US 3,979,799 AGranted

Interlocking attachment device

AssigneeDennison Manufacturing Company

InventorsFrancis G. Merser, Philip A. Kooistra, Gordon B. Lankton

Life of this patent

Estimating the term…

Loading patent…

Abstract

An attachment device comprises a filament having a normally laterally oriented bar at one end and a unitary hollow body member at its other end. The body member has a sidewall, an apertured end wall, a heat sealed end wall opposed thereto and a flange which projects outwardly from the sidewall and functions as a heat sink to permit heat sealing of the end wall without heat deformation of the apertured end wall and the portion of the sidewall adjacent thereto. The aperture in the end wall is large enough to receive the filament and the bar when they are in parallel orientation, but of a width smaller than the length of the bar so as to prevent the withdrawal of the bar from the hollow interior subsequent to insertion. An assembly of attachment devices suitable for use with an attaching mechanism comprises a plurality of such attachment devices and securing means interposed between and connected to the flanges to secure adjacent body members together.

Claims18

Dependent claims

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,

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/542,620Filed 20 Jan 1975 · continuation
Priority: 8 May 1974
Granted: 14 Sep 1976
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G09F 3/14
Fastening or securing by means not forming part of the material of the label itself: by strings, straps, chains, or wires
Y10T 24/505
Readily interlocking, two-part fastener requiring either destructive or tool disengagement: including additional fastener structure linking parts
Y10T 292/50
Seals: single piece, spring catch
G09F
Displaying