Surface maintenance equipment
First Claim
1. Surface maintenance equipment comprising a body structure, a plurality of wheels for supporting said body structure, a downwardly opening housing defining a pickup chamber, said housing having a debris exit, said housing being carried by said body structure, means for storage of dirt and debris which are picked up from said chamber, duct means for interconnecting said housing and said storage means, a plurality of spaced, anti-clog bars overlying the exit of said housing whereby said anti-clog bars prevent oversized debris from entering and clogging said duct means.
1 Assignment
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Accused Products
Abstract
The present invention provides surface maintenance equipment, such as for sweeping lawns, which includes mechanism for preventing clogging of ducts leading to the fan and/or the hopper.
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Citations
15 Claims
- 1. Surface maintenance equipment comprising a body structure, a plurality of wheels for supporting said body structure, a downwardly opening housing defining a pickup chamber, said housing having a debris exit, said housing being carried by said body structure, means for storage of dirt and debris which are picked up from said chamber, duct means for interconnecting said housing and said storage means, a plurality of spaced, anti-clog bars overlying the exit of said housing whereby said anti-clog bars prevent oversized debris from entering and clogging said duct means.
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7. A sweeper comprising body means supported on a plurality of wheels, said body means carrying a rotatably driven cylindrical tool and a downwardly opening housing closely surrounding said tool, said body means further carrying a hopper and duct means interconnecting said housing and said hopper, said sweeper including means for vacuumizing said housing and at least a portion of said duct means, clog prevention bars disposed at a location between said housing and said duct means to prevent overlength debris from entering and clogging said duct means, said clog prevention bars being extendible to an operative position and retractable to an inoperative position.
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8. A sweeper comprising:
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body means supported on a plurality of wheels, said body means including a hopper and a paddle housing, means for interconnecting said hopper and housing; rotatably driven paddle means supported in said housing; a vacuum fan for vacuumizing said housing; and means to prevent overly long debris from clogging said interconnecting means. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification