Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2004-06-25
2010-11-02
Redding, David A (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S246000, C037S260000, C037S270000
Reexamination Certificate
active
07823252
ABSTRACT:
An accessory for a blower having a first end with a connector assembly for connecting the accessory to the blower, a second end for directing air under pressure from the blower, a lower blade portion extending at least partly between the first end and the second end for facilitating a pneumatic shoveling operation, and an upper funnel portion extending at least partly between the first end and the second end for facilitating a pneumatic sweeping operation. The accessory can be selectively connected to the blower via the connector assembly so that the air under pressure from the blower cooperates with the lower blade portion and the upper funnel portion to perform a combined pneumatic shoveling/sweeping operation.
REFERENCES:
patent: 693093 (1902-02-01), Wheeler
patent: 736450 (1903-08-01), Sharpe, Jr.
patent: 2675660 (1954-04-01), Barnard
patent: 3999316 (1976-12-01), Palmer
patent: 4064679 (1977-12-01), Spinner
patent: 4118826 (1978-10-01), Kaeser
patent: 4597203 (1986-07-01), Middleton
patent: 6494514 (2002-12-01), Stinnett et al.
Search Report dated Jan. 3, 2005 from corresponding PCT Appl. No. PCT/US04/20683.
Ohlandt Greeley Ruggiero & Perle L.L.P.
Redding David A
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