| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 181207000 | Mechanical vibration attenuator | 47 |
| 20080245603 | ACOUSTICAL SOUND PROOFING MATERIAL WITH IMPROVED FRACTURE CHARACTERISTICS AND METHODS FOR MANUFACTURING SAME - A material for use in building construction (partition, wall, ceiling, floor or door) that exhibits improved acoustical sound proofing and fracture characteristics optimized for efficient installation. The material comprises a laminated structure having as an integral part thereof one or more layers of viscoelastic material which also functions both as a glue and as an energy dissipating layer; and one or more constraining layers, such as gypsum or cement-based panel products modified for easy fracture. In one embodiment, standard paper-faced wallboard, typically gypsum, comprises the external surfaces of the laminated structure with the inner surface of said wallboard being bare with no paper or other material being placed thereon. The resulting structure improves the attenuation of sound transmitted through the structure while also allowing installation of the sound proofing material as efficiently as the installation of standard material when the sound proofing material is used alone or incorporated into a partition assembly. | 10-09-2008 |
| 20090050402 | NOISE SUPPRESSION STRUCTURE - In a noise suppression structure of the present invention, a sound absorption sheet is pinched between a flange of a speaker grille and an interior trim. An opening of a space formed by the flange of the speaker grille and a sound guiding tube is covered with the sound absorption sheet. | 02-26-2009 |
| 20090188746 | Vibration Damping Material - The invention provides a vibration damping material excellent in vibration damping property and lightness, and in particular, a vibration damping material which can be preferably used for cars required to be light. In the vibration damping material of the invention, a foamed adhesive layer is integrally laminated onto one of the surfaces of a foamed thermoplastic resin sheet. Thus, vibration energy transmitted to the vibration damping material is smoothly absorbed by a synergetic effect of rigidity of the foamed thermoplastic resin sheet and viscoelasticity of the foamed adhesive layer, so that excellent vibration damping property is exhibited. Furthermore, the vibration damping material of the invention is excellent in lightness. Thus, the material can be preferably used for articles desired to be light, such as vehicles including cars and trains. The material is also excellent in a constructing property since the material is light. | 07-30-2009 |
| 20090242322 | DAMPER AND FIXING DEVICE USING THE SAME - The invention discloses a damper including a damping portion, a first pillar-shaped portion, a second pillar-shaped portion and a first block portion. The damping portion has a first end and a second end. The first pillar-shaped portion protrudes from the first end of the damping portion, and the second pillar-shaped portion protrudes from the second end of the damping portion. The first pillar-shaped portion has a third end away from the first end of the damping portion, and the first block portion protrudes from the third end. In the invention, the damper can fix a speaker to a base directly without screws. | 10-01-2009 |
| 20090260917 | Cladding part for component - The invention relates to a cladding part for components. The cladding part has at least two areas with different vibration damping properties. The different areas make it possible in a simple manner to meet partly conflicting requirements for cladding parts of the components in an optimum manner. The components include medical examination devices. | 10-22-2009 |
| 20090283356 | Solid-borne sound reducing structure - It is an object of the present invention to provide a solid-borne sound reducing structure which is able to reduce solid-borne sound with a simple configuration, highly durable, and being less degraded. | 11-19-2009 |
| 20090283357 | ADJUSTABLE TUBULAR NVH DAMPER AND TORSION ABSORBER - Respectively tapered and threaded pipe ends are rotated respective to each other to connect the pipe ends and progressively compress a yieldable damper sleeve therebetween as the pipes are rotated. NVH and torsional forces from one pipe end to another are suppressed. | 11-19-2009 |
| 20100116584 | NOISE ATTENUATOR FOR SIDE WALL PANEL - A noise attenuator for attaching a side wall panel to a frame that is exposed to vibratory loads and which includes a rigid core having a sleeve with two radially disposed end plates. A bracket encircles a portion of said sleeve between the end plates and is in non-contiguous relationship with the core. An elastomeric bushing is bonded to a portion of the bracket and the core with the exception of the outer faces of the end plates, which remain exposed. Voids are passed through the rear plate and extend axially between the bracket and the sleeve some length into the sleeve. Due to the geometry of the unit, the non-voided sections of the bushing are loaded in either a combination of tension and shear or compression and shear when the core is connected to a vibrating frame and the bracket is connected to a side wall panel. | 05-13-2010 |
| 20100126796 | CHROMATE-FREE RESIN-COMPOSITE VIBRATION DEADENING MATERIAL - Disclosed is a chromate-free resin composite damping material having a multilayer structure wherein a viscoelastic resin composition is interposed, as an intermediate layer, between metal plates. This chromate-free resin composite damping material is characterized in that (i) the viscoelastic resin composition is a thermosetting resin composed of an amorphous copolymerized polyester resin and a curing agent, and in that (ii) a chromate-free adhesive foundation film composed of 5-50% by mass of silica, 5-50% by mass of a polyester resin, 1-50% by mass of tannic acid and 0-30% by mass of a silane coupling agent is arranged on a metal plate surface which is in contact with the viscoelastic resin composition. This chromate-free resin composite damping material is excellent in durable adhesion. | 05-27-2010 |
| 20100133037 | GLAZING UNIT WITH IMPROVED VIBRO-ACOUSTIC DAMPING PROPERTIES, METHOD FOR MAKING SUCH GLAZING UNIT AND METHOD FOR ACOUSTIC PROTECTION IN A VEHICLE PASSENGER COMPARTMENT - A glazing unit with improved vibro-acoustic damping properties, including at least one glass sheet and at least one vibro-acoustic damping strip fastened onto at least one of faces of the glass sheet and that includes at least one element made of damping material having a loss factor of at least 0.4 and a Young's modulus of less than 200 MPa at 20° C. for frequencies below 5000 Hz. The strip also includes at least one weighting element that has a linear mass of greater than 0.05 kg/m and is fastened onto the element made of damping material, the element made of damping material being inserted between the glass sheet and the weighting element, and no device other than the glazing unit being joined to the strip. | 06-03-2010 |
| 20100140013 | MULTILAYER BOARD FOR REDUCING SOLID-BORNE SOUND - A multilayer board for reducing solid-borne sound radiation with improved mechanical stability when subjected to a load, comprising a first cover layer, a second cover layer, and at least one core layer, wherein the at least one core layer is arranged between the first and the second cover layer, and wherein the at least one core layer comprises at least one first sloped slot. | 06-10-2010 |
| 20100206661 | ACOUSTIC WAVEGUIDE VIBRATION DAMPING - An acoustic waveguide with at least two portions coupled by vibration damping structure. The vibration damping structure may be a conformable material such as closed cell foam. The vibration damping structure may further include structure for inhibiting motion in a direction transverse to the interface between the vibration damping structure and a portion of the waveguide. | 08-19-2010 |
| 20100206662 | VIBRATION DAMPING SHEET - Disclosed is a vibration damping sheet ( | 08-19-2010 |
| 20100230202 | Automated Placement of Vibration Damping Materials - Damping material is installed on a structure by moving a material placement head over the structure, and using the head to place the material on the structure. | 09-16-2010 |
| 20100230203 | Energy Absorbing Thermoplastic Elastomer - The present invention relates to a method for vibration damping and noise reduction by using thermoplastic vulcanizate compositions and to multilayer structures for use in vibration damping and noise reduction applications comprising at least one polymeric layer made of a thermoplastic vulcanizate composition. | 09-16-2010 |
| 20100252359 | LOW INTERFACE NOISE ROTARY SHAFT TIPS - A rotary shaft having ends with a surface layer or raised portions made of a compressible, preferably elastic, material, the ends including the surface layer or raised portions being covered with relatively thin walled durable plastic tubing. | 10-07-2010 |
| 20110139539 | STRUCTURE FOR REDUCING ACOUSTIC LOAD - Provided is a structure for reducing an acoustic load. The structure includes a tape structure. The tape structure includes an attachment part configured to be attached to a substrate, and an off-position part spaced apart from the substrate and having at least one ventilation hole. Therefore, owing to the resilience of the attachment part and shock-absorbing ability of an air layer formed between the off-position part and the substrate, an acoustic load can be reduced. In addition, since air can flow through the ventilation hole, the attachment part of the tape structure may be not separated by variations of air pressure. | 06-16-2011 |
| 20110240402 | UNIT WITH A SOUND ISOLATION/VIBRATION ISOLATION STRUCTURE, ARRAY EMPLOYING THE SAME, AND METHOD FOR FABRICATING THE SAME - The disclosure provides a unit with a sound isolation/vibration isolation structure, an array employing the same, and a method for fabricating the same. The unit with a sound isolation/vibration isolation structure includes: a hollow frame surrounding an inside space; a film disposed within the inside space, vertically contacting an inside wall of the hollow frame; and a body mass disposed on a top surface of the film. Particularly, the horizontal area of the inside space is larger than the area of the top surface of the film. | 10-06-2011 |
| 20110247892 | NOISE REDUCING DEVICE FOR TIMING CHAIN OF DIESEL ENGINE - The present invention has a guide preventing radial vibration of a high-pressure pump sprocket engaged with a timing chain to transmit rotational power to from the timing chain to a high-pressure pump driving shaft and a guide formed on a timing chain cover to interact with the guide, in order to provide a noise reducing device for a timing chain of a diesel engine that can improve engagement between the high-pressure pump sprocket and the timing chain and effectively reduce operational noise generated in driving the timing chain, by appropriately supporting the high-pressure pump sprocket integrally rotatably fitted on the high-pressure pump driving shaft radially against the timing chain cover to prevent bending vibration of the high-pressure pump driving shaft. | 10-13-2011 |
| 20120061176 | APPARATUS AND METHOD FOR PROVIDING ACOUSTIC METAMATERIAL - A method for fabricating an acoustic metamaterial may include providing a planar pattern of springs arranged in columns and rows and separated from each other by interconnection nodes, providing a planar pattern of mass units separated from each other by a distance corresponding to a distance between the interconnection nodes, providing an array of vertically oriented springs separated from each other by the distance between the interconnection nodes, and aligning and joining the planar pattern of springs, the planar pattern of mass units and the array of vertically oriented springs to form a layer of unit cells. | 03-15-2012 |
| 20120111661 | PANEL MOUNTING STRUCTURE WITH SOUND REDUCTION MEMBER - A panel mounting structure for a vehicle is provided having a substrate; a panel; and a separable sound reduction member disposed between the panel and the substrate and being configured to separate into at least two pieces that each remain in substantially fixed relation to a different one of the panel and the substrate, and having a material selected so that the impact of the pieces with each other causes relatively little sound. The material can be configured to separate to form the at least two pieces due to relative motion between the substrate and panel. In specific embodiments, the sound reduction member can be comprised of a sound reduction member, such as felt, or a sound reduction member layer and an adherent backing layer. | 05-10-2012 |
| 20120292125 | DOOR MODULE HAVING AN ACOUSTIC UNCOUPLING MEANS - A door module of a vehicle door is provided. The door module comprising a carrier plate, a drive unit arranged on the carrier plate for driving a power-operated adjustment device of the door module, and a decoupling means arranged on the carrier plate for attenuating an acoustic excitation of the carrier plate in operation of the drive unit. The decoupling means is formed by at least one slot, which partly separates a portion carrying the drive unit from another portion of the carrier plate and extends around the drive unit or around a fastening point of the drive unit on the carrier plate in a circumferential direction, and at least one web, which connects the portion carrying the drive unit with the other portion of the carrier plate. | 11-22-2012 |
| 20120325577 | NOISE AND VIBRATION MITIGATING MAT - A noise and vibration mitigating mat having top and bottom surfaces comprises a first layer formed of recycled bound rubber product, the first layer having a contoured bottom surface and a generally flat top surface, a second layer on the top surface of the first layer, the second layer being formed of a fabric and a third layer on the second layer and being formed of recycled rubber product. | 12-27-2012 |
| 20130025961 | PHONONIC METAMATERIALS FOR VIBRATION ISOLATION AND FOCUSING OF ELASTIC WAVES - A methodology for designing structured metamaterials that can reflect, absorb and focus the propagation of both scalar acoustic and vector elastic waves is described. Three exemplary representative inventions based on the disclosed invention are described, illustrating i) compact ultra-wide broadband isolation, ii) sub-wavelength gaps and negative index propagation utilizing a single material platform, and iii) a fundamentally new method of producing multiple high frequency spectral gaps. Such metamaterial designs possess a wide range of potential applications, ranging from but not limited to, isolating an entity from external mechanical or acoustical vibrations, compact focusing lenses as well as cascaded high frequency filters for wave shaping and nonlinear wave propagation control. | 01-31-2013 |
| 20130206499 | INSULATOR FOR AUDIO AND METHOD FOR EVALUATING SAME - In a conventional hard material insulator, reproduced sound can be tuned with use of characteristics of the material; however, various types of acoustic materials have specific high frequency characteristics, and thus their acoustic effects lack versatility, require compatible audio devices, and change with environment, musical genre, etc. To address this, a wind-bell member (resonant member) is arranged in parallel with a main propagation path of vibration transferred from an audio device to an insulator. Accordingly, a vibration system of a wind-bell having a tone determined by many factors such as a fundamental tone, harmonic tones, lingering sound, and fluctuation assists (enhances) high frequency vibration propagated from the audio device. As a result, due to the above assist action that is different in principle from a conventional type, acoustic characteristics such as a sense of localization, resolution, and a sense of transparency and scale a sound image can be dramatically improved. | 08-15-2013 |
| 20130248281 | SPEAKER CABINET FOR ELECTRONIC DEVICE - The present disclosure relates to a speaker cabinet for electronic device, which is disposed in an electronic device and comprises a cabinet body, two first fixing structures, two dampers, and two second fixing structures. The damper is disposed on two side surfaces of the cabinet body through the two first fixing structures and fixed on the electronic device through the two second fixing structures for fixing the cabinet body in the electronic device. The cabinet speaker according to the present disclosure adopts only two fixing structures to fix the cabinet body to the electronic device. The damper is also used for mitigating the vibrations generated by the cabinet body. In addition, the two fixing structures are used for supporting the damper for avoiding inclination of the cabinet body towards an unpredictable direction and colliding the housing of the electronic device and its internal components. | 09-26-2013 |
| 20130327588 | METHODS AND APPARATUS FOR REDUCING NOISE IN REINFORCED SKIN STRUCTURES - Assemblies, methods, and an apparatus for damping vibrational energy induced to a reinforced skin structure are disclosed. The reinforced skin structure includes an outer wall and at least one stringer coupled to the outer wall. The method includes providing a damping apparatus that includes a stiffening member configured to adjust at least one of a bending mode and a torsional twisting mode of the stringer and an energy dissipation member configured to dissipate vibrational energy of the stringer. The stiffening member includes at least two elongated members that are spaced a distance apart and at least one truss member that extends obliquely between the at least two elongated members. The damping apparatus is attached to the at least one stringer. The damping apparatus may be configured to dampen vibration in the range of between about 200-600 Hz. | 12-12-2013 |
| 20130341119 | STRUCTURE WITH ACTIVE ACOUSTIC OPENINGS - An acoustic structure that includes a septum having an acoustic opening which defines an open area that varies in response to changes in the velocity of noise-containing media passing through the acoustic opening. The septum includes a fixed portion and one or more movable flapper portions wherein the fixed portion and/or the flapper portion(s) include surfaces that define an acoustic opening through the septum. The acoustic opening has an open area which varies due to movement of the movable flapper(s) in response to changes in velocity of the noise-containing media that passes through the acoustic opening. The resulting septum has a relatively low non-linearity factor (NLF). | 12-26-2013 |
| 20140048349 | BRACKET ASSEMBLY FOR AN AUDIO LOUDSPEAKER SYSTEM - A bracket assembly for an audio system that includes a mounting bracket slidably connected to a sub-assembly for attaching first and second loudspeaker enclosures of an audio loudspeaker system. The sub-assembly includes a plurality of vibration isolators disposed between a lower mounting bracket and an upper mounting bracket. The mounting bracket is attached to a first loudspeaker enclosure and the upper mounting bracket is attached to a second enclosure. First and second arms on the mounting bracket are inserted into first and second tracks on the lower mounting bracket to slidably attach the sub-assembly to the mounting bracket. | 02-20-2014 |
| 20140060962 | ACOUSTIC AND VIBRATIONAL ENERGY ABSORPTION METAMATERIALS - An acoustic/vibrational energy absorption metamaterial includes at least one enclosed planar frame with an elastic membrane attached having one or more rigid plates are attached. The rigid plates have asymmetric shapes, with a substantially straight edge at the attachment to said elastic membrane, so that the rigid plate establishes a cell having a predetermined mass. Vibrational motions of the structure contain a number of resonant modes with tunable resonant frequencies. | 03-06-2014 |
| 20140069737 | NOISE ATTENUATION DEVICE AND FLUID COUPLING COMPRISED THEREOF - Embodiments of a noise attenuation device comprise a plurality of stacked plates that form channels to reduce energy in a flow of working fluid that transits the noise attenuation device. In one embodiment, the stacked plates include plates having openings in different patterns. Orientation of the plates align the patterns in a housing to form the channels. In one example, the plates are disposed in a fluid coupling (e.g., a valve and/or flow regulator) that includes a throttling element. The plates are spaced apart from the throttling element, thereby permitting the working fluid to flow through all of the channels whether the throttling element is fully or partially open. | 03-13-2014 |
| 20140090922 | SIMPLIFIED MODAL ATTENUATOR - A modal attenuator may include an attenuator body having a lead-in segment and a lead-out segment joined by a connection segment, a perforated screen disposed within the attenuator body and spaced apart from the attenuator body to form an annular space, and a plurality of rings disposed between the perforated screen and the attenuator body. When fluid flows through the modal attenuator, sound waves pass through the perforated screen and are reflected back by the plurality of rings to disrupt other sound waves, thereby reducing fluid noise in the modal attenuator. | 04-03-2014 |
| 20140158457 | COULOMB FRICTIONAL DAMPING COATED PRODUCT - One variation may include a method of making frictional surfaces for products having coulomb friction damping are provided. The method may include coating a metallic member with a coating including friction material. The metallic member may be pressure rolled to achieve a desired coating thickness and or the metallic member may be micro-waved to cure the coating. | 06-12-2014 |
| 20140166391 | Attenuators, Arrangements of Attenuators, Acoustic Barriers and Methods for Constructing Acoustic Barriers - An arrangement comprising a plurality of attenuators for attenuating acoustic waves, each attenuator of the plurality of attenuators comprising: a first body defining a cavity therein and at least one open aperture extending across a portion of the first body, the first body being configured to attenuate acoustic waves over a resonant frequency band. | 06-19-2014 |
| 20140284137 | Protection of Electronic Devices Used with Perforating Guns - A sensing subassembly for use with a downhole tool comprises a housing, a cavity disposed within the housing, an electronic board disposed within the cavity, a stiffening member engaging the electronic board and configured to limit flexing of the electronic board, and a spring member configured to provide an isolation mount for the electronic board within the cavity. | 09-25-2014 |
| 20140318886 | ACOUSTIC AND ELASTIC FLATBAND FORMATION IN PHONONIC CRYSTALS:METHODS AND DEVICES FORMED THEREFROM - A phononic device is provided suitable for attenuating mechanical vibration, as well as acoustic vibration that propagate through a medium. Through the periodic inclusion of domains of a material in a matrix that vary in the ratio of the longitudinal speed of sound (CL) and the transverse speed of sound (CT) between the domains and the matrix of equal to or greater than 2.0 and 40, respectively; improved significant attenuation of vibration is achieved. | 10-30-2014 |
| 20160019879 | METAMATERIAL - A metamaterial ( | 01-21-2016 |
| 20160040566 | VIBRATION DAMPENING MUFFLER AND SYSTEM - Various methods and systems are provided for damping vibrations at a muffler. In one example, a system comprises an exhaust component, a muffler configured to receive exhaust gas from the exhaust component, and a vibration isolation device coupled between the exhaust component and the muffler, the vibration isolation device comprising a vibration dampening element and an active biasing element. | 02-11-2016 |
| 20160144805 | NONWOVEN ACOUSTIC SLEEVE AND METHOD OF CONSTRUCTION THEREOF - A flexible, resilient, non-woven acoustic sleeve and method of construction thereof is provided. The sleeve has an elongate nonwoven layer with opposite sides bonded to one along a lengthwise extending bonded seam, thereby forming a circumferentially enclosed inner cavity sized for receipt of an elongate member therethrough. The sleeve further includes a generally smooth inner scrim layer bonded to an inner surface of the nonwoven layer, wherein the smooth inner scrim layer forms a circumferentially continuous, smooth inner surface bounding the cavity, with the material of the inner scrim layer forming at least a portion of the bonded seam. | 05-26-2016 |
| 181208000 | Damping of flexural structure | 7 |
| 20080196968 | Sound Absorbing Element and Method for Producing a Sound Absorbing Element - A sound absorbing element, in one example, includes a first wall area, a second wall area as well as a plurality of spring elements. In this arrangement, the first wall area and the second wall area are arranged so as to be spaced apart by a clear space. In one example, the plurality of spring elements are arranged in the clear space and connect the first wall area and the second wall area to each other. By pre-tensioning the plurality of spring elements to a state in which their spring constant approaches zero, significant decoupling between the first and the second wall areas may occur, with accompanying sound noise reduction. | 08-21-2008 |
| 20080202846 | DEVICE AND METHOD FOR DAMPENING SOUND TRANSMISSION AND VIBRATION - A system and method is provided for dampening sound transmission and vibration for controlling noise in finished strata materials to which sound dampening channel members are attached. The system comprises a metal connector member including a base portion and at least one gripping portion joined to, and extending outwardly from, the base portion, for receiving and fixedly holding in place the metal sound dampening channel member on a structural support member. The metal sound dampening channel member being connectable to the gripping portion of the metal connector member and forming a gap therebetween without introducing energy transfer material in the gap thereby providing space for energy to dissipate throughout the gap and without creating any substantial hot spots. The metal connector member interconnected with the metal sound dampening channel member, joined to the structural support member, and attached to the finished strata material, dampening sound transmission and vibration in a frequency range up to about 6,000 Hz. in the finished strata material. | 08-28-2008 |
| 20100206663 | GLAZING UNIT HAVING AN IMPROVED VIBROACOUSTIC DAMPING PROPERTY, PROCESS FOR MANUFACTURING SUCH A GLAZING UNIT AND PROCESS FOR ACOUSTIC PROTECTION IN A VEHICLE PASSENGER COMPARTMENT - A glazing unit with an improved vibroacoustic damping property including at least one sheet of glass and at least one vibroacoustic damping strip that is attached to at least one of the faces of the glass sheet and that includes at least one component made of damping material having a loss factor greater than 0.2. The strip is not joined to any other device on the opposite side from the glass sheet and the component made of damping material has a Young's modulus greater than 800 MPa, at 20° C., for a particular frequency corresponding to the critical frequency of the glazing unit to within plus or minus 30%. | 08-19-2010 |
| 20120018245 | GLAZING UNIT WITH IMPROVED VIBROACOUSTIC DAMPING PROPERTIES, METHOD FOR MAKING SUCH A GLAZING UNIT AND METHOD FOR ACOUSTIC PROTECTION IN A VEHICLE PASSENGER COMPARTMENT - A glazing unit having improved vibroacoustic damping properties, including: at least one glass sheet; at least one vibroacoustic damping strip, the strip including at least one element made of damping material and the strip being fastened to one of the faces of the glass sheet. The face of the strip facing the glass sheet has a surface area in contact with the glass sheet which is strictly inferior to the surface area of the face of the strip facing the glass sheet. The glazing unit makes it possible to damp noise and vibrations while taking up little space. | 01-26-2012 |
| 20120205190 | Method for Attaching Protective Structure to Feed Beam, and Protective Structure in Rock Drilling Rig - A method for attaching a protective structure to a feed beam of a rock drilling rig, and a protective structure for a rock drilling rig. The protective structure is at least partly arranged around the feed beam so that as the feed beam bends in a bending direction of its longitudinal axis and/or twists about its longitudinal axis in a twisting direction, the protective structure substantially maintains its original shape. | 08-16-2012 |
| 20140014435 | TORSIONAL VIBRATION DAMPER WITH ARC SPRING AND END CAP - An end cap for an arc spring in a torsional vibration damper having a cylindrical section for engaging with the arc spring and a radial section at one end of the cylindrical section for engaging with an input or output side of the torsional vibration damper, the end cap being producible by shaping from a metal sheet. A torsional vibration damper for elastic transmission of torque between an input side and an output side including the described end cap for transmission of force between one of the sides and the arc spring. | 01-16-2014 |
| 20150060191 | DRIVE SYSTEM AND IMAGE FORMING APPARATUS INCLUDING SAME - A drive system includes multiple vibrating members that tend to vibrate when these members are driven and a holding system to hold the multiple vibrating members. The holding system at least includes a first holding unit and a second holding unit superimposed on and partially connected to each other. The multiple vibrating members include a first vibrating member and a second vibrating member. The first vibrating member is held by the first holding unit and is not held by the second holding unit. The second vibrating member is held by the second holding unit and is not held by the first holding unit. At least one of the first vibrating member and the second vibrating member is a driving device to drive another member as a drive source. | 03-05-2015 |
| 181209000 | Relatively moving parts | 1 |
| 20130299272 | Door Closing Noise Attenuator Releasably Attachable To Door Knobs - A noise attenuator for reducing clicking and slamming noises produced by the closing of a door includes a thin elongated rectangularly-shaped flexible, resiliently deformable padding member having D-shaped elastic strap loops protruding from opposite short vertical edges of the padding member. One of the strap loops is stretched to fit over a first door knob to thereby hang the attenuator from a first door knob preparatory to use. The padding member is pivoted to a horizontal use position over the door latch and the second loop stretched to fit over the second door knob. When the door is closed, the padding member prevents contact between metal parts of the door and door casing latching mechanism and prevents slamming contact between the door and members in the door casing. | 11-14-2013 |
