Brushing – scrubbing – and general cleaning
Patent
1974-12-09
1976-01-20
Parsons, Jr., Marion
Brushing, scrubbing, and general cleaning
85 83, 151 4175, 24 73PF, F16B 1306
Patent
active
039330761
ABSTRACT:
Disclosed is a screw grommet which is used to bolt an object to a plate or the like. The unique structure of a screw grommet according to this invention permits frictionless insertion of the leg of the grommet in an aperture of the plate and at the same time, positive engagement with the circumferential edge of the aperture of the plate.
REFERENCES:
patent: 1755590 (1930-04-01), Carr
patent: 2571394 (1951-10-01), Trafton
patent: 3130822 (1964-04-01), Meyer
patent: 3532024 (1970-10-01), Gutshall
patent: 3830134 (1974-08-01), Erickson
patent: 3836704 (1974-09-01), Coules
Beart R. W.
Halvorsen J. R.
Nifco Inc.
Parsons, Jr. Marion
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