GB848304A - Improvements in means and method of reducing frictional drag in fluids - Google Patents

Improvements in means and method of reducing frictional drag in fluids

Info

Publication number
GB848304A
GB848304A GB3359/59A GB335959A GB848304A GB 848304 A GB848304 A GB 848304A GB 3359/59 A GB3359/59 A GB 3359/59A GB 335959 A GB335959 A GB 335959A GB 848304 A GB848304 A GB 848304A
Authority
GB
United Kingdom
Prior art keywords
rubber
frictional drag
coated
polyurethane rubber
coating
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
GB3359/59A
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.)
Uniroyal Inc
Original Assignee
United States Rubber Co
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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB848304A publication Critical patent/GB848304A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Abstract

A resilient coating at least one-sixteenth of an inch thick and having an energy absorption per bounce, as defined, of from 0.5 to 0.9 and a modulus of elasticity, as defined, of between 25 and 350 p.s.i., is applied to the fluid-contacting surface of an object intended for movement in a fluid medium, for reducing the frictional drag. The coating may be of an elastomeric material e.g. polyurethane rubber, natural or synthetic rubbers, and an outer skin of an oxidation- and abrasionresistant rubber such as a neoprene may be applied. The surfaces which may be coated include those of underwater missiles, submarines, boats, surf boards, water skis, rubber containers for gasoline, pumps, pipes and airplanes. Test results are quoted for models, coated by a casting technique with a polyurethane rubber made by mixing toluene diisocyanate with a polyester prepared from adipic acid, diethylene glycol and a small amount of trimethylol ethane.
GB3359/59A 1958-01-10 1959-01-30 Improvements in means and method of reducing frictional drag in fluids Expired GB848304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US848304XA 1958-01-10 1958-01-10

Publications (1)

Publication Number Publication Date
GB848304A true GB848304A (en) 1960-09-14

Family

ID=22187477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3359/59A Expired GB848304A (en) 1958-01-10 1959-01-30 Improvements in means and method of reducing frictional drag in fluids

Country Status (1)

Country Link
GB (1) GB848304A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371743A (en) * 1965-04-29 1968-03-05 American Radiator & Standard Jet exhaust silencing nozzle with suction applied at exit wall
ES2320833A1 (en) * 2006-04-05 2009-05-28 Materiel Pour L'arboiculture Fruitiere Device for treating fruit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371743A (en) * 1965-04-29 1968-03-05 American Radiator & Standard Jet exhaust silencing nozzle with suction applied at exit wall
ES2320833A1 (en) * 2006-04-05 2009-05-28 Materiel Pour L'arboiculture Fruitiere Device for treating fruit

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