Pneumatic flat pads
OwnerManfred Vetter, Hans Kempkeninventors
Life of this patent
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Abstract
A pneumatic pad has two opposite covers of flexible material joined at their margins by a marginal area to form a hermetically sealed hollow space between them. The covers each contain reinforcing cord inserts. At least one cord insert of one of the covers is laid across the marginal area of the pad and extends to the other cover to overlap a portion of the cord insert of the other cover. A valve attachment to connect the hollow space to a source of compressed air is provided.
Claims25
A pneumatic flat pad with two opposed covers of flexible material spaced apart from each other and joined at their margins by a marginal joint so that the two covers and lateral marginal joint cooperate to form between them a hermetically sealed hollow space, a plurality of cord inserts embedded within said covers, each of said covers being reinforced by at least one embedded cord insert, an attachment connecting said hollow space to a source of compressed air, and at least one of the at least one cord inserts of one of the covers being embedded within and extending through the lateral marginal joint of the pad to the other cover in which it is also embedded and within which it overlaps a portion but less than all of the at least one cord insert of the other cover.
Dependencies are inferred from the claim text.