Diamond bead coupling device

Claim 2

In an improved unitary coupling device adapted to be removably secured to the distal end of a relatively resilient flexible liquid discharge hose and to which means for filtering the liquid discharged from said hose can be removably attached, the improved device comprising a hub section having an axial bore therethrough adapted to receive and removably engage said hose distal end, an outer flange extending radially outwardly from said hub section, said hub section having a body portion above said outer flange adapted to support said filtering means, an inner flange extending radially inwardly of said bore adjacent the distal end thereof, and a plurality of spaced apart substantially diamond-shaped beads or lugs extending radially inwardly from the surface of said bore and disposed axially of said inner flange to engage and impress said hose distal end inserted within said bore and forced thereover.

Claim 3

The improved coupling device defined in claim 1, wherein said device is formed of a molded substantially rigid plastic material having substantially good memory characteristics.

Claim 4

The improved coupling device defined in claim 1, wherein said device is manually attachable to said hose end.

Claim 5

The improved coupling device defined in claim 1, wherein said hub section and its axial bore are substantially cylindrical in configuration.

Claim 6

The improved coupling device defined in claim 1, wherein said outer flange is substantially annular in configuration.

Claim 7

The improved coupling device defined in claim 1, wherein said inner flange is substantially annular in configuration.

Claim 8

The improved coupling device defined in claim 1, wherein said inner flange comprises discrete spaced apart segments of an annular flange.

Claim 9

The improved coupling device defined in claim 1, wherein said inner and outer flanges lie substantially in the same plane.

Claim 10

The improved coupling device defined in claim 1, wherein said inner and outer flanges lie in different planes.

Claim 11

The improved coupling device defined in claim 1, wherein said inner flange functions as a stop for and limits the telescoping insertion of said hose end in said hub section bore.

Claim 12

The improved coupling device defined in claim 1, wherein each of said diamond-shaped beads or lugs is defined by crossing vertical and horizontal medial lines forming quadrants extending at obtuse angles from the surface of said bore substantially to point, all said quadrants meeting substantially at the crosspoint of said vertical and horizontal lines.

Claim 13

The improved coupling device defined in claim 11, wherein said quadrants are planar and relatively clearly defined by said vertical and horizontal lines.

Claim 14

The improved coupling device defined in claim 1, wherein each of said diamond-shaped beads or lugs is defined by vertical and horizontal medial lines forming upper and lower pairs of quadrants extending at obtuse angles from the surface of said bore, the upper pair of said quadrants being disposed next adjacent each other about one vertical line, and the lower pair of said quadrants being disposed next adjacent each other about another vertical line, said vertical lines lying substantially in a plane, said lower pair of said quadrants being recessed toward said bore surface and inwardly from the horizontal line defining the distal edge of said upper pair of quadrants, whereby an undercut ledge is provided under said upper pair of quadrants at said horizontal lines and said ledge forms a three-sided point with said upper pair of quadrants.

Claim 15

The improved coupling device defined in claim 1, wherein each of said diamond-shaped beads or lugs is defined by crossing vertical and horizontal medial lines forming upper and lower arcuate pairs of quadrants extending from the surface of said bore substantially to a point, the upper pair of said quadrants having convexly curved surfaces, the lower pair of said quadrants having concavely curved surfaces, all said quadrants meeting substantially at the crosspoint of said vertical and horizontal lines.

Claim 16

The improved coupling device defined in claim 14, wherein said arcuate quadrants are relatively clearly defined by said vertical and horizontal lines.

Claim 17

In an improved filter device adapted to be removably secured to the distal end of a relatively resilient flexible liquid discharge hose for filtering the liquid discharged from said hose, the improved device comprising a coupling member adapted to be removably secured by manual attachment to said hose distal end and having a hub section having an axial bore therethrough adapted to receive and removably engage said hose distal end, an outer flange extending radially outwardly from said hub section, said hub section having a body portion above said outer flange adapted to support means for filtering the liquid discharged from said hose, an inner flange extending radially inwardly of said bore adjacent the distal end thereof, and a plurality of spaced apart substantially diamond-shaped beads or lugs extending radially inwardly from the surface of said bore and disposed axially of said inner flange to engage and impress said hose distal end inserted within said bore and forced thereover, and filter means removably secured upon said hub section above said outer flange.

Claim 18

In an improved filter device adapted to be removably secured to the distal end of a relatively resilient flexible liquid discharge hose for filtering the liquid discharged from said hose, the improved device comprising a coupling member adapted to be removably secured by manual attachment to said hose distal end and having a hub section having an axial bore therethrough adapted to receive and removably engage said hose distal end, an outer flange extending radially outwardly from said hub section, said hub section having a body portion above said outer flange adapted to support means for filtering the liquid discharged from said hose, an inner flange extending radially inwardly of said bore adjacent the distal end thereof, and a plurality of spaced apart substantially diamond-shaped beads or lugs extending radially inwardly from the surface of said bore and disposed axially of said inner flange to engage and impress said hose distal end inserted within said bore and forced thereover, and filter means removably secured upon said hub section above said outer flange.

Claim 19

The improved device defined in claim 16, wherein said filter means comprises a relatively porous container-shaped bag closed at one end and open at the other, said open end extending above said coupling outer flange, said bag being secured to and about said hub section by a drawstring passed through the portion of said bag adjacent said open end, whereby said filter bag depends from and over said outer flange.

Claim 20

The improved device defined in claim 16, wherein said filter means comprises a relatively porous container-shaped bag closed at one end and open at the other, said open end extending above said coupling outer flange, said bag being secured to and about said hub section by a twist tie wrapped about and over the portion of said bag adjacent said open end, whereby said filter bag depends from and over said outer flange.

Claim 21

The improved device defined in claim 16, wherein said filter means comprises a relatively porous container shaped bag closed at one end and open at the other, said open end extending above said coupling outer flange, said bag being secured to and about said hub section by an elastic band removably wrapped about and over the portion of said bag adjacent said open end, whereby said filter bag depends from and over said outer flange.

Claim 22

The improved device defined in claim 16, wherein said filter means comprises a relatively porous container-shaped bag closed at one end and open at the other, said open end extending above said coupling outer flange, said bag being secured to and about said hub section by an elastic band affixed to the portion of said bag adjacent said open end, whereby said filter bag depends from and over said outer flange.

Claim 23

The improved coupling device defined in claim 11, wherein the lengths of said medial veRtical and horizontal lines are substantially the same and the areas of said quadrants substantially the same.

Claim 24

The improved coupling device defined in claim 11, wherein the length of said medial vertical line is less than the length of said medial horizontal line and the quadrants are broader than they are high, to provide a broader contact area for said bead against axial retraction of said hose end portion from said hub section bore.

Claim 25

The improved coupling device defined in claim 13, wherein the length of said medial vertical line is less than the length of said medial horizontal line and the quadrants are broader than they are high, to provide a broader contact area for said bead against axial retraction of said hose end portion from said hub section bore.

Claim 26

The improved coupling device defined in claim 14, wherein the length of said medial vertical line is less than the length of said medial horizontal line and the quadrants are broader than they are high, to provide a broader contact area for said bead against axial retraction of said hose end portion from said hub section bore.