Mechanical and/or electrical connector with axial-pull apparatus and methods

• US 9,608,346 B2
• Filed: 12/15/2014
• Issued: 03/28/2017
• Est. Priority Date: 02/21/2008
• Status: Active Grant

• Current Assignee: Melni, LLC
• Original Assignee: Melni, LLC
• Inventors: Melni, Mark L.
• Primary Examiner(s): Duverne, Jean F
• Application Number:
  US14/571,284
• Publication Number:
  US 20150200471A1
• Time in Patent Office: 834 Days
• Field of Search: 439/271
• US Class Current: 1/1
• CPC Class Codes: H01R 11/11 End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member H01R11/01 takes precedence
• CPC Class Codes: H01R 11/12 End pieces terminating in an eye, hook, or fork
• CPC Class Codes: H01R 11/28 End pieces consisting of a ferrule or sleeve
• CPC Class Codes: H01R 13/22 Contacts for co-operating by abutting
• CPC Class Codes: H01R 13/5205 Sealing means between cable and housing, e.g. grommet H01R13/5221 takes precedence
• CPC Class Codes: H01R 4/12 by twisting
• CPC Class Codes: H01R 4/4872 axially compressed to retain wire end
• CPC Class Codes: H01R 4/489 spring force increased by screw, cam, wedge, or other fastening means
• CPC Class Codes: H01R 4/56 one conductor screwing into another
• CPC Class Codes: H01R 9/11 End pieces for multiconductor cables supported by the cable and for facilitating connections to other conductive members , e.g. for liquid cooled welding cables
• CPC Class Codes: Y10T 29/49204 Contact or terminal manufacturing

Abstract

A mechanical and/or electrical connector grips onto one or more members inside a hollow passageway of a spiral connector by means of the spiral, or a portion of the spiral being pulled axially to elongate the spiral/spiral-portion, which consequently reduces the diameter of the passageway. The reduction in the diameter of the passageway causes the spiral/spiral-portion to tighten/squeeze/grip on or around the member(s) inside the passageway, to retain the member(s) inside the passageway. Thus, the spiral/spiral-portion mechanically connects the inserted member(s) to each other and/or to another object to which the spiral/spiral-portion is mechanically connected. For example, members inserted into opposite ends of the passageway, or multiple members inserted together into one end of the passageway, will be mechanically connected. The spiral/spiral-portion may be used to mechanically connect one or more members inserted into one, or optionally two ends of the passageway, to a fastener that is connected to or fixed to another object, for example, a construction or other utilitarian element. Adjustment systems may be included to length, shorten, pivot or swing portions of the connector for improved orientation and/or tension of connect members.

Claims

1. A connector comprising:

a spiral connector comprising;

a spiral having an internal passageway and the spiral being movable from a relaxed configuration having a relaxed diameter of said passageway to a tightened configuration having a tightened diameter of said passageway that is smaller than said relaxed diameter;

multiple elongated members inserted into said spiral;

a housing connected to the spiral and adapted to tighten the spiral to said tightened configuration so that said elongated members are retained in the passageway;

wherein the housing is adapted to tighten the spiral by comprising a housing sleeve extending around the spiral and fixed to a securement region of the spiral, and a tensioner threadably engaged with a threaded region of the spiral, wherein rotation of the tensioner, relative to the threaded region of the spiral, toward the housing sleeve and with the tensioner abutting against the housing sleeve, pulls the threaded region of the spiral axially away from said securement region of the spiral to axially-lengthen the spiral and tighten the spiral into said tightened configuration.

2. The connector as in claim 1, wherein the spiral has a second threaded region and the housing further comprises a second tensioner threadably engaging said second threaded region for tightening the spiral near said second threaded region.

3. The connector as in claim 1, wherein the tensioner comprises a bore for insertion of the elongated members into the spiral, and the housing sleeve comprises an open end for axially-pulling the threaded region of the spiral out of the housing sleeve.

4. The connector as in claim 1, further comprising a fastener connected to the housing sleeve for connecting the housing sleeve to a construction or utilitarian object.

5. The connector as in claim 4, further comprising a turnbuckle between the housing sleeve and the fastener adapted to lengthen or shorten the connector.

6. The connector as in claim 1, wherein said housing comprise a latch system for retaining said tensioner in a position wherein said spiral is in the tightened configuration, and wherein said latch system comprises the tensioner being forced against the housing sleeve to prevent the tensioner from rotating in a direction that loosens the spiral to said relaxed configuration.

7. The connector as in claim 1, wherein said housing comprise a latch system for retaining said housing in a position wherein said spiral is in the tightened configuration, and wherein said latch system comprises a lock-nut threadably installed on the threaded region of the spiral with the tensioner between the housing sleeve and the lock-nut, wherein the lock-nut is threadably tightened against the tensioner to prevent the tensioner from rotating in a direction that loosens the spiral to said relaxed configuration.

8. The connector of claim 1, wherein said spiral comprises two spiral portions at or near opposite ends of a tube and said securement region of the spiral is in between the two spiral portions.

9. The connector of claim 8, wherein the elongated members are inserted into opposite open ends of the spiral.

10. The connector of claim 1, wherein the elongated members are inserted into a single end of the spiral.

11. The connector of claim 1, comprising a second spiral connector and a turnbuckle between the two spiral connectors.

12. The connector of claim 1, further comprising a fastener connected to the housing sleeve for connecting the housing sleeve to a construction or utilitarian object, and a pivot system to pivot the spiral connector to various positions relative to the fastener, for adjusting the angle of the spiral connector longitudinal axis relative to said construction or utilitarian object.

13. The connector of claim 1, wherein said spiral and said elongated members are electrically-conductive so the elongated members are electrically-connected to the spiral and to each other.

14. The connector of claim 1, wherein the spiral is formed by two spiral cuts circling a tube 180 degrees apart from each other.

15. The connector of claim 1, wherein the elongated members are core members of a first multi-layered cable and core members of a second multi-layered cable, and the spiral is a core-connection spiral wherein the core members of said first and second multi-layered cables extend into opposite ends of, and are captured in the spiral when the spiral is tightened, and wherein the connector further comprises a first end spiral and a second end spiral near first and second ends of said core-connection spiral, wherein said first and second end spirals are each adapted to capture outer strands of the first and second multi-layered cables respectively, and wherein the connector further comprises an outer sleeve system that extends around and along the housing sleeve associated with the core-connection spiral to connect the first and second end spirals.

16. A connector comprising:

a spiral having a longitudinal axis and an internal passageway, the spiral being movable from a relaxed configuration having a relaxed diameter of said internal passageway to a tightened configuration having a tightened diameter of said internal passageway that is smaller than said relaxed diameter;

multiple elongated members inserted into said spiral; and

a housing comprising a housing sleeve connected to a securement region of the spiral and a first tensioner threadably connected to a first threaded region of the spiral, the housing being adapted to tighten the spiral to said tightened configuration by the first tensioner being rotatable on the first threaded region while the first tensioner abuts against the housing sleeve, to pull the first threaded region axially away from the housing sleeve and the securement region to pull the spiral into the tightened configuration to retain said elongated members in the internal passageway.

17. The connector as in claim 16, wherein the tensioner comprises a bore for insertion of the elongated members into the spiral, and the housing sleeve comprises an open end for axially-pulling the threaded region of the spiral out of the housing sleeve.

18. The connector as in claim 16, further comprising a latch system for retaining said tensioner in a position wherein said spiral is in the tightened configuration, and wherein said latch system is selected from a group consisting of the tensioner being forced against the housing sleeve to prevent the tensioner from rotating in a direction that loosens the spiral to said relaxed configuration, and a lock-nut threadably installed on the threaded region of the spiral with the tensioner between the housing sleeve and the lock-nut wherein the lock-nut is threadably tightened against the tensioner to prevent the tensioner from rotating in a direction that loosens the spiral to said relaxed configuration.

19. The connector of claim 16, wherein said spiral and said elongated members are electrically-conductive so the elongated members are electrically-connected to the spiral and to each other.

20. A connector comprising:

a tubular spiral unit having a central securement region, and a first end and an opposite second end, each of the first end and the second end comprising spiral coils and a threaded region, the spiral unit having a longitudinal axis and an internal passageway and being movable from a relaxed configuration having a relaxed diameter of said internal passageway to a tightened configuration having a tightened diameter of said internal passageway that is smaller than said relaxed diameter;

multiple elongated members inserted into said internal passageway; and

a housing being adapted to tighten the spiral unit to said tightened configuration, to retain the elongated members in the spiral unit, by;

the housing comprising a housing sleeve connected to a securement region of the spiral and a first tensioner threadably connected to said first end, the first tensioner being rotatable on the first end while abutting against the housing sleeve, to pull the spiral coils of the first end axially away from the housing sleeve and the securement region; and

by the connector further comprising a second tensioner abutting against the housing sleeve and threadably rotatable on said second end to pull the spiral coils of the second end axially away from the housing sleeve and the securement region.