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5559310 |
Muffler for air operated reciprocating pumps
An open path low back pressure muffler for reciprocating air motor pulsing exhaust providing an increased area inlet orifice, double flow path reversal with directional flow assistance and a...
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5550336 |
Turbine sound reducer
A turbine sound reducer for reducing high frequency noise generated by a bleed air discharge from a paint spraying equipment turbine for operation with a non-bleeder gun. The sound reducer includes...
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5521339 |
Catalyst muffler system
A muffler for coupling to an exhaust port of an internal combustion engine includes a housing, a first hollow body within the housing, a catalyzer within the first hollow body, and a second hollow...
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5500494 |
System for modifying operation of pneumatic tool
Apparatus for use in combination with a compressed air powered tool having an air exit port to modify the sound of the tool during operation. The apparatus includes a helical coil compression...
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5498842 |
Muffler for an internal combustion engine
A muffler for a two-stroke internal combustion engine having a housing and a partition wall which cooperate to define a first chamber adjacent an engine exhaust port and a second chamber remote...
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5489753 |
Static dissipative muffler
An auto-adjusting damper assembly for an air muffler, such assembly including a spring loaded damper plate located above an outlet hole for transferring some of the energy of incoming air into a...
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5451728 |
Muffler for two-cycle internal combustion engine and method of assembly
A muffler for a two-cycle internal combustion engine used to power lawn and garden equipment includes two mating shells and two plates, sandwiching a spark arrestor screen, are disposed between the...
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5432307 |
Noise damper for air pressure operated tools
Exhaust noise emitted by a pneumatically operated tool, such as a nailer, is damped by an external damping ring which surrounds the exhaust openings. Preferably, the damping ring is inserted into...
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5422444 |
Muffler for an internal combustion engine
A muffler, especially for an internal combustion engine of a chain saw, comprises a primary and a secondary chamber through which exhaust gases from the engine in turn flow. The primary chamber...
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5419404 |
Hydraulic impact hammer
The invention relates to a hydraulic impact hammer, comprising a protective casing made of two side plates, and provided with attenuation elements for eliminating the noise and vibration caused by...
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5418339 |
Pneumatic tool having noise reducing muffling structure
The present invention relates to a pneumatic tool having superior sound muffling performance. The pneumatic tool has an exhaust port, wherein a sound muffling structure comprising a nonwoven web of...
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5410110 |
Air silencer mounting arrangement
Disclosed herein is an air silencer mounting arrangement comprising a carburetor having an air induction passage including an air inlet portion, an air silencer having a wall extending transversely...
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5399817 |
Muffler
A muffler arrangement includes a muffler with an essentially cylindrical housing having a face end with a central entrance opening and at least one exit opening arranged other than centrally on the...
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5376762 |
Muffler for a fluid-activated, percussive apparatus
A muffler for a fluid-activated, percussive, impact apparatus includes a hollow, elongated shell, forming a closed exhaust chamber, extending lengthwise along a body of the apparatus, the shell...
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5373119 |
Exhaust muffler for internal combustion engine
A muffler for internal combustion engines is formed of vertically separable body sections so that the sound absorbing and filter members may be accessed easily for replacement and/or cleaning.
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5359159 |
Internal combustion engine
An internal combustion engine has a crankcase and a cylinder with an outlet with a first flange. A muffler having an inlet with a second flange is connected to the outlet with the inlet. The...
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5315075 |
Exhaust gas muffler for an internal combustion engine
The invention is directed to an exhaust gas muffler for an internal combustion engine such as a two-stroke engine for portable handheld tools such as a motor-driven chain saw. The engine includes a...
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5309714 |
Ratchet tool with exhaust chamber manifold with sound dampening properties
The tool includes a housing having two substantially semi-cylindrical members. An air motor in the housing has motor end members located adjacent each end thereof. Two O-rings, respectively...
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5266754 |
Gas blow-off attenuator
A gas blow-off noise attenuator comprising two or more perforate diffusion members through which gas is arranged to pass in succession wherein the total free area of perforation in each member...
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5244521 |
Pneumatic tool muffler system
Heat shrink tubing is disposed about a pneumatic tool and heat shrunk into position on the tool. Foraminous material is located between the tubing and tool in a restricted fluid-flow passageway...
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5137096 |
Dust boot and protective shroud for impact hammer
A flexible metal dust boot, comprising a bellows, and a surrounding protective shroud capable of withstanding high temperatures. The boot and shroud are mounted on a support plate, which can be...
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5097924 |
Muffler for a compressed air driven motor
A sound absorbing muffler for a compressed air driven motor has first and second mutually confronting end walls connected by four side walls. A pad of sound absorbing material constructed from SAE...
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5038815 |
Scrubber and muffler for exhaust gas from gas-powered valve actuators
Methods and apparatuses for cleaning and/or muffling a gas discharge which in one aspect includes a hollow body with a filter element mounted therein through which the discharge gas flows and in...
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5031508 |
Rivet setting tool
A pneumatically operated hydraulically intensified rivet setting tool exhausts into the intensifier sleeve above the piston where the air expands and exits between the sleeve and the housing...
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5022469 |
Exhaust means for pneumatic power tool
A sound depressing exhaust means for a pneumatic power tool with a substantially cylindrical housing (10) and a vane motor (11) with exhaust port means (23), has an annular casing (41) surrounding...
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4885979 |
Braking-power boosters with noise suppression
A braking-power booster including a valve for controlling the pressure that acts upon the booster piston. The valve has two radially spaced valve seats, which both face toward and seal off against...
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4879847 |
Cover for pneumatic tool
A cover for use with a motor and handle extending from the motor comprising, a soft, resilient, fairly rigid, thermoplastic elastomeric material of one-piece construction. The cover has a first...
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4846301 |
Silencer
The silencer according to the invention contains two chambers (10,11) separated by a partition wall (14) and includes also a guide plate (25) guiding cooling air from a fan (27) through a channel...
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4840234 |
Pneumatic ram boring machine
A pneumatic ram boring machine (12) has an air-permeable hollow cylinder (2) with a sound absorbing and/or oil separating packing (9, 11) arranged in the exhaust air stream of the machine.
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4832151 |
Muffler cover for internal combustion engine
A muffler cover has a plurality of air holes formed therein. At least part of the air holes is formed in such a manner as to have configurations which indicate characters or symbols, and at least...
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4781545 |
Rotary compressor with sound suppression tubular cavity section
A rotary compressor comprises a rotary shaft for compression action, a bearing which supports the rotary shaft and includes a discharge valve to discharge compressed gas and a sound suppression...
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4768616 |
Acoustic filter
An acoustic filter adapted to be fitted on a pipe for the purpose of absorbing pressure waves. The acoustic filter has a body constituted by a cylinder, an inlet and outlet end, a locking ring...
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4756230 |
Sound attenuator for pneumatic motors
A reciprocating piston and cylinder pneumatic motor with a sound-reducing system that diffuses exhausting air by directing it across the curved outer surface of the cylinder.
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4749058 |
Muffler
A sound attenuator may be directly threadedly connected to the exhaust port of a pneumatic device whose exhaust air is to be attenuated. A fail safe blowout plug is provided in the attenuator at...
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4739837 |
Pneumatic impact tool
A pneumatic impact tool comprising a casing having an interior space in which is mounted a piston for reciprocations under the action of compressed air for delivering useful blows, and ports of at...
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4662474 |
Noise suppressor for pneumatic tool
A noise suppressor for a pneumatic tool characterized by a plurality of annular or spiral suppression grooves on the inner wall of the body of pneumatic tool and a plurality of air being holes at...
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4624339 |
Sound-proofing casing for a pneumatic percussive drill
The internal absorbent layer (9) of the casing delimits an internal volume (10) around the drill (1), which volume is divided on either side of the exhaust orifice (3) by two transverse partitions...
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4624415 |
Control assembly
This invention is directed to a nozzle or spout for a sanitary fitting, which is arranged and constructed to reduce the noise of fluid, (water), as it flows through the nozzle or spout passageway...
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4611671 |
Vibration insulating handle
A vibration insulating handle for a pneumatic power tool comprising an inner tube (15) and an outer tube (16) both rigidly but adjustably attached to the tool housing (10). The inner tube (15)...
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4609069 |
Silencer for a pneumatically driven hydraulic jack
A silencer for a pneumatically operated hydraulic jack equipped with an air motor is provided. The silencer comprises a first low-pressure chamber formed contiguously to the rear wall of the main...
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4591009 |
Drill soundproofing device
A soundproofing device for a drill which has an elongate shaft extending between a bit and a forged collar for attaching it to a pneumatic hammer comprises a sheath formed by a semi-rigid tube of...
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4570745 |
Method and apparatus for minimizing pulsations in fluid transmission systems
Acoustic pulsations in fluid transmission systems such as gas pipelines, engine exhaust systems and compressed air networks are suppressed by an acoustic filter comprising an enlarged pressure...
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4565259 |
Connection block
A connection block or adapter for joining up pneumatic components is made with an exhaust muffler to let off air from components into the outside atmosphere. The muffler is composed of a chamber...
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4558763 |
Muffler for a pneumatic hammer
A muffler for a pneumatic hammer of the type in which a cylinder receives a piston or ram which is pneumatically driven into contact with an anvil, e.g. the rear end of a tool, and in which the...
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4535680 |
Pneumatic servo booster
A pneumatic servo booster including a housing, a power piston unit partitioning the interior of the housing into front and rear chambers and having therein a first passage with one end opening to...
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4496023 |
Pneumatically operated impact tool
A plastic silencer (12) surrounds a compressed air tool (11) and forms an exhaust chamber (27) around the tool. Two exhaust tubes (31, 32) from the chamber (27) are to the greater part situated in...
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4474260 |
Fluid operated vacuum device having improved exhaust muffler
A fluid operated vacuum device for manipulating a workpiece includes a rectangularly shaped metal body having a plurality of fluid passageways therein. One passageway communicates with a suction...
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4461204 |
Anti-freezing device for pneumatic tools
The invention concerns an anti-freezing device for pneumatic tools to avoid the immobilization of the striker piston because of freezing up. A thermally insulating sleeve, broken only at the level...
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4449609 |
Muffler for pneumatic apparatus
A muffler for use with pneumatically powered apparatus has a cylindrical housing with air outlet slots, to the back of which there is a pipe-like damper cartridge. Within the cartridge there is an...
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4424883 |
Silencer for pneumatic equipment
Disclosed herein is a silencer constituted by a casing, open at the lower extremity made to communicate with the source of compressed gases, and closed at the top by a cover, inside which are...
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