US3730463A - Shock absorbing mountings for apparatus - Google Patents

Shock absorbing mountings for apparatus Download PDF

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Publication number
US3730463A
US3730463A US3730463DA US3730463A US 3730463 A US3730463 A US 3730463A US 3730463D A US3730463D A US 3730463DA US 3730463 A US3730463 A US 3730463A
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United States
Prior art keywords
ring
bearing
support plate
resilient
shock
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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 - Lifetime
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R Richard
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BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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BBC Brown Boveri France SA
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Priority to CH679170A priority Critical patent/CH515430A/en
Application filed by BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
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Publication of US3730463A publication Critical patent/US3730463A/en
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Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54Anti-seismic devices or installations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/3732Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00Purpose; Design features
    • F16F2230/0047Measuring, indicating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2236/00Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/12Mode of stressing of basic spring or damper elements or devices incorporating such elements loaded in combined stresses
    • F16F2236/123Mode of stressing of basic spring or damper elements or devices incorporating such elements loaded in combined stresses loaded in compression and shear
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • H02B5/06Non-enclosed substations; Substations with enclosed and non-enclosed equipment gas-insulated

Abstract

A damping arrangement for preventing mechanical shocks from being transmitted to the supporting foot portions of apparatus mounted on a foundation located at any area of the earth''s surface susceptible to earthquakes includes a two-part resilient mounting. The lower part of the mounting is rigidly fixed to the foundation and the upper part, to which the foot portion of the apparatus is attached, is connected with the lower part by means of a self-centering annular rubber body and a support plate which is guided for movement in any horizontal direction on the lower part by means of a low-friction type bearing placed therebetween in the form of a floating ring-shaped ball bearing retainer.

Description

United States Patent 1191 Richard [54] SHOCK ABSORBING MOUNTINGS FOR APPARATUS [75] Inventor: Robert Richard, Zurich, Switzerland [73] Assignee: Aktiengesellschaft Brown, Boveri &
Cie, Baden, Switzerland 22 Filed: Apr. 20,1971
21 Appl. N0.: 135,664
[30] Foreign Application Priority Data May 6, 1970 Switzerland ..6791/70 [56] References Cited UNITED STATES PATENTS 3,263,954 8/1966 Baratoff ..248/358 R 3,638,377 2/1972 Caspe ..152/167 3,146,979
9/1964 Keetch ..248/24X [4 1 May 1, 1973 2,014,643 9/1935 Bakker ..52/167 X FOREIGN PATENTS OR APPLICATIONS 826,879 l/1960 Great Britain ..248/358 R I Primary ExaminerJ. Franklin Foss Attorney-Pierce, Scheffler & Parker [5 7] ABSTRACT A damping arrangement for preventing mechanical shocks from being transmitted to the supporting foot portions of apparatus mounted on a foundation located at any area of the earths surface susceptible to earthquakes includes a two-part resilient mounting. The lower part of the mounting is rigidly fixed to the foundation and the upper part, to which the foot portion of the apparatus is attached, is connected with the lower part by means of a self-centering annular rubber body and a support plate which is guided for movement in any horizontal direction on the lower part by of v a low-friction type bearing placed therebetween in the form of a floating ring-shaped ball bearing retainer.
3 Claims, 4 Drawing Figures PATENTEB 11m 3,730,463
sum 1 BF 3 Fig. 1
PATENTEDHAY Hm 3,730,463
SHEET 2 BF 3 Fig.2b
PATENTEDHAY Hm 3,730,463
SHEET 3 OF 3 Fig. 3
SHOCK ABSORBING MOUNTINGS F OR APPARATUS The present invention relates to an improved damping arrangement for preventing mechanical shock movements of apparatus, which is adapted to be introduced between a foundation connected with the earth and a foot portion of the apparatus such as a machine or the like and particularly for switching apparatus that is to be mounted in locations which are susceptible to earthquakes. For the installation in earthquake susceptible areas of switching apparatus provided with pillar type insulators resiliently mounted on a foundation, it is known from Swiss Pat. No. 430,823 to provide, between the lower end of the pillar insulator and the base, an insert having two flanges between which are arranged spring elements in an asymmetrical manner. By means of such an arrangement the pillars cannot be dangerously deflected at their upper ends but are capable of oscillating to some extent about their center of gravity.
The primary object of this invention is to obviate these oscillations and prevent horizontal shock stresses from whatever direction such as occur, for example, with earth tremors from being transmitted to the apparatus. In accordance with the invention, this result is achieved in that in the lower part of the damping arrangement that is connected to the foundation, is guided the upper part connected to the foot of the apparatus, the guiding arrangement including a low-friction type bearing placed between the upper and lower parts in the form of a preferably floating ring-shaped ball bearing retainer which supports the weight of the upper part on the lower part and which permits horizontal movement of the upper part in any direction, and that a self-centering annular damping element is arranged between the lower and upper parts to restore the upper part to its initial position after the shock force terminates.
The foregoing, as well as other objects and advantages inherent in the invention will become more evident from the following detailed description of one suitable embodiment of the invention and from the accompanying drawings wherein:
FIG. 1 shows the damping arrangement in sectional elevation;
FIGS. 2a and 2b illustrate diagrammatically two different characteristic positions of the damping arrangement of FIG.1; and
FIG. 3 illustrates the damping arrangement installed in an electric switch of the compressed gas type.
With reference now to FIG. 1, the damping arrangement is designated in general by the reference numeral 1. It comprises a lower part designated generally by numeral 2. The lower part 2 is formed in two half sections 2a, 2b which are rigidly interconnected by means of screws 3. The lower part 2 is also provided with attachment holes, not illustrated, for connection with the foundation. Furthermore, the lower sections 2a, 2b are so constructed that they define a recess 4 in which is located an annular support plate 5 which is connected by means of a screw 7 to the central hub portion 6a of an inverted cup-shaped upper part 6 which is connected with the foot portion 9 of the apparatus which is not depicted in further detail in this view and is designated by a chain dot line. The connection between the foot portion 9 and the inverted cup-shaped upper part 6 is established by means of a bolt 8 which is threaded and a nut. A low friction bearing in the form of a ring-shaped ball bearing retainer 10 is provided at the upper and also. the lower side of the annular plate 5, one side of each race being in rolling contact with the corresponding side of the plate 5 and the other side being in contact with a stationary flat bearing ring 11. The bearing rings 11 are inserted into the sections 2a, 2b with the interposition of elastic rings 12 which are themselves located, in a resiliently stressed condition, in corresponding grooves in the sections 2a, 2b and provide for continuous contact of plate 5 with the balls of the ball retainers 10. It will be noted from FIG. 1 that the ball retainers 10 are seated in stepped portions 4a of the recesses 4, these stepped portions having a diameter somewhat larger than that of the ball retainers 10 so as to permit the latter to float, i.e. to have a limited degree of movement in any horizontal direction within the confines of the recessed portions 4a in which they are seated, along with movement of the upper part 6 in the event that shock forces occur. Maximum horizontal displacement of plate 5 is determined by the diameter of the recess 4 in relation to that of the plate 5.
The centering damping element 13, 13a is located between the cup-shaped upper part 6 and the lower section part 2b. Element 13 is constituted by an annular rubber body to the end surfaces of which are connected, e.g. by vulcanization, metallic limit rings 13a. The section 2a is provided with a central bore which is sealed by an insert 14. The ends of the clamping member 13, are secured to the lower section part 2b and the upper part 6.
With reference now to FIGS. 2a and 2b, corresponding parts have been given the same reference numerals as in FIG. 1. FIG.2a shows the normal relative self-centering position of the upper part 6 on the lower part 2 in the absence of any external forces. Should there occur however, for example, as indicated by the arrow 15, a horizontal movement of the earth,as a result of earth tremors, which is transmitted through the foundation to the part 2 connected therewith, then the position shown in FIG. 2b will result. It is assumed that a maximum deflection a has occurred between the central axes of the lower and upper parts 2 and 6. The rubber body 13 can deform and, as a result of the rolling friction between the parts 2 and 6 in any horizontal direction, accompanied by some horizontal displacement of the floating ball bearing retainer rings 10 in the same direction as depicted in FIG. 2b, practically no force is transmitted from the foundation to the apparatus, i.e. to the apparatus foot 9. Once the external force has ceased, the apparatus is returned automatically to the normal centralized rest position shown in FIG. 2a, by the restoring force built up in the self-centering resilient damping element 13 as the movement occurred. Any movement of the upper part 1 in a vertically upward direction on the lower part 2 is prevented by the presence of the upper bearing ball ring 10 which is in constant engagement between the upper side of support plate 5 and the upper bearing ring 1 1.
FIG. 3 illustrates an application of the damping arrangemen't l in the support of a compressed gas switch 16 which is provided with foot portion that are connected to the foundation 17, by means of the damping arrangement in accordance with FIG. 1.
The improved shock-absorbing support can also be employed to advantage for protecting machine apparatus from other types of stresses, for example, those resulting from high winds, towing forces and other shocks. By appropriately dimensioning the centering damping element 13, the latter can easily be adapted to the stress and the weight of the apparatus.
I claim:
1. In a shock absorbing mount for absorbing horizontally directed shock forces in any direction and particularly those resulting from earthquakes, the combination comprising an upper part to which is adapted to be secured the apparatus to be protected against the shock forces, said upper part including a depending hub portion terminating in a circular support plate, and a lower part adapted to be secured to the ground, said lower part being constituted by upper and lower sections joined together and providing a circular recess into which said support plate extends, said recess including an upper bearing ring seated in said upper section and a lower bearing ring seated in said lower section, an upper ring of bearing balls disposed between said upper bearing ring and the upper side of said support plate, a lower ring of bearing balls disposed between said lower bearing ring and the under side of said support plate,
said upper and lower rings of bearing balls serving to prevent any displacement of said support plate in a vertical direction and also providing a low-friction bearing enabling horizontal movement of said lower part in any direction in response to earth shocks while said upper part remains virtually motionless, and an annular member of resilient material surrounding said hub portion of said upper part in radial spaced relation thereto, the upper and lower ends of said resilient annular member being respectively secured to said upper and lower parts thereby to provide a self-centerin g action of said upper part on said lower part after said shock forces terminate.
2. A shock absorbing mount as defined in claim 1 wherein each said bearing ring has associated therewith a resilient ring seated in a groove in said recess provided in said lower part, and each said resilient ring contacts the face of said bearing ring opposite to that which contacts the appertaining ring of bearing balls.
3. A shock absorbing mount as defined in claim 1 wherein each said ring of bearing balls is located in a portion of said circular recess having a larger diameter than the ball ring thereby enable relative transverse movement as between said ball ring and said lower part.

Claims (3)

1. In a shock absorbing mount for absorbing horizontally directed shock forces in any direction and particularly those resulting from earthquakes, the combination comprising an upper part to which is adapted to be secured the apparatus to be protected against the shock forces, said upper part including a depending hub portion terminating in a circular support plate, and a lower part adapted to be secured to the ground, said lower part being constituted by upper and lower sections joined together and providing a circular recess into which said support plate extends, said recess including an upper bearing ring seated in said upper section and a lower bearing ring seated in said lower section, an upper ring of bearing balls disposed between said upper bearing ring and the upper side of said support plate, a lower ring of bearing balls disposed between said lower bearing ring and the under side of said support plate, said upper and lower rings of bearing balls serving to prevent any displacement of said support plate in a vertical direction and also providing a low-friction bearing enabling horizontal movement of said lower part in any direction in response to earth shocks while said upper part remains virtually motionless, and an annular member of resilient material surrounding said hub portion of said upper part in radial spaced relation thereto, the upper and lower ends of said resilient annular member being respectively secured to said upper and lower parts thereby to provide a self-centering action of said upper part on said lower part after said shock forces terminate.
2. A shock absorbing mount as defined in claim 1 wherein each said bearing ring has associated therewith a resilient ring seated in a groove in said recess provided in said lower part, and each said resilient ring contacts the face of said bearing ring opposite to that which contacts the appertaining ring of bearing balls.
3. A shock absorbing mount as defined in claim 1 wherein each said ring of bearing balls is located in a portion of said circular recess having a larger diameter than the ball ring thereby enable relative transverse movement as between said ball ring and said lower part.
US3730463D 1970-05-06 1971-04-20 Shock absorbing mountings for apparatus Expired - Lifetime US3730463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH679170A CH515430A (en) 1970-05-06 1970-05-06 Device for installation between a foundation connected to the earth and the base part of a device to keep mechanical shock movements away from the device

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US3730463A true US3730463A (en) 1973-05-01

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US (1) US3730463A (en)
JP (1) JPS5323467B1 (en)
BR (1) BR7102675D0 (en)
CA (1) CA925112A (en)
CH (1) CH515430A (en)
DE (2) DE7029944U (en)
GB (1) GB1285006A (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789174A (en) * 1973-03-07 1974-01-29 Gen Electric Earthquake-protective support system for electrical apparatus
US4101102A (en) * 1976-04-26 1978-07-18 Westinghouse Electric Corp. Vibration isolation load support apparatus
FR2392487A1 (en) * 1977-05-24 1978-12-22 Sprecher & Schuh Ag EARTHQUAKE RESISTANT CIRCUIT BREAKER
US4133720A (en) * 1976-10-22 1979-01-09 Dr. C. Otto & Comp. G.M.B.H. Support apparatus for a battery of underjet coke ovens
US4152087A (en) * 1976-10-11 1979-05-01 Compagnie Generale pour les Developments Richesses Sous-Marines "C.G. Doris" Marine platform designed to withstand seismic shocks
US4200256A (en) * 1977-03-14 1980-04-29 Westinghouse Electric Corp. Apparatus mounting arrangement for avoiding harm due to seismic shocks
FR2456885A1 (en) * 1979-02-16 1980-12-12 Alsthom Cgee ANISISMIC PROTECTION DEVICE
EP0045651A2 (en) * 1980-08-04 1982-02-10 Conoco Phillips Company Apparatus and method for supporting a tubular riser
US4534535A (en) * 1981-10-02 1985-08-13 Jgc Corporation Damping support for piping system
US4632356A (en) * 1984-04-19 1986-12-30 Erich Munz Vertically adjustable shock-absorbing mounting device
US4726161A (en) * 1987-02-26 1988-02-23 Yaghoubian Nejde F Earthquake isolating support
US5131621A (en) * 1991-06-18 1992-07-21 American Gage And Machine Company Universal hold-down assembly for pump assemblies and the like
US5310156A (en) * 1991-10-03 1994-05-10 Fujitsu Limited Earthquake-proof leg support structure of electronic apparatus
US5435517A (en) * 1993-08-12 1995-07-25 Kollmorgen Corporation Swing arm bracket assembly
US5970666A (en) * 1996-12-11 1999-10-26 Mitsubishi Steel Mfg. Co., Ltd Large-scale high strength seismic isolator
US6115972A (en) * 1996-04-09 2000-09-12 Tamez; Federico Garza Structure stabilization system
US6533256B1 (en) * 2000-06-23 2003-03-18 Foster-Miller, Inc. High precision vibration damping system
US20030155480A1 (en) * 2002-02-18 2003-08-21 Andrzej Cholinski Support of a drive unit for a lift
US20060005477A1 (en) * 2002-08-06 2006-01-12 Hong Yang Earthquake resistance structure for building
US20060202398A1 (en) * 2005-03-11 2006-09-14 Enidine, Inc. Multi-axial base isolation system
US20070069103A1 (en) * 2003-10-30 2007-03-29 Marco Ferrari Isolator/dissipator for interfacing between the ground and supporting structures
WO2009102833A2 (en) * 2008-02-12 2009-08-20 True Gravity Enterprises, Inc. Vibration isolation and damping system
WO2010093337A1 (en) 2009-02-16 2010-08-19 Murat Dicleli Multi-directional torsional hysteretic damper (mthd)
CN104968985A (en) * 2013-02-15 2015-10-07 Ngi股份公司 Machine foot and use of the latter
US20170241151A1 (en) * 2014-07-06 2017-08-24 Adnan Dogan Earthquake isolator
US9840842B2 (en) 2015-05-04 2017-12-12 Willis Construction Company, Inc Apparatus and methods of precast architectural panel connections
US10197214B2 (en) 2013-11-05 2019-02-05 Onguard Group Limited Securing assembly
EP3707322A4 (en) * 2018-02-09 2021-03-17 Murat Dicleli Multidirectional adaptive re-centering torsion isolator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749654C2 (en) * 1977-11-05 1984-06-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De
DE3139956C2 (en) * 1981-10-08 1988-02-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De
GB2162953A (en) * 1984-08-10 1986-02-12 Plint & Partners Ltd Apparatus for high frequency frictional measurements

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014643A (en) * 1933-08-31 1935-09-17 Jacob F J Bakker Balance block for buildings
GB826879A (en) * 1957-01-14 1960-01-27 Aro Equipment Corp Vibration absorber
US3146979A (en) * 1961-07-24 1964-09-01 Robinson Technical Products In Shock and vibration isolator for machinery and the like
US3263954A (en) * 1963-11-15 1966-08-02 Korfund Dynamics Corp All-directional shock mount
US3638377A (en) * 1969-12-03 1972-02-01 Marc S Caspe Earthquake-resistant multistory structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014643A (en) * 1933-08-31 1935-09-17 Jacob F J Bakker Balance block for buildings
GB826879A (en) * 1957-01-14 1960-01-27 Aro Equipment Corp Vibration absorber
US3146979A (en) * 1961-07-24 1964-09-01 Robinson Technical Products In Shock and vibration isolator for machinery and the like
US3263954A (en) * 1963-11-15 1966-08-02 Korfund Dynamics Corp All-directional shock mount
US3638377A (en) * 1969-12-03 1972-02-01 Marc S Caspe Earthquake-resistant multistory structure

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789174A (en) * 1973-03-07 1974-01-29 Gen Electric Earthquake-protective support system for electrical apparatus
US4101102A (en) * 1976-04-26 1978-07-18 Westinghouse Electric Corp. Vibration isolation load support apparatus
US4152087A (en) * 1976-10-11 1979-05-01 Compagnie Generale pour les Developments Richesses Sous-Marines "C.G. Doris" Marine platform designed to withstand seismic shocks
US4133720A (en) * 1976-10-22 1979-01-09 Dr. C. Otto & Comp. G.M.B.H. Support apparatus for a battery of underjet coke ovens
US4200256A (en) * 1977-03-14 1980-04-29 Westinghouse Electric Corp. Apparatus mounting arrangement for avoiding harm due to seismic shocks
FR2392487A1 (en) * 1977-05-24 1978-12-22 Sprecher & Schuh Ag EARTHQUAKE RESISTANT CIRCUIT BREAKER
FR2456885A1 (en) * 1979-02-16 1980-12-12 Alsthom Cgee ANISISMIC PROTECTION DEVICE
US4330103A (en) * 1979-02-16 1982-05-18 Delle-Alsthom Earthquake protector
EP0045651A2 (en) * 1980-08-04 1982-02-10 Conoco Phillips Company Apparatus and method for supporting a tubular riser
EP0045651A3 (en) * 1980-08-04 1983-03-09 Conoco Inc. Well support apparatus
US4534535A (en) * 1981-10-02 1985-08-13 Jgc Corporation Damping support for piping system
US4632356A (en) * 1984-04-19 1986-12-30 Erich Munz Vertically adjustable shock-absorbing mounting device
US4726161A (en) * 1987-02-26 1988-02-23 Yaghoubian Nejde F Earthquake isolating support
US5131621A (en) * 1991-06-18 1992-07-21 American Gage And Machine Company Universal hold-down assembly for pump assemblies and the like
US5310156A (en) * 1991-10-03 1994-05-10 Fujitsu Limited Earthquake-proof leg support structure of electronic apparatus
US5435517A (en) * 1993-08-12 1995-07-25 Kollmorgen Corporation Swing arm bracket assembly
US6115972A (en) * 1996-04-09 2000-09-12 Tamez; Federico Garza Structure stabilization system
US5970666A (en) * 1996-12-11 1999-10-26 Mitsubishi Steel Mfg. Co., Ltd Large-scale high strength seismic isolator
US6533256B1 (en) * 2000-06-23 2003-03-18 Foster-Miller, Inc. High precision vibration damping system
US20030155480A1 (en) * 2002-02-18 2003-08-21 Andrzej Cholinski Support of a drive unit for a lift
US6729597B2 (en) * 2002-02-18 2004-05-04 Inventio Ag Support of a drive unit for a lift
US7540117B2 (en) * 2002-08-06 2009-06-02 Hong Yang Vibration isolation system for building
US20060005477A1 (en) * 2002-08-06 2006-01-12 Hong Yang Earthquake resistance structure for building
US20070069103A1 (en) * 2003-10-30 2007-03-29 Marco Ferrari Isolator/dissipator for interfacing between the ground and supporting structures
US7325792B2 (en) * 2005-03-11 2008-02-05 Enidine, Inc. Multi-axial base isolation system
US20060202398A1 (en) * 2005-03-11 2006-09-14 Enidine, Inc. Multi-axial base isolation system
WO2009102833A3 (en) * 2008-02-12 2010-01-14 True Gravity Enterprises, Inc. Vibration isolation and damping system
WO2009102833A2 (en) * 2008-02-12 2009-08-20 True Gravity Enterprises, Inc. Vibration isolation and damping system
CN102317548B (en) * 2009-02-16 2014-07-02 马拉特·迪戈里 Multi-directional torsional hysteretic damper (MTHD)
WO2010093337A1 (en) 2009-02-16 2010-08-19 Murat Dicleli Multi-directional torsional hysteretic damper (mthd)
EA021188B1 (en) * 2009-02-16 2015-04-30 Диклели, Мурат Multi-directional torsional hysteretic damper
CN104968985B (en) * 2013-02-15 2017-02-22 Ngi股份公司 Machine foot and use of the latter
CN104968985A (en) * 2013-02-15 2015-10-07 Ngi股份公司 Machine foot and use of the latter
US9347600B2 (en) * 2013-02-15 2016-05-24 Ngi A/S Machine foot
US10197214B2 (en) 2013-11-05 2019-02-05 Onguard Group Limited Securing assembly
US20170241151A1 (en) * 2014-07-06 2017-08-24 Adnan Dogan Earthquake isolator
US10125510B2 (en) * 2014-07-06 2018-11-13 Adnan Dogan Earthquake isolator
US9840842B2 (en) 2015-05-04 2017-12-12 Willis Construction Company, Inc Apparatus and methods of precast architectural panel connections
US10151108B2 (en) 2015-05-04 2018-12-11 Willis Construction Company System, apparatus and methods for precast architectural panel connections
US10900226B1 (en) 2015-05-04 2021-01-26 Willis Construction Company System, apparatus and methods for precast architectural panel connections
US10087625B2 (en) 2015-05-04 2018-10-02 Willis Construction Company System, apparatus and methods for precast architectural panel connections
EP3707322A4 (en) * 2018-02-09 2021-03-17 Murat Dicleli Multidirectional adaptive re-centering torsion isolator

Also Published As

Publication number Publication date
BR7102675D0 (en) 1973-04-17
CH515430A (en) 1971-11-15
CA925112A1 (en)
GB1285006A (en) 1972-08-09
JPS5323467B1 (en) 1978-07-14
CA925112A (en) 1973-04-24
DE7029944U (en) 1972-03-16
DE2039567A1 (en) 1971-11-25

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