Ruggedized package for electronic components and the like

• US 3,909,504 A
• Filed: 11/05/1973
• Issued: 09/30/1975
• Est. Priority Date: 11/05/1973
• Status: Expired due to Term

• Current Assignee: Sidney Browne
• Original Assignee: Sidney Browne
• Inventors: Browne, Sidney
• Primary Examiner(s): Smith, Jr., David
• Application Number:
  US05/412,752
• Time in Patent Office: 694 Days
• Field of Search: 174/52PE 264/272 206/497,328,331 317/99,11R 53/3R,3S
• US Class Current: 174/524
• CPC Class Codes: H05K 5/064 sealed by potting, e.g. waterproof resin poured in a rigid casing

Abstract

A temperature, moisture and shock-resistant package for electronic components includes a polyethylene bag surrounding the components. Wiring leads from the components are polyethyleneshielded and the bag opening is heat-sealed about the wiring. The leads externally of the bag are spliced and soldered to corresponding leads shielded with polyvinylchloride (PVC). The sealed bag is placed between polystyrene boards which are tied together about the bag, the boards and bag being placed in a cylindrical PVC tube. Catalyst-responsive foam fills the remainder of the tube, and PVC end caps are PVC-welded at the ends of the PVC tube. The PVC-shielded leads are run through holes in one of the end caps after being knotted inside the tube. The knots are adhesively secured to the inside surface of the end cap with PVC cement which both prevents the leads from being pulled loose and seals the wiring egress holes in the end cap.

Claims

1. A RUGGEDIZED WEATHER PROOF COMPONENT PACKAGE COMPRISING:

A HOLLOW POLYVINYLCHLORIDE CASING SEALED AT ITS JOINTS BY A POLYVINYLCHLORID WELD, AN INTEGRAL SUB-ASSEMBLY INCLUDING A POLYETHYLENE BAG DISPOSED INSIDE SAID CASING SAID BAG BEING HEAT SEALED AND CONTAINING THE PACKAGED COMPONENTS AND PLASTIC MATERIAL DISPOSED INSIDE SAID CASING AND FILLING THE VOLUME THEREIN WHICH IS UNOCCUPIED BY SAID INTEGAL SUB-ASSEMBLY WHEREIN THE COMPONENTS BEING PACKAGED INCLUDE ELECTRICAL APPARATUS WHICH REQUIRES WIRE LEADS TO BE PASSED FROM INSIDE SAID POLYETHYLENE BAG TO OUTSIDE SAID PACKAGE SAID PACKAGE FUTHER COMPRISING;

POLYETHYLENE SHIELDING ABOUT THE WIRE LEADS EXTENDING THROUGH SAID POLYETHYLENE BAG SAID POLYETHYLENE SHIELDING BEING HEAT SEALED TO SAID BAG AT THE POINT OF PASSAGE THERETHROUGH.

2. The package according to claim 1 wherein said wire leads are knotted externally of said bag at a location proximate the interior surface of said casing before extending through suitably provided openings in said casing, the knotting being larger than said openings.

3. The package according to claim 2 wherein the knotted portions of said wire leads are adhesively secured to the interior surface of said casing with polyvinylchloride cement of sufficient quantity to seal the openings in said casing.

4. The package according to claim 3 wherein the knotted portions of said wire leads and the wire lead portions extending through said openings are shielded with polyvinylchloride.

5. The package according to claim 4 wherein said electrical apparatus comprises a circuit disposed on two printed circuit boards mounted in parallel spaceD relation, said package further comprising at least two light weight rigid board members forming part of said integral sub-assembly and disposed outside said polyethylene bag adjacent and parallel to respective printed circuit boards.

6. A ruggedized weather proof component package comprising:

a hollow polyvinylchloride casing sealed at its joints by a polyvinylchloride weld;

an integral sub-assembly including a polyethylene bag disposed inside said casing, said bag being heat sealed and containing the packaged components; and

plastic material disposed inside said casing and filling the volume therein which is unoccupied by said integral sub-assembly;

wherein the components being packaged include electrical apparatus which requires wire leads to be passed from said apparatus to outside said package through suitably provided openings in said casing, said package further comprising;

polyvinylchloride shielding for at least the portions of the wire leads which pass through said openings, the polyvinylchloride-shielded portions of said wire leads being knotted inside said casing proximate said openings, said knotting being larger than said openings to prevent removal of said wire leads from said apparatus by pulling on said wire leads from outside said casing;

wherein said knotted polyvinylchloride-shielded portions of said wire leads are adhesively secured to the interior surface of said casing at said openings by polyvinylchloride cement in sufficient quantity to seal said openings about said wire leads.

7. A ruggedized weather proof component package comprising:

a hollow polyvinylchloride casing sealed at its joints by a polyvinylchloride weld;

an integral sub-assembly including a polyethylene bag disposed inside said casing, said bag being heat sealed and containing the packaged components;

plastic material disposed inside said casing and filling the volume therein which is unoccupied by said integral sub-assembly;

wherein the components being packaged include electrical apparatus which requires wire leads to be passed from said apparatus to outside said package through suitably provided openings in said casing; and

means for sealing said openings in said casing about said wire leads while securing said wire leads to said casing.

8. The package according to claim 7 further comprising:

polyvinylchloride shielding for at least the portions of the wire leads which pass through said openings, the polyvinylchloride-shielded portions of said wire leads being knotted inside said casing proximate said openings, said knotting being larger than said openings to prevent removal of said wire leads from said apparatus by pulling on said wire leads from outside said casing.

9. The package according to claim 8 wherein said means for sealing includes polyvinylchloride cement filling said openings in said casing about said wire leads and said knotting.