Upright water extraction cleaning machine
DCFirst Claim
1. In a portable surface cleaning apparatus having a base for movement along a surface to be cleaned, an upright handle pivotally attached to a rearward portion of the base, a recovery tank removably mounted to the base and having an inner chamber, a first suction nozzle mounted to the base, a working air conduit extending between the inner chamber and the first suction nozzle, and a vacuum source in fluid communication with the inner chamber for generating a suction in the recovery tank, working air conduit and first suction nozzle to thereby draw liquid from the surface to be cleaned and deposit the liquid in the recovery tank, a hose opening formed in said working air conduit and a cap removably mounted in said hose opening;
- an accessory hose having a first end adapted for mounting in said hose opening for fluid connection to the working air conduit and a second end adapted for connection to a cleaning tool with a second suction nozzle, the hose first end having a baffle wall adapted to block the flow from the first suction nozzle to the recovery tank when the hose first end is received in the hose opening;
the improvement comprising;
a retainer lip formed on the base adjacent the hose opening, the hose first end having a resilient arm with a retainer thereon for seating beneath the retainer lip in snap-fit relationship to said base whereby said hose first end can be retained in said hose opening at least in part by said resilient arm.
3 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A portable surface cleaning apparatus has a base for movement along a surface to be cleaned and an upright handle pivotally attached to a rearward portion of the base. A fluid dispensing nozzle for applying fluid to the surface and a suction nozzle for picking up fluid and debris from the surface are associated with the base. A clean water holding tank and a detergent holding tank are removably mounted to the handle while a recovery tank is removably mounted to the base. A mixing valve is fluidly connected between the holding tanks and the spray nozzle for changing the mixing ratio of the detergent with respect to the water. The fluid recovery tank includes an integrally molded conduit that extends from the suction nozzle and a mounting for an accessory hose that interrupts the fluid path from the suction nozzle in the conduit and redirects fluid flow through the hose. A pump is fluidly connected between the mixing valve and the dispensing nozzle and includes a pump priming valve that operates on negative air pressure to clear air from the fluid lines during pump operation. A free floating brush is pivotally attached to the base for automatically adjusting to different surface conditions during cleaning operations.
57 Citations
13 Claims
-
1. In a portable surface cleaning apparatus having a base for movement along a surface to be cleaned, an upright handle pivotally attached to a rearward portion of the base, a recovery tank removably mounted to the base and having an inner chamber, a first suction nozzle mounted to the base, a working air conduit extending between the inner chamber and the first suction nozzle, and a vacuum source in fluid communication with the inner chamber for generating a suction in the recovery tank, working air conduit and first suction nozzle to thereby draw liquid from the surface to be cleaned and deposit the liquid in the recovery tank, a hose opening formed in said working air conduit and a cap removably mounted in said hose opening;
an accessory hose having a first end adapted for mounting in said hose opening for fluid connection to the working air conduit and a second end adapted for connection to a cleaning tool with a second suction nozzle, the hose first end having a baffle wall adapted to block the flow from the first suction nozzle to the recovery tank when the hose first end is received in the hose opening;
the improvement comprising;a retainer lip formed on the base adjacent the hose opening, the hose first end having a resilient arm with a retainer thereon for seating beneath the retainer lip in snap-fit relationship to said base whereby said hose first end can be retained in said hose opening at least in part by said resilient arm. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
- 2. A portable surface cleaning apparatus according to claim 2 and further comprising a pivot mount between the hose first end and the hose opening whereby the hose first end can be rotated into mounted position in said hose opening.
-
13. A portable surface cleaning apparatus having a base for movement along a surface to be cleaned, an upright handle pivotally attached to a rearward portion of the base;
-
a recovery tank removably mounted to the base and having an inner chamber, an upper wall and at least one side wall; a first suction nozzle mounted to the base; a working air conduit formed between the upper wall of the recovery tank and a cover plate and extending between the inner chamber and the first suction nozzle; a hose opening formed in said working air conduit and a cap removably mounted in said hose opening; a vacuum source in fluid communication with the inner chamber for generating a suction in the recovery tank, working air conduit and first suction nozzle to thereby draw liquid from the surface to be cleaned and deposit the liquid in the recovery tank, an accessory hose having a first end adapted for mounting in said hose opening for fluid connection to the working air conduit and a second end adapted for connection to a cleaning tool with a second suction nozzle, the hose first end having a baffle wall adapted to block the flow from the first suction nozzle to the recovery tank when the hose first end is received in the hose opening.
-
Specification