Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
184 words
A vacuum cleaning tool apparatus for attachment to a compressed air supply comprising a curved tube having an open distal end, a relatively straight and relatively long axially extending portion leading inward from the distal end, a curved portion extending downward from the straight portion remote from the distal end, the curved portion terminating in a proximal end, an air supply line connected to the tube at an inside of the curved portion near an intersection with the straight portion for directing compressed air from a supply into the tube toward the outside of the curved portion in a direction away from the distal end and toward the proximal end for forcing the compressed air from the supply through the proximal end of the tube, entraining fluid within the tube and carrying entrained fluid out through the proximal end, thereby creating a reduced pressure near an intersection of the curved and straight tube portions for causing fluid to flow into the straight tube through the open distal end, thereby entraining materials and flowing materials into the curved portion and out of the proximal end.
Claim 2
Dependent Claim
184 words
A vacuum cleaning tool apparatus for attachment to a compressed air supply comprising a curved tube having an open distal end, a relatively straight and relatively long axially extending portion leading inward from the distal end, a curved portion extending downward from the straight portion remote from the distal end, the curved portion terminating in a proximal end, an air supply line connected to the tube at an inside of the curved portion near an intersection with the straight portion for directing compressed air from a supply into the tube toward the outside of the curved portion in a direction away from the distal end and toward the proximal end for forcing the compressed air from the supply through the proximal end of the tube, entraining fluid within the tube and carrying entrained fluid out through the proximal end, thereby creating a reduced pressure near an intersection of the curved and straight tube portions for causing fluid to flow into the straight tube through the open distal end, thereby entraining materials and flowing materials into the curved portion and out of the proximal end.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 further comprising axially oriented and radially expanded collection means attached to the proximal end.
Claim 4
Dependent Claim
47 words
The apparatus of claim 2 wherein the collection means comprises a porous debris-catching sheath having a narrow portion surrounding the proximal end of the tube, and clamping means surrounding the narrow portion and securing the narrow portion of the sheath to the proximal end of the tube.
Claim 5
Dependent Claim
40 words
The apparatus of claim 3 further comprising an opening in a side of an end of the sheath remote from the narrow portion and a resealable closure connected to the opening and closing the opening during use of the apparatus.
Claim 6
Dependent Claim
78 words
The apparatus of claim 2 wherein the air supply tube comprises a rigid tube extending generally parallel to the straight portion and opening into the distal end curved portion beneath the straight portion for directing air into the curved portion, parallel to the straight portion and impinging air on the opposite wall of the curved portion, thereby forming a cone which draws air through the straight portion down into the curved portion and out through the proximal end.
Claim 7
Dependent Claim
61 words
The apparatus of claim 5 wherein the rigid tube further has a curved portion, curving downward beneath the straight portion and a lower portion spaced further downward from the straight portion, and wherein the tube is anchored to the straight portion and to the curved portion of the main tube, thereby forming a loop for inserting fingers when holding the tool.
Claim 8
Dependent Claim
42 words
The apparatus of claim 6 further comprising a downward extending portion of the supply tube extending generally parallel to the main curved tube and control valve means connected to the downward extending portion for controlling supply air to the air supply tube.
Claim 9
Dependent Claim
17 words
The apparatus of claim 7 further comprising a flexible air supply line connected to the control valve.
Claim 10
Dependent Claim
64 words
The apparatus of claim 1 further comprising a stretchable, flexible sleeve fitting over the distal end, and extending outward therefrom, a short cylinder of tubing having an outer dimension commensurate with an outer dimension of the distal end, the short tubing being positioned within the sleeve and an extension tube connected within the short tubing and extending outward therefrom away from the distal end.
Claim 11
Dependent Claim
34 words
The apparatus of claim 9 further comprising a short cylindrical tubing mounted on the extension tube at an end remote from its first end, for receiving a sleeve for connecting further extensions and attachments.