Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1989-12-15
1991-04-02
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15405, 15414, 285 7, 285376, 285921, A47L 902
Patent
active
050036629
ABSTRACT:
A connector is provided for releaseably fastening a vacuum pipe to the body of an implement which is convertible between a blower and vacuum mode. The vacuum pipe is adapted to attach to an intake port formed in the body of the implement. The vacuum pipe is provided with a collar having a series of angularly spaced apart receptacles each having a passage therethrough provided with a locking surface extending part way along the passage and an abutment aligned with the locking surface defining a space therebetween. The body is provided with a plurality of stakes angularly spaced about the intake port aligned with the passages on the collar. Each stake is provided with a locking face disposed and arranged to overhang the locking surface in the collar and has a thickness substantially equal to the spacing between the locking surface and abutment. The collar is adapted to be angularly positioned relative to the body with the passages aligned with the stakes. The collar can then be turned to move the stakes into the spacing thereby holding the stakes with the locking faces overhanging the locking surfaces on the collar to provide a secure connection between the vacuum pipe and implement intake port. Preferably, the intake port includes a sleeve-like extension to telescopically fit within the vacuum pipe and the groove extending about the sleeve to receive and stabilize an end the vacuum pipe.
REFERENCES:
patent: 2468849 (1949-05-01), Trainor
patent: 3219364 (1965-11-01), Woddridge
patent: 3250551 (1966-05-01), Draudt
patent: 3797764 (1974-03-01), Guth
patent: 4325163 (1982-04-01), Mattson et al.
patent: 4674146 (1987-06-01), Tuggle et al.
patent: 4694528 (1987-09-01), Comer et al.
Inertia Dynamics Corporation
Moore Chris K.
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