IT7920207A0 - Dispositivo di demolizione ad urto ripetuto motorizzato idraulicamente. - Google Patents

Dispositivo di demolizione ad urto ripetuto motorizzato idraulicamente.

Info

Publication number: IT7920207A0
Authority: IT; Italy
Prior art keywords: repeated impact; demolition device; motorized; hydraulic; hydraulic motorized
Prior art date: 1978-02-21

Application number

IT7920207A

Other languages

English (en)

Other versions

IT1111126B (it

Original Assignee

Edgard J Justus

Priority date (The priority date 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 date listed.)

1978-02-21

Filing date

1979-02-15

Publication date

1979-02-15

1979-02-15 Application filed by Edgard J Justus filed Critical Edgard J Justus

1979-02-15 Publication of IT7920207A0 publication Critical patent/IT7920207A0/it

1986-01-13 Application granted granted Critical

1986-01-13 Publication of IT1111126B publication Critical patent/IT1111126B/it

Links

Classifications

- 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
- B25D9/14—Control devices for the reciprocating piston
- B25D9/16—Valve arrangements therefor
- B25D9/20—Valve arrangements therefor involving a tubular-type slide valve
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
- 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
- B25D9/14—Control devices for the reciprocating piston
- B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2209/00—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D2209/005—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously having a tubular-slide valve, which is coaxial with the piston
- 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)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Percussive Tools And Related Accessories (AREA)
Safety Valves (AREA)

IT20207/79A 1978-02-21 1979-02-15 Dispositivo di demolizione ad urto ripetuto motorizzato IT1111126B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/879,216 US4231434A (en)	1978-02-21	1978-02-21	Hydraulic impact device

Publications (2)

Publication Number	Publication Date
IT7920207A0 true IT7920207A0 (it)	1979-02-15
IT1111126B IT1111126B (it)	1986-01-13

Family

ID=25373665

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT20207/79A IT1111126B (it)	1978-02-21	1979-02-15	Dispositivo di demolizione ad urto ripetuto motorizzato

Country Status (5)

Country	Link
US (1)	US4231434A (it)
CA (1)	CA1092941A (it)
GB (1)	GB2014651B (it)
IT (1)	IT1111126B (it)
ZA (1)	ZA79479B (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2484316A1 (fr) *	1980-05-07	1981-12-18	Inst Mekhanizirovannogo	Machine pneumatique a percussion comportant un dispositif d'amortissement de contrecoup
US4474248A (en) *	1981-04-23	1984-10-02	Giovanni Donadio	Hydraulic demolishing rock drill
US4479551A (en) *	1981-11-27	1984-10-30	Hughes Tool Company	Actuator for a hydraulic impact device
EP0085279B1 (en) *	1982-01-22	1986-07-09	Mauro Vitulano	Directional control valve to obtain in a hydraulic appliance the alternative motion of a piston operating to charge and fire a tool, specially suitable for hydraulic hammers
GB2115886B (en) *	1982-03-02	1985-08-29	Dobson Park Ind Public Limited	Impact tools
CH661239A5 (de) *	1983-12-01	1987-07-15	Karpf Medizintechnik Ag	Pneumatisches schlagwerkzeug.
US4745981A (en) *	1985-07-30	1988-05-24	Consolidated Technologies Corp.	Hydraulic impact tool
US4724911A (en) *	1985-12-20	1988-02-16	Enmark Corporation	Hydraulic impact tool
SE501200C2 (sv) *	1989-10-28	1994-12-05	Berema Atlas Copco Ab	Slagverktyg
DE4028595A1 (de) *	1990-09-08	1992-03-12	Krupp Maschinentechnik	Hydraulisch betriebenes schlagwerk
AU728034B2 (en) *	1995-06-30	2001-01-04	Allan James Yeomans	Fluid ram assembly
US5893419A (en) *	1997-01-08	1999-04-13	Fm Industries, Inc.	Hydraulic impact tool
KR100260308B1 (ko) *	1997-06-11	2000-07-01	최해성	개선된 실링을 갖는 유압헤머
AUPR430201A0 (en) *	2001-04-09	2001-05-17	Russell Mineral Equipment Pty Ltd	Linerbolt removing tool
EP1697089B1 (en) *	2003-12-19	2007-11-14	Clark Equipment Company	Impact tool
SE527674C2 (sv) *	2004-10-27	2006-05-09	Atlas Copco Rock Drills Ab	Borraggregat och metod för att styra en fläkt i detsamma
SE530617C2 (sv) *	2006-10-25	2008-07-15	Atlas Copco Constr Tools Ab	Hydrauliskt slagverk
USD643049S1 (en) *	2010-12-14	2011-08-09	Caterpillar Inc.	Rock claw for demolition hammer
US9592598B2 (en) *	2013-03-15	2017-03-14	Caterpillar Inc.	Hydraulic hammer having impact system subassembly
US20160288306A1 (en) *	2015-04-06	2016-10-06	Caterpillar Inc.	Hydraulic hammer having self-contained gas spring
US10391959B1 (en)	2017-10-31	2019-08-27	Brad Hathorn	Selectively deployable school bus bumper
US11700784B1 (en)	2019-05-15	2023-07-18	Roger Pion	Soil conditioner injection systems and methods of using the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3664435A (en) *	1970-11-09	1972-05-23	Worthington Corp Worthington C	Hydraulic hammer with automatic stopping action
US3908373A (en) *	1970-11-23	1975-09-30	Foster Miller Ass	High energy rate actuator
US3687008A (en) *	1971-02-01	1972-08-29	W J Savage Co Inc	Pressure fluid controlled reciprocating mechanism
US3766830A (en) *	1971-03-24	1973-10-23	Montabert Roger	Percussion apparatus
US3887019A (en) *	1971-05-11	1975-06-03	Af Hydraulics	Hydraulic percussive implement
US3827507A (en) *	1972-09-18	1974-08-06	Technology Inc Const	Hydraulically powered demolition device
US3866690A (en) *	1972-09-25	1975-02-18	Technology Inc Const	Hydraulically powered impact device
US3925985A (en) *	1973-01-09	1975-12-16	Rapidex Inc	Impact actuator
US4018135A (en) *	1973-12-26	1977-04-19	Construction Technology, Inc.	Hydraulically powered impact device

1978
- 1978-02-21 US US05/879,216 patent/US4231434A/en not_active Expired - Lifetime
1979
- 1979-01-18 CA CA319,864A patent/CA1092941A/en not_active Expired
- 1979-02-01 GB GB7903622A patent/GB2014651B/en not_active Expired
- 1979-02-05 ZA ZA79479A patent/ZA79479B/xx unknown
- 1979-02-15 IT IT20207/79A patent/IT1111126B/it active

Also Published As

Publication number	Publication date
CA1092941A (en)	1981-01-06
IT1111126B (it)	1986-01-13
ZA79479B (en)	1980-07-30
GB2014651B (en)	1982-04-21
US4231434A (en)	1980-11-04
GB2014651A (en)	1979-08-30

Publication	Publication Date	Title
IT7920207A0 (it)	1979-02-15	Dispositivo di demolizione ad urto ripetuto motorizzato idraulicamente.
NL7900145A (nl)	1979-08-27	Slaggereedschap.
IT7919403A0 (it)	1979-01-18	Chiave idraulica.
NL187147B (nl)	1991-01-16	Hamermolen.
FI792066A7 (fi)	1980-12-30	Hydraulisk slagmaskin
FI792591A7 (fi)	1981-01-01	Parannus hydrauliseen iskukoneeseen.
ES241579Y (es)	1980-04-16	Una unidad de pavimento.
FI793232A7 (fi)	1981-01-01	Hydraulikäyttöinen iskumekanismi.
NL178228C (nl)	1986-02-17	Hamermolen.
IT8119722A0 (it)	1981-02-13	Dispositivo idraulico di sterzatura.
IT7920468A0 (it)	1979-02-23	Dispositivo di comando idraulico.
IT8022978A0 (it)	1980-06-24	Apparato idraulico di percussione.
IT7822449A0 (it)	1978-04-19	Dispositivo di comando ad azionamento idraulico.
NO784313L (no)	1980-05-09	Toveis forsterker.
IT7921373A0 (it)	1979-03-28	Meccanismo di servosterzo idraulico.
FI793498A7 (fi)	1981-01-01	Hydraulinen kone.
NL7804172A (nl)	1979-10-23	Heiinrichting.
IT1136863B (it)	1986-09-03	Dispositivo di lavoro idraulico
ATE17670T1 (de)	1986-02-15	Hydraulisches schlagantrieb.
ATE10171T1 (de)	1984-11-15	Hydraulische schlagvorrichtung.
FI803623A7 (fi)	1980-11-20	Purkutaltta.
IT1108630B (it)	1985-12-09	Martello demolitore o simile ad azionamento idraulico
IT7922079A0 (it)	1979-04-23	Mulino ad urto.
IT7821232V0 (it)	1978-03-22	Utensile azionato idraulicamente.
IT1072179B (it)	1985-04-10	Martello demolitore oleodinamico perfezionato