Interlocking attachment device

Claim 2

An attachment device comprising 1. a filament, 2. a unitary hollow body member connected to said filament adjacent one end thereof, said body member comprising i. a sidewall defining a hollow interior for said body member, ii. an end wall having an aperture therethrough leading into said hollow interior, said hollow interior having a greater width than said aperture, iii. a sealed end wall opposed to said apertured end wall and connected thereto by said sidewall, and iv. a flange projecting ouwardly from said sidewall and configured and dimensioned to dispose an appreciable fraction of its mass and exposed surface area substantially outwardly of said sidewall, thereby to function as a heat sink and to permit heat sealing of said end wall without heat deformation of said apertured end wall and the portion of said sidewall adjacent thereto, and 3. a normally at least partially laterally oriented bar resiliently connected to said filament adjacent the other end thereof, said bar having i. a length greater than the maximum width of said aperture, and ii. a thickness such that when said bar is oriented in a direction generally parallel to said filament, said bar and said filament are passable axially through said aperture and receivable in said hollow interior; and when said bar within said hollow interior is oriented in a direction other than essentially parallel to the axis of said aperture, said bar is engageable by said apertured end wall to maintain said bar within said hollow interior,

Claim 3

The attachment device of claim 1 wherein said filament, said bar and said body member comprise a unitary piece of thermoplastic material.

Claim 4

The attachment device of claim 2 wherein said thermoplastic material is nylon.

Claim 5

The attachment device of claim 1 wherein said flange is disposed on said sidewall closer to said sealed end wall than to said apertured end wall.

Claim 6

The attachment device of claim 4 wherein said flange covers an entire peripheral section of said sidewall.

Claim 7

The attachment device of claim 4 wherein said flange projects outwardly from said sidewall to substantially varying levels.

Claim 8

The attachment device of claim 1 wherein said flange extends over an entire peripheral section of said sidewall.

Claim 9

The attachment device of claim 7 wherein said flange projects outwardly from said sidewall to substantially varying levels.

Claim 10

The attachment device of claim 1 wherein said flange projects outwardly from said sidewall to substantially varying levels.

Claim 11

The attachment device of claim 1 wherein said filament is connected to said body member by said flange.

Claim 12

The attachment device of claim 1 wherein said flange extends over an entire peripheral section of said sidewall closer to said sealed end wall than to said apertured end wall and projects outwardly from said sidewall to substantially varying levels and connects with said filament to said body member.

Claim 13

An assembly of a plurality of attachment devices, each of said attachment devices comprising 1. a filament, 2. a unitary hollow body member connected to said filament adjacent one end thereof, said body member comprising i. a sidewall defining a hollow interior for said body member, ii. an end wall having an aperture therethrough leading into said hollow interior, said hollow interior having a greatr width than said aperture, iii. a seald end wall opposed to said apertured end wall and connected thereto by said sidewall, and iv. a flange projecting outwardly from said sidewall and configured and dimensioned to dispose an appreciable fraction of its mass and exposed surface area substantially outwardly of said sidewall, thereby to function as a heat sink and to permit heat sealing of said end wall without deformation of said apertured end wall and the portion of said sidewall adjacent thereto, and 3. a normally at least partially laterally oriented bar resiliently connected to said filament adjacent the other end thereof, said bar having i. a length greater than the maximum width of said aperture, and ii. a thickness such that when said bar is oriented in a direction generally parallel to said filament, said bar and said filament are passable axially through said aperture and receivable in said hollow interior; and when said bar within said hollow interior is oriented in a directon other than essentially parallel to the axis of said aperture, said bar is engageable by said apertured end wall to maintain said bar within said hollow interior, said assembly further including securing means interposed between and connected to said flanges to secure said body members together.

Claim 14

An assembly of a plurality of attachment devices, each of said attachment devices comprising 1. a filament, 2. a unitary hollow body member connected to said filament adjacent one end thereof, said body member comprising i. a sidewall defining a hollow interior for said body member, ii. an end wall having an aperture therethrough leading into said hollow interior, said hollow interior having a greatr width than said aperture, iii. a seald end wall opposed to said apertured end wall and connected thereto by said sidewall, and iv. a flange projecting outwardly from said sidewall and configured and dimensioned to dispose an appreciable fraction of its mass and exposed surface area substantially outwardly of said sidewall, thereby to function as a heat sink and to permit heat sealing of said end wall without deformation of said apertured end wall and the portion of said sidewall adjacent thereto, and 3. a normally at least partially laterally oriented bar resiliently connected to said filament adjacent the other end thereof, said bar having i. a length greater than the maximum width of said aperture, and ii. a thickness such that when said bar is oriented in a direction generally parallel to said filament, said bar and said filament are passable axially through said aperture and receivable in said hollow interior; and when said bar within said hollow interior is oriented in a directon other than essentially parallel to the axis of said aperture, said bar is engageable by said apertured end wall to maintain said bar within said hollow interior, said assembly further including securing means interposed between and connected to said flanges to secure said body members together.

Claim 15

An attachment device comprising 1. a filamentary member, 2. a hollow body member at one end of said filamentary member, 3. a head at another end of said filamentary member for insertion into said hollow body member, and 4. means formed on said body member for permitting the heat sealing of one end thereof without deformation of the other end thereof.

Claim 16

An attachment device comprising 1. a filamentary member, 2. a hollow body member at one end of said filamentary member, 3. a head at another end of said filamentary member for insertion into said hollow body member, and 4. means formed on said body member for permitting the heat sealing of one end thereof without deformation of the other end thereof.

Claim 17

The attachment device of claim 13 wherein the heat sealing means comprises a flange.

Claim 18

The attachment device of claim 14 wherein said flange is disposed on said body member closer to the end to be sealed than to the other end thereof.

Claim 19

The attachment device of claim 14 wherein said flange covers an entire peripheral section of said body member.

Claim 20

The attachment device of claim 14 wherein said flange projects outwardly from said body member.

Claim 21

The attachment device of claim 14 wherein said filamentary member is connected to said body member by said flange.