Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1986-06-20
1987-12-01
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15350, 55DIG3, 264257, 264266, A47L 900
Patent
active
047094435
ABSTRACT:
A relatively rigid, air permeable panel suitable, for example, as a diffuser on a hard box vacuum cleaner housing. The panel is a composite of fabric and a polymeric frame molded in situ on the fabric. The disclosed molded frame technique avoids the necessity of separate fastening means between the fabric and frame and obviates the need for edge finishing of the fabric.
REFERENCES:
patent: 2633596 (1953-04-01), Turner et al.
patent: 3408438 (1968-10-01), Staunton
patent: 3491519 (1970-01-01), Ettridge
patent: 3879797 (1975-04-01), Principe et al.
patent: 4130622 (1978-12-01), Pawlak
patent: 4216184 (1980-08-01), Thomas
Moore Chris K.
The Scott & Fetzer Company
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