公开(公告)号：US3574034A

公开(公告)日：1971-04-06

申请号：US3574034D

申请日：1968-04-18

Applicant: DOMTAR LTD

Inventor： HARVEY DENIS MICHAEL ,  BODYCOMB ALISTAIR KENYON

IPC: B29C53/60 ,  B65H81/06

CPC classification number: B29C53/60

Abstract: THE PRESENT INVENTION RELATES TO AN APPARATUS FOR FORMING COMPOSITE TUBES AND COMPRISING A WINDING MANDREL, A WINDING MECHANISM, AN EXTRUSION HEAD MOVEABLY MOUNTED ON THE FREE END OF THE MANDREL AND POSITIONED

TO EXTRUDE SEALANT INTO THE JOINT OF THE COMPOSITE CONTAINER WOUND ON THE MANDREL OR, IF DESIRED, OVER THE TOTAL INNER SURFACE OF THE WOUND CONTAINER.

公开(公告)号：US3915450A

公开(公告)日：1975-10-28

申请号：US32385473

申请日：1973-01-15

Applicant: DOMTAR LTD

Inventor： FLEWWELLING HERBERT MARTIN ,  HARVEY DENIS MICHAEL

IPC: E04H4/14 ,  E04H3/18

CPC classification number: E04H4/14

Abstract: Disclosed is a method of lessening the impact on a solid body, e.g., the body of a diver, when it strikes the surface of water. A localized region of turbulence is created in the water by discharging air under pressure below the surface of the water at such a rate that substantial compressibility is imparted, at least temporarily, to the water in that region and the apparent density and viscosity of the water are reduced. A swimming pool equipped with means for discharging air below the surface of the water and thereby forming a dispersion of air bubbles in the water, is shown.

Abstract translation: 本发明公开了一种减轻对身体的影响的方法，例如潜水员的身体在撞击水面时的影响。 通过在压力低于水表面的空气中排出空气，在水中产生局部湍流区域，其速率至少暂时给予该区域的水和表观密度和粘度 减少了 显示了一种游泳池，其具有用于在水面以下排出空气并由此在水中形成气泡分散的装置。