Apparatus and method for cable connection retention

• US 6,619,976 B2
• Filed: 04/13/2001
• Issued: 09/16/2003
• Est. Priority Date: 04/13/2001
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Kunze, Richard J., Sanford, Craig A., Huetter, John P.
• Primary Examiner(s): Gilman, Alexander
• Application Number:
  US09/834,401
• Publication Number:
  US 20020151205A1
• Time in Patent Office: 886 Days
• Field of Search: 439/350, 439/351, 439/352, 439/353, 439/354, 439/357, 439/345
• US Class Current: 439/352
• CPC Class Codes: H01R 13/627 Snap or like fastening
• CPC Class Codes: H01R 13/6582 with resilient means for engaging mating connector

Abstract

An apparatus and method for preventing inadvertent disconnection of male and female electrical connectors is provided. In one principal type of method and apparatus, devices are configured to provide outside retaining forces to retention prongs of a female electrical connector, substantially restricting or preventing the retention prongs from moving toward an outer non-holding position after connecting with receiving portions in the male connector. In another principal type of method and apparatus, a female electrical connector includes modified retention prongs having a portion configured to enter and remain in surface holes of the male connector so that the male connector, once inserted, cannot be removed from the female connector without a user manipulating the modified retention prongs.

Claims

1. Apparatus for increasing strength of a connection between a first electrical connector and a second electrical connector having at least one retention prong for retaining the first connector, the at least one retention prong being flexible between an inner holding position and an outward non-holding position, the first connector having at least one receiving portion for receiving a portion of the retention prong when the retention prong is in its inner holding position, the apparatus comprising:

at least one restraining element disposed in a substantially fixed position relative to the at least one retention prong, said at least one restraining element being configured to contact the at least one retention prong and apply a continuous biasing force to the retention prong toward its inner holding position, said at least one restraining element comprising at least one flexible member formed into a casing surrounding at least a portion of the second connector, said flexible member being disposed adjacent to the retention prong, wherein said at least one restraining element provides resistance to connection and disconnection of said first electrical connector from said second electrical connector.

2. The apparatus of claim 1 wherein said at least one flexible member is formed by removing a portion of said casing to form a cutout portion that is adapted to flex to permit connection and disconnection of the first connector relative to the second connector.

3. The apparatus of claim 1 wherein the first and second electrical connectors are Universal Serial Bus connectors.

4. The apparatus of claim 1 wherein said restraining element comprises a pair of flexible members having contact members aligned with a pair of retention prongs and in continuous abutting contact with said pair of retention prongs to apply a biasing force to the retention prongs toward their inner holding positions.

5. The apparatus of claim 1 wherein said restraining element comprises upper and lower pairs of flexible members having a portion aligned with upper and lower pairs of retention prongs, and configured to continuously abuttingly contact said pairs of retention prongs to apply a biasing force to the retention prongs toward their inner holding positions.

6. Apparatus for increasing strength of a connection between a first electrical connector and a second electrical connector having at least one retention prong for retaining the first connector, the at least one retention prong being flexible between an inner holding position and an outer non-holding position, the first connector having at least one receiving portion for receiving a portion of the retention prong when the retention prong is in its inner holding position, the apparatus comprising:

a sliding restraining latch including at least two spaced-apart legs, said latch being slidable between a first position that permits the retention prong to move toward its outer non-holding position, and a second position in which the latch at least partially surrounds the second connector so that a portion of the second connector is between the two spaced-apart legs, and in which a portion of the at least two spaced-apart legs abuttingly contacts the at least one retention prong to substantially prevent the retention prong from moving toward its outer non-holding position.

7. The apparatus of claim 6 wherein said legs include inner surfaces and are connected together by a bridging portion, the inner surfaces of the legs having at least one slot portion and at least one tooth portion, and wherein, in said first position, said slot portion is aligned with a retention prong of said second connector, thereby allowing said retention prong to move toward its outer non-holding position, and in said second position, said tooth portion contacts said retention prong, thereby preventing said retention prong from moving toward its outer non-holding position.

8. The apparatus of claim 7 wherein said sliding restraining latch further comprises at least one post for facilitating the sliding of said sliding restraining latch.

9. The apparatus of claim 8 wherein said at least one post has a slot for insertion of a member for manipulating said sliding restraining latch.

10. The apparatus of claim 7 further comprising a locking mechanism for retaining said sliding restraining latch in one of said first and second positions.

11. Apparatus for increasing connection strength between a male electrical connector and a female electrical connector, the male connector having at least one surface hole, the apparatus comprising:

a retention prong formed with said female connector and being flexible between an inner holding position and an outer non-holding position, said retention prong having a rearward portion including a barbed projection angled rearwardly towards a back portion of the female connector, said barbed projection being adapted to insert at least partially into said surface hole when said male connector is inserted into said female connector and said retention prong is in its inner holding position, said retention prong being adapted to substantially prevent said male connector, once inserted, from being removed from said female connector;

said retention prong including a projection extending frontwardly and beyond a front of said female connector.

12. The apparatus of claim 11 wherein said projection comprises a tab connected to said retention prong, for allowing manipulation of said tab to move said rearward portion of said retention prong away from said surface hole and allowing said male connector to be disconnected from said female connector.

13. The apparatus of claim 12 wherein said retention prong contains a fulcrum wherein movement of the tab in one direction causes said rearward portion of said retention prong to move from said surface hole in another direction, thus allowing removal of said male connector.

14. The apparatus of claim 12 wherein said tab is integrally formed with said retention prong.

15. Apparatus for increasing connection strength between a male electrical connector having a first connector body and a female electrical connector having a second connector body for receiving the first connector body, the second connector body having at least one retention prong for retaining the first connector, the at least one retention prong being flexible between an inner holding position extending at least partially within said second connector body and an outward non-holding position, the first connector body having at least one receiving portion for receiving a portion of the retention prong when the retention prong is in its inner holding position, the male connector and female connector being Universal Serial Bus connectors, the apparatus comprising:

at least one restraining element configured to contact the at least one retention prong and apply a biasing force to the retention prong toward its inner holding position.

16. The apparatus of claim 15 wherein said restraining element comprises a flexible member formed into a casing substantially surrounding said female connector, said flexible member being configured to bias the retention prong toward the inner holding position.

17. The apparatus of claim 15 wherein said restraining element comprises a latch slidingly connected to said device, said latch including at least one leg having at least one projecting formation, said latch being slidably movable between a first position, wherein said projecting formation does not bias the retention prong toward the inner holding position, and a second position, wherein said projecting formation contacts said retention prong to substantially prevent said retention prong from flexing to its outer, non-holding position.

18. Apparatus for connecting to a male connector, the apparatus comprising:

a female electrical connector having at least one retention prong for retaining the male connector, the at least one retention prong being flexible between an inner holding position wherein a portion of the retention prong retains the male connector and an outward non-holding position;

a casing surrounding said female connector, said casing including at least one restraining element disposed in a substantially fixed position relative to the at least one retention prong, said at least one restraining element contacting the at least one retention prong and applying a continuous biasing force to the retention prong toward its inner holding position, said at least one restraining element comprising at least one flexible member formed into the casing of the device, said flexible member being disposed adjacent to the retention prong, wherein said at least one restraining element provides resistance to connection and disconnection of the male connector from said female connector.