Self-lubricating fasteners
OwnerGregory E. Hannon, Charles Thomas Rosenmayer +2inventors
InventorsGregory E. Hannon, Charles Thomas Rosenmayer, David T. Zador, John E. Trouba
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Abstract
Self-lubricating fastener devices with interlocking rails or interlocking members of a polymer and a slip system additive with a roughening agent and lubricant dispersed throughout the polymer are provided. Methods for production of self-lubricating fastener devices and their use in liquid-resistant or liquid-proof articles are also provided. A particular advantage is the ability of the devices to repeatedly reestablish a self-lubricated surface, even after solvent cleaning.
Claims52
A self-lubricating fastener device comprising a polymer and a slip system additive dispersed throughout said polymer.
An interlocking rail for a fastener device, said rail comprising a polymer and a slip system additive dispersed throughout the polymer.
An interlocking rail for a fastener device comprising a surface, said surface having a surface roughness parallel to the rail of greater than 0.3 micrometers Ra.
An interlocking rail for a fastener device comprising a surface, said surface having a surface roughness parallel to the rail of greater than 0.5 micrometers Ra.
A self-lubricating fastener device comprising at least two rails wherein one rail comprises a polymer and a slip system additive dispersed throughout said polymer.
A self-lubricating fastener device comprising at least two rails wherein one rail comprises a polymer and a roughening agent dispersed throughout said polymer.
A fastener device comprising:
- (a) a first interlocking rail with a tongue portion, a groove portion and a tape portion;
- and
- (b) a second interlocking rail with a tongue portion, a groove portion and a tape portion;
- wherein the tongue portion of the first interlocking rail interlocks with the groove portion of the second interlocking rail and the tongue portion of the second interlocking rail interlocks with the groove portion of the first interlocking rail;
- and
- wherein at least one of the tongue portions and groove portions of one of the interlocking rails comprises a polymer and a slip system additive dispersed throughout the polymer.
A method of forming a self-lubricating fastener comprising the steps of:
- (a) combining or blending a polymer with a slip system additive;
- (b) extruding the resulting combination or blend into interlocking rails or interlocking members of polymer with slip system additive dispersed throughout;
- and
- (c) assembling the interlocking rails or interlocking members into a self-lubricating fastener.
A method of forming a self-lubricating fastener comprising the steps of:
- (a) combining or blending a polymer with a slip system additive;
- (b) extruding the resulting combination or blend and a polymer with no additional slip system additive into interlocking rails or interlocking members;
- and
- (c) assembling the interlocking rails or interlocking members into a self-lubricating fastener.
A method of forming a self-lubricating fastener comprising the steps of:
- (a) combining or blending a polymer with a roughening agent of a slip system additive;
- (b) extruding the resulting combination or blend of step (a) into a first interlocking rail or first set of interlocking members comprising polymer with roughening agent dispersed throughout;
- (c) combining or blending a polymer with a lubricant of a slip system additive;
- (d) extruding the resulting combination or blend of step (c) into a second interlocking rail or second set of interlocking members comprising polymer with lubricant dispersed throughout;
- and
- (e) assembling the first and second rails or first and second sets of interlocking members into a self-lubricating fastener.
A device comprising any of the structural features described herein and shown in the drawings forming part of the invention disclosure.
An interlocking rail for a fastener device, said rail comprising a polymer and a slip system additive dispersed throughout the polymer and having a strength to mass ratio of greater than 2.99 Nm/g.
Dependencies are inferred from the claim text.