Abstract: Breathing mask of double-wall construction having a relatively rigid outer wall and an inner wall with deformable sealing pads to be pressed against either side of the nose and the adjoining portions of the cheeks and with a rigid arc-shaped portion to be pressed against the chin.
Type:
Grant
Filed:
December 17, 1974
Date of Patent:
September 28, 1976
Assignee:
Gnosjoplast AB
Inventors:
Matts Arne Bernhard Halldin, Nils Rune Gustaf Andreasson
Abstract: A swimming plate of polyethylene plastic with a detachable handle in the form of a clam that stretches over the entire plate and whose outer legs grip in corresponding recesses in the plate.