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ES352519A1 - Perfeccionamientos en la construccion de estructuras huecasy monoliticas, habitables. - Google Patents

Perfeccionamientos en la construccion de estructuras huecasy monoliticas, habitables.

Info

Publication number
ES352519A1
ES352519A1 ES352519A ES352519A ES352519A1 ES 352519 A1 ES352519 A1 ES 352519A1 ES 352519 A ES352519 A ES 352519A ES 352519 A ES352519 A ES 352519A ES 352519 A1 ES352519 A1 ES 352519A1
Authority
ES
Spain
Prior art keywords
concrete
plates
propeller structure
delimit
monolithic
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
ES352519A
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.)
STRESSED STRUCTURES Inc
Original Assignee
STRESSED STRUCTURES Inc
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 STRESSED STRUCTURES Inc filed Critical STRESSED STRUCTURES Inc
Publication of ES352519A1 publication Critical patent/ES352519A1/es
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/005—Spiral-shaped propellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
ES352519A 1967-03-13 1968-04-06 Perfeccionamientos en la construccion de estructuras huecasy monoliticas, habitables. Expired ES352519A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62260267A 1967-03-13 1967-03-13

Publications (1)

Publication Number Publication Date
ES352519A1 true ES352519A1 (es) 1969-12-16

Family

ID=24494794

Family Applications (1)

Application Number Title Priority Date Filing Date
ES352519A Expired ES352519A1 (es) 1967-03-13 1968-04-06 Perfeccionamientos en la construccion de estructuras huecasy monoliticas, habitables.

Country Status (2)

Country Link
US (1) US3426852A (es)
ES (1) ES352519A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947939A (en) * 1974-07-18 1976-04-06 Foster Wheeler Energy Corporation Method for the manufacture of turbulators
DE3120345A1 (de) * 1981-05-22 1982-12-09 Reinhold Dipl.-Ing. 8520 Erlangen Schmidt Propeller-antrieb
US8764399B1 (en) * 2010-05-03 2014-07-01 Robert W Linscott Spiral plane drag turbine
US9045227B1 (en) * 2011-12-19 2015-06-02 William Dwight Gramling Dual fan aerodynamic lift device
WO2014047619A2 (en) * 2012-09-24 2014-03-27 Chris Rorres Methods and apparatus for moving fluid using a strake

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US573963A (en) * 1896-12-29 Territory
US352394A (en) * 1886-11-09 Geoege
US897738A (en) * 1906-04-28 1908-09-01 Worthie E Colyer Flying-machine.
US1058790A (en) * 1912-10-23 1913-04-15 Paul P Pierce Turbine.
US1738994A (en) * 1927-02-17 1929-12-10 Otto N Gredell Method of forming spiral conveyers
FR924207A (fr) * 1946-02-28 1947-07-30 Appareil générateur de force
US2980667A (en) * 1958-10-31 1961-04-18 Allis Chalmers Mfg Co Rotating fuel element reactor pump

Also Published As

Publication number Publication date
US3426852A (en) 1969-02-11

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