Patent
1989-10-16
1990-12-25
Joyce, Harold
98 402, 98 4024, 981211, F24F 1314
Patent
active
049794329
ABSTRACT:
An air diffuser is provided, preferably for an air curtain generator, which consists of a frame within which are located a plurality of louvres. The louvres are striated and rotatably adjustable about respective axes of rotation. To provide for this rotatable adjustment the louvres are mounted on splined shafts which are received in splined receptacles. The splined receptacles are made in nesting sections which are releasably connected together to provide for the loosening of the shafts and adjustable rotation of the shafts and adjustable rotation of the same to positions whereat the shafts and thereby the louvres are locked in position. Some of the shafts are in parallel with the others. Some of the shafts are further mounted in axial extension of other of the shafts. The shafts of louvres which are in axial extension of one another are in nesting relationship and for this purpose are provided with polygonal cross-sections which prevent rotation of a relative nature therebetween.
REFERENCES:
patent: 2557502 (1951-06-01), Goettl
patent: 2600934 (1952-06-01), Spieth
patent: 3145641 (1964-08-01), Morrison
patent: 3255686 (1966-06-01), Larson et al.
patent: 3308739 (1967-03-01), Gygax
patent: 4621570 (1986-11-01), Bolton et al.
Dynaforce Corporation
Joyce Harold
LandOfFree
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