Patents
Sitemap › B25 - Hand tools; Portable power-driven tools; Handles for hand implements; Workshop equipment; Manipulators › B25D - Percussive tools › B25D 16 - Portable percussive machines with superimposed rotation
Patents for B25D 16 - Portable percussive machines with superimposed rotation (2,122)
08/1989
08/24/1989DE3804414A1 Hammer drill with ball catch clutch
08/09/1989EP0326783A2 Motor-driven hand tool
06/1989
06/07/1989EP0318480A1 Device for switching off percussion tools.
05/1989
05/02/1989US4825961 Drilling device
04/1989
04/06/1989DE3732288A1 Electropneumatic rotary percussion drill
04/04/1989US4817736 Pheumatic impact imparting tool
03/1989
03/30/1989DE3731244A1 Hand-held power tool
02/1989
02/22/1989EP0303651A1 Process for interrupting the operation of a hand tool, in particular percussion and/or rotation thereof.
01/1989
01/25/1989CN1030543A Hand controlling tools apparatus
01/17/1989US4798249 Lockable striking mechanism for hammer drill
01/17/1989CA1248782A1 Hammer drill with separate and interconnectable drive means
10/1988
10/27/1988DE3712456A1 Electropneumatically operating rotary percussion hammer drill
10/11/1988US4776406 Motor-driven hand tool for drilling or impact drilling operations
09/1988
09/22/1988WO1988006508A3 Process for interrupting the operation of a hand tool, in particular percussion and/or rotation thereof
09/15/1988DE3707052A1 Method for interrupting the drive activity, in particular rotary-drive activity, of a powered hand tool
09/15/1988DE3707051A1 Method for interrupting the drive activity, in particular at least the percussive-drive activity, of a powered hand tool
09/07/1988WO1988006508A2 Process for interrupting the operation of a hand tool, in particular percussion and/or rotation thereof
08/1988
08/30/1988US4766963 Hand-held hammer tool
08/16/1988US4763733 Hammer drill with rotational lock
06/1988
06/30/1988DE3722514A1 Hand-held device
06/22/1988EP0272209A2 Hand tool
06/14/1988US4750567 Rotary hammer driving mechanism
05/1988
05/26/1988DE3448189C2 Hammer drill
05/04/1988EP0266305A1 Drillhammer with percussion mechanism
04/1988
04/14/1988DE3634593A1 Hammer drill with an air-cushion percussive mechanism
04/12/1988CA1235003A1 Device for driving a drilling and/or impacting tool
03/1988
03/22/1988US4732219 Hammer drill with pneumatically driven percussion piston
03/22/1988US4732218 Hammer drill with separate and interconnectable drive means
03/22/1988US4732217 Hammer drill
03/02/1988EP0257174A2 Mechanism for blocking the drill spindle of a hand-held rotary percussion drill
02/1988
02/25/1988WO1988001219A1 Device for switching off percussion tools
02/25/1988DE3628716A1 Hammer drill with percussion mechanism
02/23/1988US4726430 Device for driving a drilling and/or impacting tool
02/18/1988DE3627869A1 Schlagwerkabschaltung Percussion shutdown
01/1988
01/19/1988US4719976 Hammer drill
01/14/1988DE3623648A1 Hammer drill with percussive mechanism
12/1987
12/23/1987DE3620710A1 Coupling element for a hand-guided electric tool
12/15/1987US4712625 Drilling and percussion hammer
12/08/1987US4711609 Drill tool
11/1987
11/26/1987DE3617347A1 Coupling element for a manually guided electronic tool
09/1987
09/29/1987CA1227385A1 Electropneumatic hammer drill
08/1987
08/20/1987DE3604506A1 Rotary percussive drive machine
06/1987
06/03/1987EP0224010A1 Portable power-actuated tool for drilling with or without percussion
06/02/1987US4669551 Electropneumatic hammer drill
05/1987
05/20/1987EP0222698A1 Drill hammer with an air-driven impacting piston
05/06/1987EP0221009A2 Drill hammer with rotation interruption
04/1987
04/23/1987DE3537254A1 Electropneumatic rotary percussion hammer drill for working rock, concrete and similar materials
04/14/1987US4657088 Rotary hammer driving mechanism
03/1987
03/10/1987US4648467 Pressure fluid operated percussion drilling machine provided with a rotation mechanism
02/1987
02/25/1987EP0211801A1 Drilling device
11/1986
11/12/1986EP0200844A1 Drill hammer
08/1986
08/06/1986EP0189769A1 Rotary or percussion drill
07/1986
07/22/1986US4601351 Electrically driven hammer machine
05/1986
05/27/1986CA1205165A1 Electrically driven hammer machine
05/06/1986CA1204004A1 Tool, particularly a boring tool
04/1986
04/29/1986CA1203793A1 Cylindrical guide member for an impacting mechanism in a hammer drill
03/1986
03/25/1986CA1202203A1 Hand-held hammer tool
02/1986
02/04/1986US4567950 Vibrating means in a power drill
12/1985
12/10/1985US4557338 Tool, particularly a boring tool
07/1985
07/16/1985US4529044 Electropneumatic hammer drill or chipping hammer
06/1985
06/19/1985EP0145070A2 Device for driving a drilling and/or impacting tool
04/1985
04/02/1985US4508180 Cylindrical guide member for an impacting mechanism in a hammer drill
03/1985
03/26/1985US4506743 Latching arrangement for power tools
01/1985
01/29/1985US4495791 Dent removing pneumatic puller
12/1984
12/04/1984USRE31755 Tool and chuck for hammer drill
07/1984
07/31/1984US4462467 Percussion drill machine
05/1984
05/08/1984US4446931 Power driven hammer drill
05/02/1984EP0107629A1 An electrically driven hammer machine
05/02/1984EP0107628A1 A hand-held hammer tool
04/1984
04/17/1984US4442906 Percussive drills
03/1984
03/13/1984US4436163 Arrangement for converting rotary motion to reciprocatory motion
02/1984
02/14/1984US4431062 Rotating drive for impact hammer
01/1984
01/31/1984US4428438 Percussive drill with safety interlock for reversing gear
01/11/1984EP0097879A2 Drilling machine
12/1983
12/21/1983EP0016771B1 Hand mechanical tool
09/1983
09/27/1983CA1154284A1 Electric drilling machine
01/1983
01/04/1983US4366869 Hammer drill
12/1982
12/28/1982US4365962 Safety clutch for power-operated hand-held tool
11/1982
11/30/1982CA1136446A1 Hammer drill
09/1982
09/14/1982US4349074 Convertible rotary impact hammer drill
08/1982
08/31/1982US4346769 Percussive tool drive linkage
08/31/1982US4346767 Rotary impact drill
06/1982
06/29/1982US4336847 Percussion drill
05/1982
05/26/1982EP0052507A1 Percussive drills
05/19/1982EP0051923A1 Portable power-operated drill
04/1982
04/28/1982EP0050192A1 Drill hammer
03/1982
03/31/1982EP0048482A1 Rotary percussive drill
12/1981
12/23/1981EP0042010A1 Power operated tool including a mechanism for converting rotary motion to reciprocatory motion
10/1981
10/20/1981CA1110935A1 Piston for a hammer drill having a separable part
08/1981
08/18/1981US4284148 Portable hammer drill with rotating tool
04/1981
04/14/1981CA1099134A1 Reversible hammer drill
02/1981
02/18/1981EP0023951A1 Motor driven hand tool, especially combination tool for home-workers
12/1980
12/02/1980US4236588 Hammer drill with a lockable tool holder
11/1980
11/25/1980CA1090216A1 Hammer drill with a lockable tool holder
11/25/1980CA1090169A1 Hammer tool
11/11/1980US4232749 Convertible rotary/percussion drill
10/1980
10/28/1980US4229981 Reversible hammer drill
10/15/1980EP0016771A1 Hand mechanical tool.
09/1980
09/23/1980US4223744 Reversing hammer drill
07/1980
07/29/1980CA1082496A1 Reversing hammer drill
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