FR2147572A5 - - Google Patents
Info
- Publication number
- FR2147572A5 FR2147572A5 FR7222037A FR7222037A FR2147572A5 FR 2147572 A5 FR2147572 A5 FR 2147572A5 FR 7222037 A FR7222037 A FR 7222037A FR 7222037 A FR7222037 A FR 7222037A FR 2147572 A5 FR2147572 A5 FR 2147572A5
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/03—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with movement in two directions being obtained by two single-acting piston liquid engines, each acting in one direction
- F03C1/035—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with movement in two directions being obtained by two single-acting piston liquid engines, each acting in one direction one single-acting piston being always under the influence of the liquid under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S173/00—Tool driving or impacting
- Y10S173/04—Liquid operated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Percussive Tools And Related Accessories (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00165539A US3803983A (en) | 1971-07-23 | 1971-07-23 | Reciprocating hydraulic hammer |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2147572A5 true FR2147572A5 (de) | 1973-03-09 |
Family
ID=22599335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7222037A Expired FR2147572A5 (de) | 1971-07-23 | 1972-06-19 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3803983A (de) |
CA (1) | CA956542A (de) |
DE (2) | DE2235817A1 (de) |
FR (1) | FR2147572A5 (de) |
GB (2) | GB1362607A (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2369908A1 (fr) * | 1976-11-08 | 1978-06-02 | Montabert Roger | Appareil a percussions hydraulique |
SE7902872L (sv) * | 1979-03-30 | 1980-10-01 | Atlas Copco Ab | Pneumatisk slagmekanism |
US4402370A (en) * | 1981-05-15 | 1983-09-06 | Abraham Gein | Valveless pneumatic hammer |
US4560207A (en) * | 1984-03-01 | 1985-12-24 | Caterpillar Tractor Co. | Method and apparatus for fragmenting asphalt |
DE3690805C2 (de) * | 1986-11-20 | 1990-12-20 | Inst Gornogo Dela Sibirskogo O | Pneumatische Vorrichtung f}r einmalige Schl{ge |
FR2971029B1 (fr) * | 2011-01-31 | 2013-01-18 | Eurocopter France | Dispositif d'amortissement de trainee ameliore |
US10821308B1 (en) * | 2015-09-21 | 2020-11-03 | David Krumrei | Battering ram |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US384186A (en) * | 1888-06-05 | earth | ||
US2960067A (en) * | 1957-10-28 | 1960-11-15 | Inv S Man Corp | Single stroke air hammer |
US3322038A (en) * | 1964-04-09 | 1967-05-30 | Sperry Rand Corp | Hydraulic hammer |
US3351256A (en) * | 1965-10-05 | 1967-11-07 | Bostitch Inc | Fluid actuated driving apparatus |
GB1159465A (en) * | 1966-07-06 | 1969-07-23 | Hugo Cordes | Control for a Ramming Hammer with Hydraulic Drive |
DE1703061C3 (de) * | 1968-03-27 | 1974-02-14 | Fried. Krupp Gmbh, 4300 Essen | Hydraulisch betriebener Schubkolbenmotor |
-
1971
- 1971-07-23 US US00165539A patent/US3803983A/en not_active Expired - Lifetime
-
1972
- 1972-05-22 GB GB2395172A patent/GB1362607A/en not_active Expired
- 1972-05-22 GB GB5534472*A patent/GB1362608A/en not_active Expired
- 1972-06-08 CA CA144,271A patent/CA956542A/en not_active Expired
- 1972-06-19 FR FR7222037A patent/FR2147572A5/fr not_active Expired
- 1972-07-21 DE DE2235817A patent/DE2235817A1/de active Pending
- 1972-07-21 DE DE19727227134U patent/DE7227134U/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA956542A (en) | 1974-10-22 |
US3803983A (en) | 1974-04-16 |
DE7227134U (de) | 1973-05-24 |
DE2235817A1 (de) | 1973-02-01 |
GB1362607A (en) | 1974-08-07 |
GB1362608A (en) | 1974-08-07 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |