Beds – Invalid bed or surgical support – Vertically movable support for whole body of user
Reexamination Certificate
2007-03-06
2007-03-06
Trettel, Michael (Department: 3673)
Beds
Invalid bed or surgical support
Vertically movable support for whole body of user
C005S086100
Reexamination Certificate
active
11171950
ABSTRACT:
A vertically adjustable mechanical bed consisting of a bed frame for support of a mattress and occupant attached to moveable leg means powered by a motor means. Operation of the motor means causes a bearing block attached to the leg means to move longitudinally along a guide rod means, thereby collapsing the leg means beneath the bed and moving the bed frame vertically. Collapsing the bed to its substantially lowermost position causes the bearing block to engage a spring, thereby compressing said spring between the bearing block and a transverse member of the bed frame. The energy stored by the compression of the spring is used to raise the bed from its substantially lowermost position. Pivotally attached to the leg means is a rolling means consisting of a caster and foot arrangement. During normal operation, the foot is firmly engaged with the floor surface. When the bed frame moves to its substantially uppermost position, a pin extending from the leg means and constrained in a slot on a flanged face of the rolling means engages one end of the slot, thereby causing the rolling means to pivot and the caster to engage the floor, rendering the bed horizontally mobile.
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PCT International Search Report completed Apr. 9, 2002, for PCT/CA01/01362, International Filing Date Sep. 28, 2001.
Advertisement for Joerns Ultra Care Universal Bed Care (Sunrise Medical, 1999).
Advertisement for Eurocare Bed, (Kokuyo).
Maxxum Series Low Bed, Advertising Brochure (M.C. Healthcare Products Inc., Jan. 2003).
Calfee Halter & Griswold LLP
Invacare Corporation
Trettel Michael
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