Patents Examined by A. Calvert
  • Patent number: 4007503
    Abstract: A pillow case comprising first and second walls of flexible material each having a shape symmetrical about is center line.The center of the pillow case is narrower than the ends to form a generally butterfly shape.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: February 15, 1977
    Inventor: Bernard Currs Watkin
  • Patent number: 3968530
    Abstract: Pads and mattresses having novel aggregate fillers are described. Aggregates containing a highly viscous gel-like fluid and a mixture of re-expanded polystyrene beads and silica beads are utilized to produce lightweight pads and mattresses which provide support with favorable pressure distribution, thereby minimizing high pressure contact areas between a user and the pad or mattress. The novel pads and mattresses particularly are useful for the minimization of pressure sores, which may result in situations wherein a user must remain on a pad or mattress for long periods of time.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: July 13, 1976
    Assignee: G. D. Searle & Co.
    Inventor: Reginald Dyson