Adjustable vacuum tube clamp assembly and vacuum cleaners including same

A vacuum cleaner comprising:

• a vacuum cleaner suction unit;
• and
• a vacuum tube assembly connected in fluid communication with the vacuum cleaner suction unit, the vacuum tube assembly comprising:
• an outer tube including a first end and a second end distal from the first end, the outer tube defining a vacuum passage extending from the first end to the second end;
• an inner tube disposed at least partially within the vacuum passage and connected to the outer tube for telescopic adjustment therewith, the inner tube including a first end and a second end distal from the first end, wherein one of the first end of the outer tube and the second end of the inner tube is configured for connection to a hose of the vacuum cleaner, and the other of the first end of the outer tube and second end of the inner tube is configured for connection to a vacuum cleaner tool;
• at least one seal disposed between the outer tube and the inner tube;
• an adjustment clamp connected to the second end of the outer tube, the adjustment clamp comprising:
• a clamp body connected to the second end of the outer tube, the clamp body having an inner diameter;
• and
• a lever operatively connected to the clamp body and moveable between a first, latched position and a second, unlatched position to permit selective adjustment of the inner diameter of the clamp body and selective clamping between the clamp body and the inner tube;
• and
• an electrical conduit and an electrical conduit tube assembly defining a conduit passage, the electrical conduit extending through the conduit passage, and wherein the clamp body further includes a conduit tube sleeve defining an opening extending longitudinally through the clamp body, at least a portion of the conduit tube assembly extending through the opening.

A backpack vacuum cleaner comprising:

• a backpack assembly including a vacuum cleaner suction unit;
• and
• a vacuum tube assembly connected in fluid communication with the vacuum cleaner suction unit, the vacuum tube assembly comprising:
• an outer tube including a first end and a second end distal from the first end, the outer tube defining a vacuum passage extending from the first end to the second end;
• an inner tube disposed at least partially within the vacuum passage and connected to the outer tube for telescopic adjustment therewith, the inner tube including a first end and a second end distal from the first end, wherein one of the first end of the outer tube and the second end of the inner tube is configured for connection to a hose of the vacuum cleaner, and the other of the first end of the outer tube and second end of the inner tube is configured for connection to a vacuum cleaner tool;
• and
• an adjustment clamp connected to the second end of the outer tube, the adjustment clamp comprising:
• a clamp body connected to the second end of the outer tube, the clamp body having an inner diameter;
• and
• a lever operatively connected to the clamp body and moveable between a first, latched position and a second, unlatched position to permit selective adjustment of the inner diameter of the clamp body and selective clamping between the clamp body and the inner tube;
• and
• an electrical conduit and an electrical conduit tube assembly defining a conduit passage, the electrical conduit extending through the conduit passage, and wherein the clamp body further includes a conduit tube sleeve defining an opening extending longitudinally through the clamp body, at least a portion of the conduit tube assembly extending through the opening.