GB1329067A - Method of producing hollow tetrahedrons - Google Patents
Method of producing hollow tetrahedronsInfo
- 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
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)
Abstract
1329067 Moulding tetrahedral bodies ASCO SA 4 April 1972 [2 April 1971] 15416/72 Heading B5A A method of producing hollow tetrahedral bodies, comprises moulding two symmetrical triangular faces 4, and joining their bases 3 together with the distance between the apices 5 equal to the length of the bases 3. The bases can be joined by welding, adhesive or riveting.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7111659A FR2132945A5 (en) | 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 (en) |
DE (1) | DE2215794A1 (en) |
FR (1) | FR2132945A5 (en) |
GB (1) | GB1329067A (en) |
IT (1) | IT952526B (en) |
Cited By (1)
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR909217A (en) * | 1945-02-12 | 1946-05-02 | Decorative ball for Christmas trees: 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 (en) * | 1969-02-26 | 1975-09-25 | Wilhelm 6080 Gross-Gerau Grimm | Shaped stone |
-
1971
- 1971-04-02 FR FR7111659A patent/FR2132945A5/fr not_active Expired
-
1972
- 1972-03-30 DE DE19722215794 patent/DE2215794A1/en active Pending
- 1972-03-31 US US00240053A patent/US3777359A/en not_active Expired - Lifetime
- 1972-04-01 IT IT49421/72A patent/IT952526B/en active
- 1972-04-04 GB GB1541672A patent/GB1329067A/en not_active Expired
Cited By (1)
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 (en) | 1973-07-30 |
DE2215794A1 (en) | 1972-10-12 |
FR2132945A5 (en) | 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 |