WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B25D　PERCUSSIVE TOOLS {(percussive machines for forging B21J; hand-held drilling machines, in general B23B 45/00, for wood B27C 3/08 ; drilling machines, used for mining or quarrying, with reciprocating tool which is turned intermittently when out of contact with the working face E21B 1/00) [M1204}

B25D 1/00 Hand hammers {(handles therefor B25G 1/00; attachment of handles to the hammer head B25G 3/00)}; Hammer heads of special shape or materials

B25D 1/005 ・{with nail feeding devices}

B25D 1/02 ・Inserts or attachments forming the striking part of hammer heads (B25D 1/08 to B25D 1/14 take precedence)

B25D 1/04 ・with provision for withdrawing or holding nails or spikes

B25D 1/045 ・・{with fulcrum member for extracting long nails}

B25D 1/06 ・・Magnetic holders

B25D 1/08 ・having deformable heads (B25D 1/12 takes precedence)

B25D 1/10 ・having work protector surrounding faces {(B25D 1/12 takes precedence)}

B25D 1/12 ・having shock-absorbing means

B25D 1/14 ・having plural striking faces

B25D 1/16 ・having the impacting head in the form of a sleeve slidable on a shaft, e.g. hammers for driving a valve or draw-off tube into a barrel

B25D 3/00 Hand chisels

B25D 5/00 Centre punches

B25D 5/02 ・Automatic centre punches

B25D 7/00 Picks {(combined with other tools B25F)}

B25D 9/00 Portable percussive tools with fluid-pressure drive, {i.e. driven directly by fluids}, e.g. having several percussive tool bits operated simultaneously {(B25D 15/00 ; portable non-percussive drilling tools driven by fluid pressure or pneumatic power B23B 45/04)}

B25D 9/005 ・{Devices for testing the tool`s performance}

B25D 9/02 ・of the tool-carrier piston type, i.e. in which the tool is connected to an impulse member

B25D 9/04 ・of the hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member

B25D 9/06 ・Means for driving the impulse member

B25D 9/08 ・・comprising a built-in air compressor, {i.e. the tool being driven by air pressure}

B25D 9/10 ・・comprising a built-in internal-combustion engine

B25D 9/11 ・・operated by combustion pressure generated by detonation of a cartridge

B25D 9/12 ・・comprising a built-in liquid motor, {i.e. the tool being driven by hydraulic pressure}

B25D 9/125 ・・・{driven directly by liquid pressure working with pulses}

B25D 9/14 ・Control devices for the reciprocating piston

B25D 9/145 ・・{for hydraulically actuated hammers having an accumulator}

B25D 9/16 ・・Valve arrangements therefor {(B25D 9/145 takes precedence)}

B25D 9/18 ・・・involving a piston-type slide valve

B25D 9/20 ・・・involving a tubular-type slide valve

B25D 9/22 ・・・involving a rotary-type slide valve

B25D 9/24 ・・・involving a rocking-plate type valve

B25D 9/26 ・・Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof {(control systems adapted for earth drilling E21B 44/00)}

B25D 9/265 ・・・{with arrangements for automatic stopping when the tool is lifted from the working face or suffers excessive bore resistance}

B25D 11/00 Portable percussive tools with electromotor {or other motor} drive

B25D 11/005 ・{Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface}

B25D 11/02 ・in which the tool is connected to an impulse member

B25D 11/04 ・in which the tool bit or anvil is hit by an impulse member

B25D 11/06 ・Means for driving the impulse member

B25D 11/062 ・・{comprising a wobbling mechanism, swash plate}

B25D 11/064 ・・{using an electromagnetic drive}

B25D 11/066 ・・{using centrifugal or rotary impact elements}

B25D 11/068 ・・・{in which the tool bit or anvil is hit by a rotary impulse member}

B25D 11/08 ・・comprising a worm mechanism, {i.e. a continuous guide surface with steadily rising and falling incline}

B25D 11/10 ・・comprising a cam mechanism

B25D 11/102 ・・・{the rotating axis of the cam member being coaxial with the axis of the tool}

B25D 11/104 ・・・・{with rollers or balls as cam surface}

B25D 11/106 ・・・・{cam member and cam follower having the same shape (B25D 11/104 takes precedence)}

B25D 11/108 ・・・{the rotation axis of the cam member being parallel but offset to the tool axis}

B25D 11/12 ・・comprising a crank mechanism

B25D 11/125 ・・・{with a fluid cushion between the crank drive and the striking body}

B25D 16/00 Portable percussive machines with superimposed rotation, {the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit (combined percussion and rotary drilling adapted for earth drilling E21B 6/00)}

B25D 16/003 ・{Clutches specially adapted therefor}

B25D 16/006 ・{Mode changers; Mechanisms connected thereto}

B25D 17/00 Details of, or accessories for, portable power-driven percussive tools {(details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F 5/00)}

B25D 17/005 ・{Attachments or adapters placed between tool and hammer}

B25D 17/02 ・Percussive tool bits {(drill bits for earth drilling E21B 10/00)}

B25D 17/04 ・Handles; Handle mountings

B25D 17/043 ・・{Handles resiliently mounted relative to the hammer housing (B25D 17/046 takes precedence)}

B25D 17/046 ・・{Sleeve-like handles surrounding the tool bit}

B25D 17/06 ・Hammer pistons; Anvils; {Guide-sleeves for pistons}

B25D 17/08 ・Means for retaining and guiding the tool bit, e.g. chucks {allowing axial oscillation of the tool bit (B25D 17/005 takes precedence)}

B25D 17/082 ・・{Retainers consisting of a swinging yoke or latching means (B25D 17/086 takes precedence)}

B25D 17/084 ・・{Rotating chucks or sockets}

B25D 17/086 ・・・{with a swinging yoke or latching means}

B25D 17/088 ・・・{with radial movable locking elements co-operating with bit shafts specially adapted therefor}

B25D 17/11 ・Arrangements of noise-damping means {(noise damping in general G10K 11/16)}

B25D 17/12 ・・of exhaust silencers {(exhaust silencers in general F01N)}

B25D 17/20 ・Devices for cleaning or cooling tool or work

B25D 17/22 ・・using pressure fluid

B25D 17/24 ・Damping the reaction force {(resiliently mounted handles B25D 17/043; dampers in connections of hammers to backhoes E02F 3/96D6)}

B25D 17/245 ・・{using a fluid}

B25D 17/26 ・Lubricating {(in general F16N)}

B25D 17/265 ・・{the lubricant being entrained to the machine parts by the driving fluid}

B25D 17/28 ・Supports; Devices for holding power-driven percussive tools in working position {(connections of hammers to backhoes E02F 3/96D6)}

B25D 17/30 ・・Pillars and struts

B25D 17/32 ・・Trolleys

B25D 2209/00 Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously

B25D 2209/002 ・Pressure accumulators

B25D 2209/005 ・having a tubular-slide valve, which is coaxial with the piston

B25D 2209/007 ・having a tubular-slide valve, which is not coaxial with the piston

B25D 2211/00 Details of portable percussive tools with electromotor or other motor drive

B25D 2211/003 ・Crossed drill and motor spindles

B25D 2211/006 ・Parallel drill and motor spindles

B25D 2211/06 ・Means for driving the impulse member

B25D 2211/061 ・・Swash-plate actuated impulse-driving mechanisms

B25D 2211/062 ・・Cam-actuated impulse-driving mechanisms

B25D 2211/064 ・・・Axial cams, e.g. two camming surfaces coaxial with drill spindle

B25D 2211/065 ・・・with ball-shaped or roll-shaped followers

B25D 2211/067 ・・・wherein the cams are involved in a progressive mutual engagement with increasing pressure of the tool to the working surface

B25D 2211/068 ・・Crank-actuated impulse-driving mechanisms

B25D 2216/00 Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit

B25D 2216/0007 ・Details of percussion or rotation modes

B25D 2216/0015 ・・Tools having a percussion-only mode

B25D 2216/0023 ・・Tools having a percussion-and-rotation mode

B25D 2216/003 ・・・comprising de-phasing of percussion and rotation

B25D 2216/0038 ・・Tools having a rotation-only mode

B25D 2216/0046 ・・Preventing rotation

B25D 2216/0053 ・・・and percussion

B25D 2216/0061 ・・・preventing reverse rotation

B25D 2216/0069 ・Locking means

B25D 2216/0076 ・Angular position of the chisel modifiable by hand

B25D 2216/0084 ・Mode-changing mechanisms

B25D 2216/0092 ・・Tool comprising two or more collaborating mode-changing mechanisms

B25D 2217/00 Details of, or accessories for, portable power-driven percussive tools

B25D 2217/0003 ・Details of shafts of percussive tool bits

B25D 2217/0007 ・・Shaft ends

B25D 2217/0011 ・Details of anvils, guide-sleeves or pistons

B25D 2217/0015 ・・Anvils

B25D 2217/0019 ・・Guide-sleeves

B25D 2217/0023 ・・Pistons

B25D 2217/0026 ・・・Double pistons

B25D 2217/003 ・Details relating to chucks with radially movable locking elements

B25D 2217/0034 ・・Details of shank profiles

B25D 2217/0038 ・・Locking members of special shape

B25D 2217/0042 ・・・Ball-shaped locking members

B25D 2217/0046 ・・・Conically-shaped locking members

B25D 2217/0049 ・・・Roll-shaped locking members

B25D 2217/0053 ・・Devices for securing the tool retainer to the machine part

B25D 2217/0057 ・Details related to cleaning or cooling the tool or workpiece

B25D 2217/0061 ・・related to cooling

B25D 2217/0065 ・・Use of dust covers

B25D 2217/0069 ・・・Protecting chucks against entering of chip dust

B25D 2217/0073 ・Arrangements for damping of the reaction force

B25D 2217/0076 ・・by use of counterweights

B25D 2217/008 ・・・being electronically-driven

B25D 2217/0084 ・・・being fluid-driven

B25D 2217/0088 ・・・being mechanically-driven

B25D 2217/0092 ・・・being spring-mounted

B25D 2217/0096 ・Details of lubrication means

B25D 2222/00 Materials of the tool or the workpiece

B25D 2222/03 ・Ceramics

B25D 2222/06 ・Composite materials

B25D 2222/09 ・Diamond

B25D 2222/12 ・Glass

B25D 2222/15 ・Ice

B25D 2222/18 ・Leather

B25D 2222/21 ・Metals

B25D 2222/24 ・・Aluminium

B25D 2222/27 ・・Brass

B25D 2222/31 ・・Bronze

B25D 2222/33 ・・Copper

B25D 2222/36 ・・Lead

B25D 2222/39 ・・Mercury

B25D 2222/42 ・・Steel

B25D 2222/45 ・・Titanium

B25D 2222/48 ・・Zinc

B25D 2222/51 ・・Hard metals, e.g. tungsten carbide

B25D 2222/54 ・Plastics

B25D 2222/57 ・・Elastomers, e.g. rubber

B25D 2222/61 ・・Polyamides, e.g. Nylon

B25D 2222/66 ・・Polypropylene

B25D 2222/69 ・・Foamed polymers, e.g. polyurethane foam

B25D 2222/72 ・Stone, rock or concrete

B25D 2222/75 ・Wood

B25D 2250/00 General details of portable percussive tools; Components used in portable percussive tools

B25D 2250/005 ・Adjustable tool components; Adjustable parameters

B25D 2250/011 ・・Bits, e.g. adjusting bits by setting in the desired angular position

B25D 2250/015 ・・Heads

B25D 2250/021 ・・Stroke length

B25D 2250/025 ・Auxiliary percussive devices

B25D 2250/035 ・Bleeding holes, e.g. in piston guide-sleeves

B25D 2250/041 ・Cable management or routing of electrical cables and wires

B25D 2250/045 ・Cams used in percussive tools

B25D 2250/051 ・Couplings, e.g. special connections between components

B25D 2250/055 ・Depth properties, e.g. tools having depth indicator or depth control

B25D 2250/065 ・Details regarding assembling of the tool

B25D 2250/071 ・・Assembled by brazing

B25D 2250/075 ・・Assembled by welding

B25D 2250/085 ・Elastic behaviour of tool components

B25D 2250/091 ・Electrically-powered tool components

B25D 2250/095 ・・Electric motors

B25D 2250/101 ・Emitting warning signals, e.g. visual or sound

B25D 2250/105 ・Exchangeable tool components

B25D 2250/111 ・・Bits, i.e. inserts or attachments for hammer, chisel, pick

B25D 2250/115 ・Foldable parts of the tool, e.g. in order to reduce its size.

B25D 2250/121 ・Housing details

B25D 2250/125 ・Hydraulic tool components

B25D 2250/131 ・Idling mode of tools

B25D 2250/141 ・Magnetic parts used in percussive tools

B25D 2250/145 ・・Electro-magnetic parts

B25D 2250/155 ・Marks, e.g. identification marks, indication scales, visualising means

B25D 2250/161 ・・Indication scales

B25D 2250/165 ・Overload clutches, torque limiters

B25D 2250/171 ・Percussive pulling action of tools for extraction of elements

B25D 2250/175 ・Phase shift of tool components

B25D 2250/181 ・Pneumatic tool components

B25D 2250/185 ・Pressure equalising means between sealed chambers

B25D 2250/191 ・Ram catchers for stopping the ram when entering idling mode

B25D 2250/195 ・Regulation means

B25D 2250/201 ・・for speed, e.g. drilling or percussion speed

B25D 2250/205 ・・for torque

B25D 2250/211 ・Cross-sections of the tool

B25D 2250/215 ・・Narrowing cross-sections

B25D 2250/221 ・Sensors

B25D 2250/225 ・Serrations

B25D 2250/231 ・Sleeve details

B25D 2250/235 ・・Sleeve couplings

B25D 2250/241 ・Sliding impact heads, i.e. impact heads sliding inside a rod or around a shaft

B25D 2250/245 ・Spatial arrangement of components of the tool relative to each other.

B25D 2250/255 ・Switches

B25D 2250/261 ・・Means for locking an operative switch on

B25D 2250/265 ・・Trigger mechanism in handle

B25D 2250/271 ・Tools for breaking windows

B25D 2250/275 ・Tools having at least two similar components

B25D 2250/281 ・・Double motors

B25D 2250/285 ・・Tools having three or more similar components, e.g. three motors

B25D 2250/291 ・・・Tools having three or more parallel bits, e.g. needle guns

B25D 2250/295 ・Tools used in automobiles or automobile manufacture

B25D 2250/301 ・Torque transmission means

B25D 2250/305 ・Twisted part of a chisel or percussive non-drilling tool bit

B25D 2250/311 ・Ultrasonic percussion means

B25D 2250/315 ・Use of adhesives

B25D 2250/321 ・Use of balls

B25D 2250/325 ・Use of bayonets

B25D 2250/331 ・Use of bearings

B25D 2250/335 ・・Supports therefor

B25D 2250/341 ・Use of external compressors

B25D 2250/345 ・Use of o-rings

B25D 2250/351 ・Use of pins

B25D 2250/355 ・Use of rolls

B25D 2250/361 ・Use of screws or threaded connections

B25D 2250/365 ・Use of seals

B25D 2250/371 ・Use of springs

B25D 2250/375 ・・Fluid springs

B25D 2250/381 ・・Leaf springs

B25D 2250/385 ・Use of thrust-washers, e.g. for limiting the course of the impulse member

B25D 2250/391 ・Use of weights; Weight properties of the tool