Industrial vacuum apparatus
First Claim
Patent Images
1. Industrial scale vacuum cleaning apparatus comprising, in combination:
- (a) an elongated hose having intake and outlet ends;
(b) manually engageable handle means connected to said intake end of said hose;
(c) a rotatable drum upon which said hose may be wound and unwound;
(d) receptacle means with which said outlet end of said hose communicates, for receiving and containing material passing through said hose;
(e) blower means communicating with said receptacle means for creating a vacuum to draw material through said hose from said intake end to said outlet end and thence to said receptacle means;
(f) at least three resilient roller members mounted for rotation about axes in a common plane and having peripheries tangent to a circle substantially equal in circumference to said hose;
(g) said hose passing through said plane with its longitudinal axis normal thereto and frictionally engaged on its outer surface by each of said roller members;
(h) reversible motor means for imparting rotation to all of said roller members at the same speed in either direction for selectively moving said hose toward or away from said drum; and
(i) control means mounted upon said handle means for selective actuation by an operator thereof for causing movement of said motor means in either direction.
0 Assignments
0 Petitions
Accused Products
Abstract
The flexible hose of an industrial scale vacuum cleaning apparatus is wound upon and unwound from a drum by a reversible motor which drives four rollers tangentially engaging the hose at a point between the drum and the vacuum intake. The rollers preferably comprise small pneumatic tires inflated to a low pressure and the motor control means are located on the operator'"'"'s handle connected to the vacuum intake head.
36 Citations
12 Claims
-
1. Industrial scale vacuum cleaning apparatus comprising, in combination:
-
(a) an elongated hose having intake and outlet ends; (b) manually engageable handle means connected to said intake end of said hose; (c) a rotatable drum upon which said hose may be wound and unwound; (d) receptacle means with which said outlet end of said hose communicates, for receiving and containing material passing through said hose; (e) blower means communicating with said receptacle means for creating a vacuum to draw material through said hose from said intake end to said outlet end and thence to said receptacle means; (f) at least three resilient roller members mounted for rotation about axes in a common plane and having peripheries tangent to a circle substantially equal in circumference to said hose; (g) said hose passing through said plane with its longitudinal axis normal thereto and frictionally engaged on its outer surface by each of said roller members; (h) reversible motor means for imparting rotation to all of said roller members at the same speed in either direction for selectively moving said hose toward or away from said drum; and (i) control means mounted upon said handle means for selective actuation by an operator thereof for causing movement of said motor means in either direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification