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FR2045713A1 - Polyurethane airship compartment walls - permit lift gas expansion - Google Patents

Polyurethane airship compartment walls - permit lift gas expansion

Info

Publication number
FR2045713A1
FR2045713A1 FR6921283A FR6921283A FR2045713A1 FR 2045713 A1 FR2045713 A1 FR 2045713A1 FR 6921283 A FR6921283 A FR 6921283A FR 6921283 A FR6921283 A FR 6921283A FR 2045713 A1 FR2045713 A1 FR 2045713A1
Authority
FR
France
Prior art keywords
polyurethane
airship
lift gas
gas expansion
compartment walls
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.)
Granted
Application number
FR6921283A
Other languages
French (fr)
Other versions
FR2045713B1 (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.)
Bachmann & Cie
Original Assignee
Bachmann & Cie
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 Bachmann & Cie filed Critical Bachmann & Cie
Priority to FR6921283A priority Critical patent/FR2045713A1/en
Publication of FR2045713A1 publication Critical patent/FR2045713A1/en
Application granted granted Critical
Publication of FR2045713B1 publication Critical patent/FR2045713B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64B—LIGHTER-THAN AIR AIRCRAFT
    • B64B1/00—Lighter-than-air aircraft
    • B64B1/58—Arrangements or construction of gas-bags; Filling arrangements
    • B64B1/62—Controlling gas pressure, heating, cooling, or discharging gas

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Air Bags (AREA)

Abstract

Airstrip construction where the main lift envelope is subdivided into a symmetrical series of compartments by partitions of elastic material 'ESTANE' (RTM) polyurethane sheet which allow the principal compartments to be interconnected bu twhich define an isolated core compartment bounded by elastic walls which allow expansion of the light gas with rising altitude without venting the lift gas. An overall bag weight reduction of about 25-30% corresponding increases the payload.
FR6921283A 1969-06-25 1969-06-25 Polyurethane airship compartment walls - permit lift gas expansion Granted FR2045713A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6921283A FR2045713A1 (en) 1969-06-25 1969-06-25 Polyurethane airship compartment walls - permit lift gas expansion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6921283A FR2045713A1 (en) 1969-06-25 1969-06-25 Polyurethane airship compartment walls - permit lift gas expansion

Publications (2)

Publication Number Publication Date
FR2045713A1 true FR2045713A1 (en) 1971-03-05
FR2045713B1 FR2045713B1 (en) 1973-10-19

Family

ID=9036349

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6921283A Granted FR2045713A1 (en) 1969-06-25 1969-06-25 Polyurethane airship compartment walls - permit lift gas expansion

Country Status (1)

Country Link
FR (1) FR2045713A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2867450A1 (en) * 2004-03-09 2005-09-16 Francois Nicolas Jean Villon Load lifting balloon, has external envelop filled with helium, internal envelope to be filled with air, and pole piece connecting in airtight manner poles of envelopes, which are connected by inter-pole connecting material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR629683A (en) * 1926-03-13 1927-11-15 Elastic deformation flanged balloon
US1682025A (en) * 1926-03-02 1928-08-28 Zeppelin Luftschiffbau Airship
US1902519A (en) * 1921-09-06 1933-03-21 Wilfrid V N Powelson Airship
FR855128A (en) * 1939-01-10 1940-05-03 Improvements to expandable balloons
US3432122A (en) * 1967-06-19 1969-03-11 Goodyear Aerospace Corp Combination ballonet and dilation system for balloons

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1902519A (en) * 1921-09-06 1933-03-21 Wilfrid V N Powelson Airship
US1682025A (en) * 1926-03-02 1928-08-28 Zeppelin Luftschiffbau Airship
FR629683A (en) * 1926-03-13 1927-11-15 Elastic deformation flanged balloon
FR855128A (en) * 1939-01-10 1940-05-03 Improvements to expandable balloons
US3432122A (en) * 1967-06-19 1969-03-11 Goodyear Aerospace Corp Combination ballonet and dilation system for balloons

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2867450A1 (en) * 2004-03-09 2005-09-16 Francois Nicolas Jean Villon Load lifting balloon, has external envelop filled with helium, internal envelope to be filled with air, and pole piece connecting in airtight manner poles of envelopes, which are connected by inter-pole connecting material

Also Published As

Publication number Publication date
FR2045713B1 (en) 1973-10-19

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Legal Events

Date Code Title Description
ST Notification of lapse