| 摘要 |
PCT No. PCT/GB96/00482 Sec. 371 Date Dec. 4, 1997 Sec. 102(e) Date Dec. 4, 1997 PCT Filed Mar. 1, 1996 PCT Pub. No. WO96/27480 PCT Pub. Date Sep. 12, 1996An applicator head comprises a pad and a hub element. The hub element has on one side a boss for coupling to a rotary drive unit and on the opposite side a surface releasably attached to the pad. The pad has a central axis and a recess centered about the axis and complementary with the attachment surface of the hub element such that the attachment surface engages the base of the recess, and the pad and the boss are in substantially coaxial alignment. The releasable attachment is preferably provided by a hook-and-loop type fastener.
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