus for attenuating noise emanating from a cabinet housing noise-generating equipment includes a frame including at least one support member configured to be mountable on the cabinet, proximate the noise-generating equipment, at least one noise attenuation ...
04/08/2008
7334662Equipment enclosure acoustical door with low impedance distributed air flow
An acoustic door for an equipment enclosure, such as a rack mount cabinet, also provides a low impedance air flow uniformly delivered across the cabinet opening. A pair of metal panels, with acoustic foam along the rear surfaces, extend angularly outward and toward ...
02/26/2008
7262962Techniques for cooling multiple sets of circuit boards connected by a midplane
An electronic equipment assembly includes a shelf having a front section configured to support a front set of circuit boards and a rear section configured to support a rear set of circuit boards. The electronic equipment assembly further includes a midplane disposed...
08/28/2007
7207737Thermal transfer printer cover
A system and method of protecting a printer housing against moisture infiltration, including affixing a fixed covering portion over the printer housing, wherein the affixing includes exposing a printing opening of the printer housing, and securing a removable coveri...
04/24/2007
7167363Methods and apparatus for directing an air stream through a circuit board assembly
An air stream distribution apparatus directs portions of an air stream, at substantially ambient temperatures, to serially arranged circuit board components of a circuit board assembly. The air stream distribution apparatus splits an incoming air stream into air str...
01/23/2007
7161801Commutate silencer of computer system
A commutate silencer of a computer system is described. The commutate silencer of the computer system is installed at the back end of the computer system, and comprises a shield device, a commutate device and at least one partition. The shield device comprises a fir...
01/09/2007
6722466Acoustic 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
6589643Energy conversion fiber and sound reducing material
A fiber body includes a collection of fibers containing thermoplastic resin as the main component and an energy consuming component, such as a piezoelectric material for converting and consuming external mechanical energy of sound and vibration. The energ...
07/08/2003
6481527Methods and apparatus for attenuating noise from a cabinet that houses computer equipment
An apparatus attenuates noise from a cabinet that houses computer equipment. The apparatus includes a frame, a set of positioning members to position the frame relative to the cabinet, and lateral noise absorption members that are supported by the frame. ...
11/19/2002
6129176Sound 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
6013362Soundproof material
A soundproof material comprising a porous member having an air permeation amount based on the pressure difference of 2.039×1/104 mmH2 O of from 1×1/1010 to 2×1/102 cc/cm2 /second, and having a comp...
01/11/2000
5121811Noise reducing device for printer
A noise reducing device for printers including a noise reducing hollow body consisting of at least one hollow duct at one side of a sheet delivery opening opposedly arranged to a printed sheet guiding-receiving member positioned at the other side of the s...
06/16/1992
4943173Sound dampening impact printer
A printer has a feeding path for guiding a printing paper from and toward an opening of the printer. A cross-sectional shape of the feeding path is minimized to be sufficient to pass the printing paper through the feeding path. At least one resonator is a...
07/24/1990
4729452Printer sound enclosure
A printer sound enclosure includes a perimeter wall defining a printer receiving compartment. A cover is positioned on the perimeter wall and is movable to permit access to the compartment for installing and operating a printer. An air duct is situated on...
03/08/1988
4726699Noise attenuation in printers
Sound attenuation for a printer which includes impacting print elements and other movable noise producing parts being mounted to a frame and further including a biparted housing; the frame bottom having downwardly extending feet by means of which the prin...
02/23/1988
4636101Low-noise type impact printer
The noise level of an impact printer is reduced by at least 5 dB by providing a resonant absorption chamber between the printer frame and the cover which is designed so as to have a resonance frequency corresponding to the fundamental frequency of the pri...
01/13/1987
4600326Casing structure for electrical and mechanical units
A casing structure which includes a first casing unit having a first compartment and a second compartment, and a second casing unit having a third compartment. The second casing unit is pivotably connected to the first casing unit so as to open or close w...
07/15/1986
4550798Acoustic panel and enclosure
An acoustic enclosure (10) has interconnected sound reducing panels forming a substantially rectangular structure which is configured to house a computer printer. Each side (12,14) panel is a multiple strata panel having an outer polymeric stratum (26), a...
11/05/1985
4465390Printer comprising a noise-sealing paper-transport roller
A printer in which paper transport takes place from a sealed entrance opening in a housing to the printing area, and then to a sealed exit opening of the housing. The entrance and exit opening is sealed against escape of noise by a rotatable cylindrical f...
08/14/1984
4431324Sound damping ribbon cartridge for a typewriter or similar office machine
In a ribbon cartridge for an office writing machine, which cartridge includes a housing having a base plate, a supply reel and a take-up reel mounted in the housing, a carbon ribbon wound around the reels and mounted to be conducted from the supply reel t...
02/14/1984
4252453Acoustic attenuator system for quietizing printers and the like
Apparatus for attenuating noise necessarily emitted from output slots of a printer mechanism enclosure and utilizing a minimal amount of enclosure components of significantly reduced size. Input and output housings or compartments for noise attenuation ar...
02/24/1981
4239398Device for attenuating noise emitted to the environment by noise-generating aggregates having simultaneous dissipation of heat
A device for attenuating noise emitted to the environment by noise-generating aggregates, while simultaneously dissipating heat, provides a housing about the noise-generating aggregate, which housing comprises a pot-shaped capsule of noise-attenuating mat...
12/16/1980
4215762Acoustical enclosure
An acoustical enclosure for isolating high-frequency noise produced by automatic business machines, such as typewriters and teletypes. A top paper-feed housing is removable and a midsection is hinged to permit access to the enclosed machine. An exhaust fa...
08/05/1980
4135830Wire printer printing head
A wire printer printing head comprises a support member, a plurality of printing elements having a print wire with a flap-armature electromagnet and a sound absorbing cover. The printing element are radially and slidably mounted to the support member and ...
01/23/1979
3930559Sound insulating hoods for noise emitting apparatus
A sound insulating hood or cover for a noise emitting apparatus such as teleprinter having a bottom portion, two side walls, a front wall, a back wall and an upper portion. The inner dimension of the hood slightly exceeds the dimension of the apparatus. A...
01/06/1976
 
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