GB1329067A - Method of producing hollow tetrahedrons - Google Patents

Method of producing hollow tetrahedrons

Info

Publication number
GB1329067A
GB1329067A GB1541672A GB1541672A GB1329067A GB 1329067 A GB1329067 A GB 1329067A GB 1541672 A GB1541672 A GB 1541672A GB 1541672 A GB1541672 A GB 1541672A GB 1329067 A GB1329067 A GB 1329067A
Authority
GB
United Kingdom
Prior art keywords
producing hollow
bases
hollow tetrahedrons
april
moulding
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.)
Expired
Application number
GB1541672A
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.)
Asco SAS
Original Assignee
Asco SAS
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 Asco SAS filed Critical Asco SAS
Publication of GB1329067A publication Critical patent/GB1329067A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
    • G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
    • 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
    • Y10S52/00—Static structures, e.g. buildings
    • Y10S52/10—Polyhedron
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49893—Peripheral joining of opposed mirror image parts to form a hollow body
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • Business, Economics & Management (AREA)
  • Geometry (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Toys (AREA)
GB1541672A 1971-04-02 1972-04-04 Method of producing hollow tetrahedrons Expired GB1329067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7111659A FR2132945A5 (de) 1971-04-02 1971-04-02

Publications (1)

Publication Number Publication Date
GB1329067A true GB1329067A (en) 1973-09-05

Family

ID=9074635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1541672A Expired GB1329067A (en) 1971-04-02 1972-04-04 Method of producing hollow tetrahedrons

Country Status (5)

Country Link
US (1) US3777359A (de)
DE (1) DE2215794A1 (de)
FR (1) FR2132945A5 (de)
GB (1) GB1329067A (de)
IT (1) IT952526B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9721339B2 (en) 2014-07-04 2017-08-01 ARC Devices, Ltd Device having digital infrared sensor and non-touch optical detection of amplified temporal variation of vital signs

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026087A (en) * 1976-04-20 1977-05-31 White Robert R Building block
US4086738A (en) * 1976-10-12 1978-05-02 Louis Saccoccio Kit and components for constructing decorative polyhedrals
US5168677A (en) * 1989-11-15 1992-12-08 Ernesto Daniel Gyurec Method of constructing flat building block modules from the union of two frustums by their congruent bases and slot connectors complement for a variety of constructive or amusing applications
US7574830B2 (en) * 2006-08-08 2009-08-18 Christopher Baker High strength lightweight material
USD798392S1 (en) * 2014-05-27 2017-09-26 T. Dashon Howard Tetrahedral positive universal joint block

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR909217A (fr) * 1945-02-12 1946-05-02 Boule décorative pour arbres de noe:l
US2776521A (en) * 1954-10-27 1957-01-08 Elmer L Zimmerman Construction toy
GB848389A (en) * 1958-04-12 1960-09-14 Sankey Targetti Decorative star element for christmas trees
US3289322A (en) * 1965-06-08 1966-12-06 John J R Patrick Crystal structure display and method
DE1909647B2 (de) * 1969-02-26 1975-09-25 Wilhelm 6080 Gross-Gerau Grimm Formstein

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9721339B2 (en) 2014-07-04 2017-08-01 ARC Devices, Ltd Device having digital infrared sensor and non-touch optical detection of amplified temporal variation of vital signs

Also Published As

Publication number Publication date
IT952526B (it) 1973-07-30
DE2215794A1 (de) 1972-10-12
FR2132945A5 (de) 1972-11-24
US3777359A (en) 1973-12-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee