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US3768227A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of dissipating static electricity in packaging

Assignee: Individual
•
Filing: 1970-09-16
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Granted: 1973-10-30
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Expires: 1990-09-16
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Abstract

Abstract A method for the dissipation of, or for preventing the accumulation of, a static charge of electricity resulting from friction between two contacting materials comprising the steps of positioning an electrical conductor having two or more ends, or a plurality of said conductors, between said contacting materials and connecting one end of said conductor to the positive pole of an e.m.f. source and connecting the negative pole of the e.m.f. source to the ground.

Inventors

  • 👤 R Grisell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 12:17
CPC Classifications
B; B65; B65B; B65B61/00; H; H05; H05F; H05F3/00

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 190 words
A method of preventing accumulation of static electricity in the method of packaging an article by encapsulating said article in cellular plastic material by the steps of enclosing said article in a flexible plastic sheet or envelope, providing a vent from the interior of said enclosed article extendable to the exterior of said encapsulating cellular plastic material, placing said wrapped article in a container spaced from the bottom, sides, and top thereof, and injecting a cellular plastic forming material into said container so that said cellular plastic surrounds and encapsulates said wrapped article, comprising the step of positioning an electrical conductor, or a plurality thereof, of approximately the same length as said article in a manner such that about one-half the length of said conductor is within the enclosure formed by said plastic sheet or envelope and in contact therewith and the remaining half of said conductor is outside of said enclosure and in contact with the plastic sheet or envelope and connecting said conductor to the positive terminal of an electromotive force source having a positive and a negative terminal and connecting the said negative terminal to a ground.
Claim 2
Independent Claim 190 words
A method of preventing accumulation of static electricity in the method of packaging an article by encapsulating said article in cellular plastic material by the steps of enclosing said article in a flexible plastic sheet or envelope, providing a vent from the interior of said enclosed article extendable to the exterior of said encapsulating cellular plastic material, placing said wrapped article in a container spaced from the bottom, sides, and top thereof, and injecting a cellular plastic forming material into said container so that said cellular plastic surrounds and encapsulates said wrapped article, comprising the step of positioning an electrical conductor, or a plurality thereof, of approximately the same length as said article in a manner such that about one-half the length of said conductor is within the enclosure formed by said plastic sheet or envelope and in contact therewith and the remaining half of said conductor is outside of said enclosure and in contact with the plastic sheet or envelope and connecting said conductor to the positive terminal of an electromotive force source having a positive and a negative terminal and connecting the said negative terminal to a ground.
Claim 3
Dependent Claim 25 words
The method of claim 1 wherein the positive terminal of said e.m.f. source is connected to the end of said conductor outside of said enclosure.
Claim 4
Dependent Claim 24 words
The method of claim 1 wherein the positive terminal of said e.m.f. source is connected to the end of said conductor within said enclosure.
Claim 5
Dependent Claim 15 words
The method of claim 1 wherein the said e.m.f. source is a dry cell battery.
Claim 6
Independent Claim 112 words
A method of dissipating or preventing the accumulation of a static charge of electricity in a process for molding plastics and resins by injecting a moldable plastic into a mold lined with a mold release agent, comprising the steps of positioning an electrical conductor having two or more ends in contact with said mold release agent and contactable with said injected moldable plastic, and connecting one end of said conductor to the positive pole of an e.m.f. source, and connecting the negative pole of said e.m.f. source to a ground, during the steps of injecting said mold with said plastic, effecting the molding thereof, and removing said molded plastic from said mold.
Claim 7
Independent Claim 112 words
A method of dissipating or preventing the accumulation of a static charge of electricity in a process for molding plastics and resins by injecting a moldable plastic into a mold lined with a mold release agent, comprising the steps of positioning an electrical conductor having two or more ends in contact with said mold release agent and contactable with said injected moldable plastic, and connecting one end of said conductor to the positive pole of an e.m.f. source, and connecting the negative pole of said e.m.f. source to a ground, during the steps of injecting said mold with said plastic, effecting the molding thereof, and removing said molded plastic from said mold.

References Cited (Backward Citations)

US1275585A Cited
US3068511A Cited
US3201911A Cited
US3532932A Cited
US3572499A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-29 1977-04-30 1977-10-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-29 1981-04-30 1981-10-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-29 1985-04-30 1985-10-30 $7700.00 Window Closed / Lapsed

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