| 摘要 |
1359792 Hot water bottles E C SMITH 5 July 1972 [6 July 1971] 31541/72 Heading A5X A hot water bottle comprising a container 2 made of a plastics material, polyethylene for example, with a screw top filler 3 at one end, and an outer sheath 4 made of a foam plastics material, polystyrene or polyurethane for example, there being one or more ports 5 in the sheath for transfer of heat from the container to the atmosphere. The container and sheath have a generally triangular cross-section. The sheath may have one or more holes 5 on one face 4a only. |
