Ball and socket joint with internal stop

• US 5,449,206 A
• Filed: 01/04/1994
• Issued: 09/12/1995
• Est. Priority Date: 01/04/1994
• Status: Expired due to Term

• Current Assignee: Lockwood Products Incorporated
• Original Assignee: Lockwood Products Incorporated
• Inventors: Lockwood, Mark B.
• Primary Examiner(s): Nicholson, Eric K.
• Application Number:
  US08/177,197
• Time in Patent Office: 616 Days
• Field of Search: 285/261, 285/264, 285/166, 285/184, 138/120
• US Class Current: 285/261
• CPC Class Codes: F16L 11/18 Articulated hoses, e.g. composed of a series of rings
• CPC Class Codes: G02B 6/4461 Articulated
• CPC Class Codes: H02G 3/0475 formed by a succession of articulated units

Abstract

A first connector includes opposite ball and socket elements having a passageway formed therethrough. The socket element has a cavity formed therein for receiving a ball element of a second hose connector to form a hose assembly. A ring is disposed within the cavity for limiting pivotal movement of a ball element inserted therein to minimize the risk that the connectors, and thereby the hose assembly, will separate.

Claims

1. A connector comprising:

a body of a polymer material having first and second end portions and a longitudinal axis extending in the direction from the first to the second end portions, the body defining a passageway therethrough between the first and second end portions;

the body including a socket engaging end surface at the first end portion, the first end portion defining a stop receiving opening which is open through the socket engaging end surface and which is a portion of the passageway, the socket engaging end surface being the external surface of the first end portion of the body;

the body also including an internal socket receiving cavity or opening at the second end portion; and

the body including a stop projecting longitudinally from the body and into the internal socket receiving cavity, whereby when the socket engaging end surface of a first of said connectors is inserted into the internal socket receiving cavity of a second of said connectors, the stop of the second connector is inserted into the stop receiving opening of the first connector to limit the relative pivoting of the connectors.

2. A connector according to claim 1 in which the passageway extends through the stop.

3. A connector according to claim 2 in which the stop comprises an annular ring.

4. A connector according to claim 3 in which the cross sectional dimension of the annular ring is smaller than the cross sectional dimension of the stop receiving cavity.

5. A connector according to claim 4, in which the passageway has a cross sectional dimension at the first end portion which is sized larger than the cross sectional dimension of the annular stop.

6. A connector according to claim 3 wherein the socket engaging end surface has a chamfered ring engaging surface.

7. A connector according to claim 1 in which the socket engaging end surface is a smooth depression free and projection free curved end surface.

8. A hose connector assembly comprising:

a first connector having a first female portion, an opposite first male portion and a first longitudinal axis;

a second connector having a second female portion, an opposite second male portion and a second longitudinal axis, the second male portion having an interior wall which defines a longitudinally extending stop receiving opening;

the second male portion being sized for insertion into the first female portion to interconnect the first and second connectors with the first connector being free to pivot about the first longitudinal axis and relative to the second connector and the second connector being free to pivot about the second longitudinal axis and relative to the first connector, an annular flange disposed within the first female portion and positioned to extend into the stop receiving opening to engage the interior wall of the second male portion to limit the extent of pivoting movement of the second longitudinal axis out of alignment with the first longitudinal axis when the second male portion is disposed within the first female portion.

9. A connector assembly according to claim 8 wherein the first and second connectors each have a passageway formed therethrough, the passageways being in communication through the annular flange.

10. A connector assembly according to claim 8 wherein the annular flange has an exterior surface and the second male portion has a chamfered surface which is positioned to abut the exterior surface of the annular flange as the second connector is pivoted relative to the first connector to thereby limit the extent to which the connectors pivot relative to each other.

11. A connector assembly according to claim 8 wherein the connectors are made of a non-electrically conductive polymer material.

12. A plurality of at least three connectors which interconnect to form an assembly of connectors, each connector comprising:

a body with first and second end portions;

the body including a single external socket engaging surface at the first end portion and a single internal socket defining cavity at the second end portion, the first end portion including a stop receiving passageway which communicates with the socket defining cavity to provide an internal passageway from the first to the second end portions, the socket defining cavity of each connector being sized to pivotally receive the socket engaging surface of another connector so as to interconnect the plurality of connectors, and each connector also including a stop projecting into the interior of the socket defining cavity, the stop of said each connector projecting into the stop receiving passageway of an adjoining connector when interconnected to limit the relative pivoting of the interconnected connectors, the internal passageways of a plurality of interconnected connectors forming a hose or conduit.

13. Connectors according to claim 12 in which respective socket engaging surfaces are sized to snap fit into the respective socket defining cavities to interconnect the plurality of connectors.

14. Connectors according to claim 12 which have a longitudinal axis extending in the direction from the first to second end portions, the stop limiting the extent to which the interconnected connectors pivot out of alignment of their respective longitudinal axes.

15. Connectors according to claim 12 wherein each stop comprises a single flange projecting into the interior of the socket defining cavity and wherein the first end portion of the body includes a flange engaging surface positioned to engage the flange as the limit of relative pivoting of the interconnected connectors is reached.

16. Connectors according to claim 15 in which each stop comprises an annular flange.

17. Connectors according to claim 16 in which each stop is in the form of a right cylindrical ring.