What is claimed is:
1. A spray device for cleaning at least one optical surface having limited access thereto, said spray device comprising:
a fluid reservoir;
a nozzle assembly communicating with said fluid reservoir to deliver liquid spray to at least one optical surface; and
an absorbent to collect liquid residues from said liquid spray.
2. The spray device of claim 1, wherein said fluid reservoir includes a pump to deliver fluid to said nozzle assembly.
3. The spray device of claim 1, further including a cover tube having a first end and a second end, said nozzle assembly coupled to said first end of said cover tube and said fluid reservoir located adjacent to said second end of said cover tube.
4. The spray device of claim 3, said cover tube having an inner wall and an outer wall, said spray device further including a delivery tube, located inside said inner wall coaxial with said cover tube, said delivery tube coupled to said fluid reservoir to deliver fluid to said nozzle assembly.
5. The spray device of claim 1, wherein said nozzle assembly includes a shroud overlapping said first end of said cover tube, said shroud providing containment for a nozzle having a nozzle end including a shaped orifice, said delivery tube being connected to said nozzle to deliver fluid to said nozzle end to provide said liquid spray emitting from said nozzle end in a pattern according to said shaped orifice.
6. The spray device of claim 5, wherein said shroud includes a contact end having a seal to provide substantially fluid-tight contact between said spray device and the optical surface.
7. The spray device of claim 5, wherein said shaped orifice comprises an orifice selected from the group consisting of circular orifices, elliptical orifices, rectangular orifices, oblong orifices and combinations thereof.
8. The spray device of claim 5, wherein said nozzle assembly further includes a return channel to guide said liquid residues toward said absorbent mounted adjacent to said outer wall of at least a portion of said cover tube after application of fluid to at least one optical surface.
9. The spray device of claim 8, wherein said liquid residues collect in said absorbent after passing through drain holes formed in said at least a portion of said cover tube.
10. A portable, self-contained spray device for cleaning at least one optical surface, said spray device comprising:
a fluid reservoir:
a cover tube having an inner wall, an outer wall, a first end and a second end;
a nozzle assembly at said first end of said cover tube, said nozzle assembly including a seal to provide substantially fluid-tight contact between said spray device and the optical surface;
a delivery tube, located inside said inner wall coaxial with said cover tube, said delivery tube coupled to said fluid reservoir to direct fluid towards said nozzle assembly; and
an absorbent mounted adjacent to said outer wall of at least a portion of said cover tube to collect liquid residues after application of fluid to an optical surface.
11. The portable, self-contained spray device of claim 10, wherein said at least a portion of said cover tube has a plurality of drain holes formed therein to release said liquid residues for collection by said absorbent.
12. The portable, self contained spray device of claim 10, wherein said nozzle assembly includes a shroud overlapping said first end of said cover tube, said shroud providing containment for a nozzle having a nozzle end including a shaped orifice, said delivery tube being connected to said nozzle to deliver fluid, from said fluid reservoir, to provide said liquid spray emitting from said nozzle end in a pattern according to said shaped orifice.
13. The portable, self-contained spray device of claim 12, wherein said shaped orifice comprises an orifice selected from the group consisting of circular orifices, elliptical orifices, rectangular orifices, oblong orifices and combinations thereof.
14. The portable, self-contained spray device of claim 11, wherein said nozzle assembly further includes a return channel to direct said liquid residues for collection by said absorbent.
15. A spray device for cleaning at least one optical surface having limited access thereto, said spray device comprising:
a fluid reservoir;
a cover tube having an inner wall, an outer wall, a first end and a second end;
a nozzle assembly at said first end of said cover tube, said nozzle assembly including a seal to provide substantially fluid-tight contact between said spray device and the optical surface;
a delivery tube, located inside said inner wall coaxial with said cover tube, said delivery tube coupled to said fluid reservoir to direct fluid towards said nozzle assembly; and
an absorbent cartridge mounted adjacent to said outer wall of at least a portion of said cover tube to collect liquid residues after application of fluid to an optical surface, said absorbent cartridge comprising a detachable jacket surrounding an absorbent.
16. The spray device of claim 15, wherein said detachable jacket has openings formed therein to facilitate evaporation of liquid from said absorbent.
17. A process for cleaning at least one optical surface having limited access thereto said process comprising the steps of:
providing at least one optical surface having limited access thereto;
wiping a dry cleaner against the at least one optical surface; and
applying a liquid cleaner to the at least one optical surface using a liquid spray device comprising:
a fluid reservoir;
a nozzle assembly communicating with said fluid reservoir, said nozzle assembly adapted to reach the at least one optical surface to deliver liquid spray thereto; and
an absorbent to collect liquid residues from said liquid spray.
18. The process of claim 17, wherein said spray device further includes a cover tube having a first end and a second end, said nozzle assembly coupled to said first end of said cover tube and said fluid reservoir located adjacent to said second end of said cover tube.
19. The process of claim 18, wherein said cover tube has an inner wall and an outer wall, said spray device further including a delivery tube, located inside said inner wall coaxial with said cover tube, said delivery tube coupled to said fluid reservoir to deliver fluid to said nozzle assembly.
20. The process of claim 17, wherein said nozzle assembly includes a shroud overlapping said first end of said cover tube, said shroud providing containment for a nozzle having a nozzle end including a shaped orifice, said delivery tube being connected to said nozzle to deliver fluid to said nozzle end to provide said liquid spray emitting from said nozzle end in a pattern according to said shaped orifice.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A pneumatic tire, comprising:
a tread having a pair of crown main grooves formed respectively on both sides of a tire equator such that the crown main grooves are extending continuously in a tire circumferential direction, a pair of shoulder main grooves formed on tire axially outer sides of the crown main grooves such that the shoulder main grooves are extending continuously in the tire circumferential direction, a crown land section formed between the crown main grooves such that the pair of crown main grooves is sandwiching the crown land section, a pair of middle land sections formed between the crown main grooves and the shoulder main grooves such that each of the middle land sections is sandwiched between a respective one of the crown main grooves and a respective one of the shoulder main grooves, and a pair of shoulder land sections formed on tire axially outer sides of the shoulder main grooves,
wherein each of the middle land sections comprises a plurality of middle blocks and a plurality of middle inclined lateral grooves such that the middle inclined lateral grooves are inclining relative to a tire axial direction and connecting the respective one of the crown main grooves and the respective one of the shoulder main grooves, each of the shoulder land sections comprises a plurality of shoulder blocks and a plurality of shoulder inclined lateral grooves such that the shoulder inclined lateral grooves are inclining relative to the tire axial direction and connecting a respective one of the shoulder main grooves and a respective one of tread edges of the tread, and each of the middle inclined lateral grooves is positioned adjacent to a respective one of the shoulder blocks such that each of the middle inclined lateral grooves and the respective one of the shoulder blocks are sandwiching the shoulder main groove and overlapping in the tire circumferential direction and have a ratio LovLmg in a range of from 0.7 to 1.0, where Lov represents a tire circumferential overlapping length Lov, and Lmg represents a tire circumferential length Lmg of the middle inclined lateral grooves.
2. The pneumatic tire according to claim 1, wherein the plurality of middle inclined lateral grooves includes a plurality of first middle inclined lateral grooves and a plurality of second middle inclined lateral grooves formed alternately in the tire circumferential direction, each of the first middle inclined lateral grooves has a first groove communicating with the respective one of the crown main grooves and a second groove communicating with the respective one of the shoulder main groove and having a groove width which is smaller than a groove width of the first groove, and each of the second middle inclined lateral grooves has a third groove communicating with the respective one of the shoulder main grooves and a fourth groove communicating with the respective one of the crown main grooves and having a groove width which is smaller than a groove width of the third groove.
3. The pneumatic tire according to claim 1, wherein each of the shoulder inclined lateral grooves has a fifth groove connected to the respective one of the tread edges and a sixth groove communicating with the respective one of the shoulder main grooves and having a groove width which is smaller than a groove width of the fifth groove.
4. The pneumatic tire according to claim 1, wherein each of the shoulder inclined lateral grooves is positioned such that each of the shoulder inclined lateral grooves does not face a respective one of the middle inclined lateral grooves on the other side of the respective one of the shoulder main grooves.
5. The pneumatic tire according to claim 1, wherein the middle inclined lateral grooves and the shoulder blocks have a ratio LmgLsb in a range of from 0.4 to 0.8, where Lsb represents a tire circumferential length of the shoulder blocks.
6. The pneumatic tire according to claim 3, wherein each of the shoulder blocks has an edge portion bordered by the sixth groove and protruding in the tire circumferential direction such that the edge portion has a protruding length P which is less than 0.5 mm and a ratio PLsb in a range of from 0.1 to 0.4, where Lsb represents a tire circumferential length of the shoulder blocks.
7. The pneumatic tire according to claim 2, wherein each of the shoulder inclined lateral grooves has a fifth groove connected to the respective one of the tread edges and a sixth groove communicating with the respective one of the shoulder main grooves and having a groove width which is smaller than a groove width of the fifth groove.
8. The pneumatic tire according to claim 2, wherein each of the shoulder inclined lateral grooves is positioned such that each of the shoulder inclined lateral grooves does not face a respective one of the middle inclined lateral grooves on the other side of the respective one of the shoulder main grooves.
9. The pneumatic tire according to claim 2, wherein the middle inclined lateral grooves and the shoulder blocks have a ratio LmgLsb in a range of from 0.4 to 0.8, where Lsb represents a tire circumferential length of the shoulder blocks.
10. The pneumatic tire according to claim 2, wherein each of the shoulder blocks has an edge portion bordered by a respective one of the shoulder inclined lateral grooves and protruding in the tire circumferential direction such that the edge portion has a protruding length P which is less than 0.5 mm and a ratio PLsb in a range of from 0.1 to 0.4, where Lsb represents a tire circumferential length of the shoulder blocks.
11. The pneumatic tire according to claim 3, wherein each of the shoulder inclined lateral grooves is positioned such that each of the shoulder inclined lateral grooves does not face a respective one of the middle inclined lateral grooves on the other side of the respective one of the shoulder main grooves.
12. The pneumatic tire according to claim 3, wherein the middle inclined lateral grooves and the shoulder blocks have a ratio LmgLsb in a range of from 0.4 to 0.8, where Lsb represents a tire circumferential length of the shoulder blocks.
13. The pneumatic tire according to claim 1, wherein each of the shoulder blocks has an edge portion bordered by a respective one of the shoulder inclined lateral grooves and protruding in the tire circumferential direction such that the edge portion has a protruding length P which is less than 0.5 mm and a ratio PLsb in a range of from 0.1 to 0.4, where Lsb represents a tire circumferential length of the shoulder blocks.
14. The pneumatic tire according to claim 4, wherein the middle inclined lateral grooves and the shoulder blocks have a ratio LmgLsb in a range of from 0.4 to 0.8, where Lsb represents a tire circumferential length of the shoulder blocks.
15. The pneumatic tire according to claim 4, wherein each of the shoulder blocks has an edge portion bordered by a respective one of the shoulder inclined lateral grooves and protruding in the tire circumferential direction such that the edge portion has a protruding length P which is less than 0.5 mm and a ratio PLsb in a range of from 0.1 to 0.4, where Lsb represents a tire circumferential length of the shoulder blocks.
16. The pneumatic tire according to claim 5, wherein each of the shoulder blocks has an edge portion bordered by a respective one of the shoulder inclined lateral grooves and protruding in the tire circumferential direction such that the edge portion has a protruding length P which is less than 0.5 mm and a ratio PLsb in a range of from 0.1 to 0.4, where Lsb represents a tire circumferential length of the shoulder blocks.
17. The pneumatic tire according to claim 6, wherein the plurality of middle inclined lateral grooves includes a plurality of first middle inclined lateral grooves and a plurality of second middle inclined lateral grooves formed alternately in the tire circumferential direction, each of the first middle inclined lateral grooves has a first groove communicating with the respective one of the crown main grooves and a second groove communicating with the respective one of the shoulder main groove and having a groove width which is smaller than a groove width of the first groove, and each of the second middle inclined lateral grooves has a third groove communicating with the respective one of the shoulder main grooves and a fourth groove communicating with the respective one of the crown main grooves and having a groove width which is smaller than a groove width of the third groove.
18. The pneumatic tire according to claim 6, wherein each of the shoulder inclined lateral grooves is positioned such that each of the shoulder inclined lateral grooves does not face a respective one of the middle inclined lateral grooves on the other side of the respective one of the shoulder main grooves.
19. The pneumatic tire according to claim 6, wherein the middle inclined lateral grooves and the shoulder blocks have a ratio LmgLsb in a range of from 0.4 to 0.8, where Lsb represents a tire circumferential length of the shoulder blocks.
20. The pneumatic tire according to claim 18, wherein each of the shoulder inclined lateral grooves is positioned such that each of the shoulder inclined lateral grooves does not face a respective one of the middle inclined lateral grooves on the other side of the respective one of the shoulder main grooves.