FR2345712A1 - Indicateur de contrainte - Google Patents

Indicateur de contrainte

Info

Publication number
FR2345712A1
FR2345712A1 FR7625492A FR7625492A FR2345712A1 FR 2345712 A1 FR2345712 A1 FR 2345712A1 FR 7625492 A FR7625492 A FR 7625492A FR 7625492 A FR7625492 A FR 7625492A FR 2345712 A1 FR2345712 A1 FR 2345712A1
Authority
FR
France
Prior art keywords
stress indicator
indicator
stress
Prior art date
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.)
Withdrawn
Application number
FR7625492A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MODULUS CORP
Original Assignee
MODULUS CORP
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.)
Filing date
Publication date
Application filed by MODULUS CORP filed Critical MODULUS CORP
Publication of FR2345712A1 publication Critical patent/FR2345712A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/025—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load with a gauge pin in a longitudinal bore in the body of the bolt
    • 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
    • Y10S116/00—Signals and indicators
    • Y10S116/34—Tension indicating

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
FR7625492A 1976-03-22 1976-08-23 Indicateur de contrainte Withdrawn FR2345712A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/669,247 US4041776A (en) 1976-03-22 1976-03-22 Strain indicator

Publications (1)

Publication Number Publication Date
FR2345712A1 true FR2345712A1 (fr) 1977-10-21

Family

ID=24685653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625492A Withdrawn FR2345712A1 (fr) 1976-03-22 1976-08-23 Indicateur de contrainte

Country Status (7)

Country Link
US (1) US4041776A (fr)
JP (1) JPS52115247A (fr)
DE (1) DE2636522A1 (fr)
FR (1) FR2345712A1 (fr)
GB (1) GB1555572A (fr)
NL (1) NL7610311A (fr)
SE (1) SE7608623L (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217849A (en) * 1978-12-21 1980-08-19 Brown Larry L Mine roof warning indicator
US4709654A (en) * 1986-08-15 1987-12-01 Smith Stanley R Indicator for loose lug nuts
US5291789A (en) * 1987-11-10 1994-03-08 Rotabolt Limited Load indicating
DE9002936U1 (de) * 1990-03-15 1990-10-11 Otto Ganter & Co KG Normteile zum Bedienen und Spannen, 7743 Furtwangen Federbelasteter Druckbolzen mit Kraftanzeige
US5102273A (en) * 1991-02-25 1992-04-07 Allied-Signal Inc. Visually indicated preloaded bolt
GB9408536D0 (en) * 1994-04-29 1994-06-22 Rollstud Ltd Strain indicator
US6101884A (en) * 1997-04-10 2000-08-15 Mcdonnell Douglas Corporation Fastener equipped with an untethered fiber-optic strain gauge and related method of using the same
US5885040A (en) * 1997-06-27 1999-03-23 Mcdonnell Douglas Corporation Tie-down with strap and strap tension indicator
DE10217283B4 (de) * 2002-04-12 2005-10-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Einstellen und Prüfen der Spannkraft von Schraubverbindungen
GB0400324D0 (en) * 2004-01-08 2004-02-11 Thomson Ian R Railway inspection and maintenance system
US7973671B2 (en) * 2004-05-19 2011-07-05 Vibrosystm Inc. Shear component breakage detection
US8087860B1 (en) 2008-06-06 2012-01-03 T & N Products, LLC Self-indicating lug nut
US10450174B1 (en) 2014-10-07 2019-10-22 Jergens, Inc. Hoisting device and bolt for use therewith, method of making and using the same
AU2017268037B2 (en) * 2016-05-18 2023-02-02 Integrity Engineering Solutions Pty Ltd A load indicating fastener
JP6752836B2 (ja) * 2018-02-02 2020-09-09 本田技研工業株式会社 締結用ねじ及び締結用ねじの締付け管理方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747454A (en) * 1952-01-18 1956-05-29 Charles F Bowersett Bolt with frangible, ejectable tension indicating means
GB928379A (en) * 1960-01-14 1963-06-12 Holo Krome Screw Corp Apparatus for tensioning threaded members
DE1926936A1 (de) * 1968-05-28 1970-09-10 Internat Engineering Concessio Zugkoerper
FR2104554A5 (fr) * 1970-08-19 1972-04-14 Int Engineering
FR2167015A5 (fr) * 1971-12-13 1973-08-17 Modulus Corp
US3987699A (en) * 1974-11-14 1976-10-26 Popenoe Charles H Opti-mechanical displacement microindicator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602186A (en) * 1970-08-06 1971-08-31 Charles H Popenoe Opti-mechanical stress-strain indicator
US3886840A (en) * 1972-10-24 1975-06-03 Kaman Aerospace Corp Bolt head which measures and maintains preload
US3908508A (en) * 1974-09-23 1975-09-30 Modulus Corp Strain indicator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747454A (en) * 1952-01-18 1956-05-29 Charles F Bowersett Bolt with frangible, ejectable tension indicating means
GB928379A (en) * 1960-01-14 1963-06-12 Holo Krome Screw Corp Apparatus for tensioning threaded members
DE1926936A1 (de) * 1968-05-28 1970-09-10 Internat Engineering Concessio Zugkoerper
FR2104554A5 (fr) * 1970-08-19 1972-04-14 Int Engineering
FR2167015A5 (fr) * 1971-12-13 1973-08-17 Modulus Corp
US3987699A (en) * 1974-11-14 1976-10-26 Popenoe Charles H Opti-mechanical displacement microindicator

Also Published As

Publication number Publication date
SE7608623L (sv) 1977-09-23
JPS52115247A (en) 1977-09-27
NL7610311A (nl) 1977-09-26
GB1555572A (en) 1979-11-14
US4041776A (en) 1977-08-16
DE2636522A1 (de) 1978-02-09

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Legal Events

Date Code Title Description
ST Notification of lapse