Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Patent
1997-01-13
1998-03-17
Chin, Randall
Brushing, scrubbing, and general cleaning
Implements
Brush or broom
15 411, 15391, 15392, 29444, 29512, A46B 1302
Patent
active
057272760
ABSTRACT:
A concentric roller pin for use in combination with a roller member of a vacuum cleaner wherein the concentric roller pin includes an inner end, an outer end and an intermediate portion. The inner end of the concentric roller pin is tapered and terminates in a transverse face. The transverse face of the concentric roller pin abuts a corresponding face in a tapered bore of the roller member. The intermediate portion of the concentric roller pin includes an outer knurled surface for securing the concentric roller pin to the roller member. The outer end of the concentric roller pin includes a bearing surface, a bearing lip, and an axial bore. The axial bore of the outer end of the concentric roller pin facilitates deformation thereof for securing a bearing against the bearing lip and the bearing surface.
REFERENCES:
patent: 3828387 (1974-08-01), Liebscher
patent: 3971115 (1976-07-01), Schneider
patent: 5134744 (1992-08-01), Ji
patent: 5193243 (1993-03-01), Stegens
patent: 5249328 (1993-10-01), Shin
patent: 5272785 (1993-12-01), Stegens
patent: 5373603 (1994-12-01), Stegens
patent: 5435038 (1995-07-01), Savers
patent: 5452490 (1995-09-01), Brundula
patent: 5465451 (1995-11-01), Stegens
Brundula Rudolph F.
Brundula William P.
Bruns Brush Inc.
Chin Randall
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