US4780992A — Apparatus for cleaning pool tile

Claim 1

Independent Claim 114 words

An apparatus for cleaning swimming pool tile, said apparatus comprising: (a) an elongated pole handle, said pole handle including a substantially vertical lower portion for reaching downwardly into a swimming pool, and a slanted upper portion for extending rearwardly from said lower portion towards an operator standing near the edge of a swimming pool; (b) a drive shaft mounted for rotation within said pole handle; (c) a fuel-consuming motor for rotating said drive shaft; (d) an abrasion member detachably mounted on the lower end of said drive shaft for rotation therewith; and (e) a dispensing unit detachably mounted on the exterior surface of said pole handle for delivering cleaning fluid to said abrasion member.

Claim 2

Independent Claim 114 words

An apparatus for cleaning swimming pool tile, said apparatus comprising: (a) an elongated pole handle, said pole handle including a substantially vertical lower portion for reaching downwardly into a swimming pool, and a slanted upper portion for extending rearwardly from said lower portion towards an operator standing near the edge of a swimming pool; (b) a drive shaft mounted for rotation within said pole handle; (c) a fuel-consuming motor for rotating said drive shaft; (d) an abrasion member detachably mounted on the lower end of said drive shaft for rotation therewith; and (e) a dispensing unit detachably mounted on the exterior surface of said pole handle for delivering cleaning fluid to said abrasion member.

Claim 3

Dependent Claim 12 words

The apparatus of claim 1, in which said motor is gasoline powered.

Claim 4

Dependent Claim 31 words

The apparatus of claim 1, in which said slanted upper portion of said pole handle extends at an angle of approximately 45° degrees with respect to said substantially vertical lower portion.

Claim 5

Dependent Claim 46 words

The apparatus of claim 1, in which said abrasion member comprises a substantially cylindrical brush for cleaning the vertical side walls of a swimming pool, said brush having a plurality of bristles which extend radially outwardly with respect to the longitudinal axis of said pole handle.

Claim 6

Dependent Claim 36 words

The apparatus of claim 1, in which said abrasion member comprises a pumice stone having a substantially cylindrical outer surface, for scrubbing thick and hard calcium deposits off the vertical side walls of a swimming pool.

Claim 7

Dependent Claim 53 words

The apparatus of claim 1, in which said abrasion member comprises a brush for cleaning horizontal surfaces, said brush including a transverse body portion which extends substantially normally to the longitudinal axis of said pole handle, and a plurality of bristles which extend perpendicularly from said body portion in a substantially vertical direction.

Claim 8

Dependent Claim 46 words

The apparatus of claim 1, in which said dispensing unit comprises: (a) a bottle containing cleaning fluid; (b) means for detachably mounting said bottle on said pole handle; and (c) a discharge hose leading from said bottle for directing said cleaning fluid onto said abrasion member.

Claim 9

Dependent Claim 35 words

The apparatus of claim 7, further comprising guide means detachably mounted on the lower portion of said pole handle for supporting said discharge hose in spaced relation to the exterior surface of said pole handle.

Claim 10

Dependent Claim 23 words

The apparatus of claim 7, in which said dispensing unit comprises a piston-pump for assisting the discharge of cleaning fluid from said bottle.

Claim 11

Dependent Claim 28 words

The apparatus of claim 7, in which said bottle includes an outlet tube having a small diameter bore for continuously dispensing the cleaning fluid in a drip-feed fashion.

Claim 12

Independent Claim 197 words

An apparatus for cleaning tile surfaces, said apparatus comprising: (a) a string trimmer body, said string trimmer body including; (i) an elongated pole handle, said pole handle having a substantially vertical lower portion and a slanted upper portion. (ii) an upper hand grip formed at the top of said slanted upper portion of said pole handle, (iii) a lower hand grip formed below said upper hand grip, (iv) a drive shaft mounted for rotation within said pole handle, (v) a gasoline-powered motor mounted at the top of said pole handle for rotating said drive shaft, (vi) a collar member mounted at the bottom of said drive shaft and rotatable with said drive shaft, (vii) a connector element provided on said collar member for connection to a detachable lawn care accessory; (b) an abrasion member detachably mounted on said collar member in place of said lawn care accessory; and (c) a dispensing unit detachably mounted on the exterior surface of said pole handle for delivering cleaning fluid to said abrasion member, said dispensing unit including; (i) a bottle containing cleaning fluid, (ii) a discharge hose leading from said bottle for directing said cleaning fluid onto said abrasion member.

Claim 13

Independent Claim 197 words

An apparatus for cleaning tile surfaces, said apparatus comprising: (a) a string trimmer body, said string trimmer body including; (i) an elongated pole handle, said pole handle having a substantially vertical lower portion and a slanted upper portion. (ii) an upper hand grip formed at the top of said slanted upper portion of said pole handle, (iii) a lower hand grip formed below said upper hand grip, (iv) a drive shaft mounted for rotation within said pole handle, (v) a gasoline-powered motor mounted at the top of said pole handle for rotating said drive shaft, (vi) a collar member mounted at the bottom of said drive shaft and rotatable with said drive shaft, (vii) a connector element provided on said collar member for connection to a detachable lawn care accessory; (b) an abrasion member detachably mounted on said collar member in place of said lawn care accessory; and (c) a dispensing unit detachably mounted on the exterior surface of said pole handle for delivering cleaning fluid to said abrasion member, said dispensing unit including; (i) a bottle containing cleaning fluid, (ii) a discharge hose leading from said bottle for directing said cleaning fluid onto said abrasion member.

Claim 14

Dependent Claim 59 words

The apparatus of claim 11, in which said abrasion member comprises: (a) a substantially cylindrical brush for cleaning vertical tile surfaces, said brush having a plurality of bristles extending radially outwardly with respect to the longitudinal axis of said pole handle; and (b) a mounting portion for connecting said brush to said collar on said string trimmer drive shaft.

Claim 15

Dependent Claim 48 words

The apparatus of claim 11, in which said abrasion member comprises: (a) a pumice stone having a substantially cylindrical outer surface for removing hard calcium deposits from vertical tile surfaces; and (b) a mounting portion for connecting said brush to said collar on said string trimmer drive shaft.

Claim 16

Dependent Claim 73 words

The apparatus of claim 11, in which said abrasion member comprises: (a) a brush for cleaning horizontal tile surfaces, said brush including a transverse body portion which extends substantially normally to the longitudinal axis of said pole handle, and a plurality of bristles which extend perpendicularly from said body portion in a substantially vertical direction; and (b) a mounting portion for connecting said brush to said collar on said string trimmer drive shaft.

Claim 17

Dependent Claim 33 words

The apparatus of claim 14, further comprising a swivel joint between said body portion and said mounting element, for allowing the angle of said brush relative to said handle pole to be adjusted.

Claim 18

Dependent Claim 56 words

The apparatus of claim 12 further comprising an adapter element intermediate said abrasion member and said collar for coupling said abrasion member to said collar, said adapter element comprising means on one end for engaging said mounting portion of said abrasion member, and means at the opposite end for engaging said connector element on said collar.

Claim 19

Dependent Claim 56 words

The apparatus of claim 13 further comprising an adapter element intermediate said abrasion member and said collar for coupling said abrasion member to said collar, said adapter element comprising means on one end for engaging said mounting portion of said abrasion member, and means at the opposite end for engaging said connector element on said collar.

Claim 20

Dependent Claim 56 words

The apparatus of claim 14 further comprising an adapter element intermediate said abrasion member and said collar for coupling said abrasion member to said collar, said adapter element comprising means on one end for engaging said mounting portion of said abrasion member, and means at the opposite end for engaging said connector element on said collar.

Claim 21

Dependent Claim 23 words

The apparatus of claim 11, in which said dispensing unit comprises a piston-pump for assisting the discharge of cleaning fluid from said bottle.

Claim 22

Dependent Claim 28 words

The apparatus of claim 19, further comprising trigger means proximate one of said hand grips for remotely actuating said piston pump to discharge said fluid from said bottle.

Claim 23

Dependent Claim 146 words

A conversion assembly for use in combination with the body of a string trimmer of the type including an elongated pole handle having a substantially vertical lower portion and a slanted upper portion, a drive shaft mounted for rotation with said pole handle, a motor for rotating said drive shaft, a collar member mounted at the bottom of said drive shaft and rotatable with said drive shaft, and a connector element provided on said collar member for connection to a detachable lawn care accessory, said conversion assembly comprising: (a) an abrasion member for detachably mounting on said collar member in place of said lawn care accessory in order to connect said abrasion member to an apparatus for scrubbing various surfaces including pool tile; and (b) a dispensing unit detachably mounted on the exterior surface of said pole handle for delivering cleaning fluid to said abrasion member.

Claim 24

Dependent Claim 146 words

A conversion assembly for use in combination with the body of a string trimmer of the type including an elongated pole handle having a substantially vertical lower portion and a slanted upper portion, a drive shaft mounted for rotation with said pole handle, a motor for rotating said drive shaft, a collar member mounted at the bottom of said drive shaft and rotatable with said drive shaft, and a connector element provided on said collar member for connection to a detachable lawn care accessory, said conversion assembly comprising: (a) an abrasion member for detachably mounting on said collar member in place of said lawn care accessory in order to connect said abrasion member to an apparatus for scrubbing various surfaces including pool tile; and (b) a dispensing unit detachably mounted on the exterior surface of said pole handle for delivering cleaning fluid to said abrasion member.

Claim 25

Dependent Claim 48 words

The conversion assembly of claim 21, in which said abrasion member comprises a substantially cylindrical brush for cleaning vertical surfaces, said brush having a plurality of bristles extending radially outwardly with respect to the longitudinal axis of said pole handle when said brush is mounted on said collar.

Claim 26

Dependent Claim 21 words

The conversion assembly of claim 21, in which said abrasion member comprises a pumice stone having a substantially cylindrical outer surface.

Claim 27

Dependent Claim 62 words

The conversion assembly of claim 19 in which said abrasion member comprises a brush for cleaning horizontal surfaces, said brush including a transverse body portion which extends substantially normally to the longitudinal axis of said pole handle when said brush is mounted on said collar, and a plurality of bristles which extend perpendicularly from said body portion in a substantially vertical direction.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1991-11-01	1992-05-02	1992-11-01	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1995-11-01	1996-05-02	1996-11-01	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1999-11-01	2000-05-02	2000-11-01	$7700.00	Window Closed / Lapsed

Apparatus for cleaning pool tile

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