Carpet cleaning apparatus with auxiliary cleaning device arrangement
First Claim
1. In a carpet cleaning apparatus having a nozzle including a nozzle chamber communicating with a carpet surface, vacuum generating means for drawing dirt laden air through the nozzle chamber, an agitator including brushes, a handle assembly pivotally connected to the nozzle and movable between an operating position where it is generally inclined relative to a carpeted surface and a storage position where it is generally vertical relative to a carpeted surface, and an auxiliary cleaning device engageable with a carpet surface to provide additional cleaning, the improvement comprising:
- retraction means responsive to pivotal movement of said handle assembly to the storage position for automatically moving said auxiliary cleaning device to a retracted position out of engagement with a carpet surface;
retaining means for locking said auxiliary cleaning device in the retracted position, said retaining means selectively permitting either movement of said auxiliary cleaning device to a carpet engaging position or maintaining said auxiliary device in the retracted position independently of subsequent handle assembly movement from the storage position.
4 Assignments
0 Petitions
Accused Products
Abstract
A carpet cleaning apparatus is disclosed which includes a new and improved auxiliary cleaning device arrangement incorporated in a conventional vacuum cleaner. The auxiliary cleaning device is movable into a carpet engaging position for frictionally engaging a carpet surface and simultaneously distributing cleaning material thereon which emulsify, rub, and thereby cause release of dirt, dust and other foreign particles from carpet fibers and allow their removal and collection by agitator and suction cleaning elements of the apparatus. A retraction means is provided for automatically retracting the auxiliary cleaning device in response to handle assembly movement to a storage position, and a retaining means is provided to lock the device in the retracted position. The retaining means selectively either permits movement of the device to a carpet engaging position or maintains the device in a retracted position independently of subsequent handle assembly movement. In one arrangement utilizing a liquid fed auxiliary cleaning device, a liquid shut-off means is disclosed for automatically terminating liquid flow to the device in response to movement of the handle assembly to a substantially vertical or storage position.
84 Citations
24 Claims
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1. In a carpet cleaning apparatus having a nozzle including a nozzle chamber communicating with a carpet surface, vacuum generating means for drawing dirt laden air through the nozzle chamber, an agitator including brushes, a handle assembly pivotally connected to the nozzle and movable between an operating position where it is generally inclined relative to a carpeted surface and a storage position where it is generally vertical relative to a carpeted surface, and an auxiliary cleaning device engageable with a carpet surface to provide additional cleaning, the improvement comprising:
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retraction means responsive to pivotal movement of said handle assembly to the storage position for automatically moving said auxiliary cleaning device to a retracted position out of engagement with a carpet surface; retaining means for locking said auxiliary cleaning device in the retracted position, said retaining means selectively permitting either movement of said auxiliary cleaning device to a carpet engaging position or maintaining said auxiliary device in the retracted position independently of subsequent handle assembly movement from the storage position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. In a carpet cleaning apparatus having a nozzle including a nozzle chamber communicating with a carpet surface, vacuum generating means for drawing dirt laden air through the nozzle chamber, an agitator including brushes, a handle assembly pivotally connected to the nozzle and movable between an inclined position relative to a carpet surface and a storage position where it is generally vertical relative to a carpet surface, an auxiliary cleaning device engageable with a carpet surface to provide additional cleaning and liquid supply means for supplying liquid to said auxiliary cleaning device, the improvement comprising:
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liquid shut-off means responsive to pivotal movement of said handle assembly to the storage position for terminating liquid flow to said auxiliary cleaning device; and retraction means responsive to movement of said handle assembly to the storage position for automatically moving said auxiliary cleaning device to a retracted position out of engagement with a carpet surface. - View Dependent Claims (15, 16, 17, 18)
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19. A carpet cleaning apparatus having a nozzle including a nozzle chamber communicating with a carpet surface, vacuum generating means for drawing dirt laden air through the nozzle chamber, an agitator including brushes, a handle assembly pivotally connected to the nozzle and movable between an operating position where it is generally inclined relative to a carpeted surface and a storage position where it is generally vertical relative to a carpeted surface, and an auxiliary cleaning device elongated in a direction transverse to direction of travel of the carpet cleaning apparatus and engageable with a carpet surface to provide additional cleaning, said carpet cleaning apparatus further comprising:
compensating means providing support for said auxiliary cleaning device at a generally central location along the transverse extent thereof and providing for change in transverse elevation of said auxiliary cleaning device in response to an uneven carpet surface thereby establishing a more uniform contact interrelationship between said auxiliary cleaning device and a carpet surface. - View Dependent Claims (20)
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21. A carpet cleaning apparatus comprising a nozzle including a nozzle chamber communicating with a carpet surface, vacuum generating means for drawing dirt laden air through the nozzle chamber, an agitator including brushes, a handle assembly pivotally connected to the nozzle and movable between an operating position where it is generally inclined relative to a carpet surface and a storage position where it is generally vertical relative to a carpet surface and an auxiliary cleaning device engageable with a carpet surface to provide additional cleaning, said carpet cleaning apparatus further comprising:
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retraction means responsive to pivotal movement of said handle assembly to the storage position for automatically moving said auxiliary cleaning device relative to said agitator to a retracted position out of engagement with a carpet surface; and compensating means for providing a change in transverse elevation of said auxiliary cleaning device in response to an uneven carpet surface thereby providing a more uniform contact interrelationship between said auxiliary cleaning device and a carpet surface. - View Dependent Claims (22, 23, 24)
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Specification