Two piece molded female coupling

• US 6,231,089 B1
• Filed: 03/10/1999
• Issued: 05/15/2001
• Est. Priority Date: 03/10/1999
• Status: Expired due to Term

• Current Assignee: Colder Products Company (Dover Corporation)
• Original Assignee: Colder Products Company (Dover Corporation)
• Inventors: DeCler, Charles Peter, Meyer, David W.
• Primary Examiner(s): Luu, Teri Pham
• Application Number:
  US09/265,761
• Time in Patent Office: 797 Days
• Field of Search: 285/317, 285/23, 285/308, 285/305, 285/374, 285/403, 285/373, 285/81, 285/82
• US Class Current: 285/308
• CPC Class Codes: F16L 37/0841 by means of a transversally slidable locking member surrounding the tube

Abstract

A quick connect/disconnect coupling having a female coupling member, a male coupling member, and a clip member slidably mounted on the female coupling member for retaining the female and male coupling members together in a coupled state. The clip member is designed to prevent inadvertent actuation thereof, thereby preventing accidental disconnection of the female and male coupling members once they are in the coupled state. The clip member must be actuated from a lock position to an unlock position before the clip member can be actuated from its connect position to its disconnect position. Thus two separate movements of the clip member are required before the coupling can be disconnected and/or connected.

Claims

1. A quick connect/disconnect coupling, comprising:

a female coupling member having a front end and a back end, the female coupling member defining a path for the flow of fluid therethrough;

a male coupling member having a front end and a back end and defining a path for the flow of fluid therethrough, the front end of the male coupling member being insertable into the front end of the female coupling member; and

a quick connect/disconnect clip member slidably mounted on the female coupling member whereby the clip member is slidable between a connect position wherein the clip member engages the male coupling member for retaining the male coupling member within the female coupling member and a disconnect position wherein the clip member is disengaged from the male coupling member thereby enabling disconnection of the male coupling member and the female coupling member, said clip being movable between a lock position and an unlock position wherein the clip member includes a means for preventing sliding movement of the clip member from the connect position to the disconnect position when the clip is in the lock position and permitting sliding movement of the clip member from the connect position to the disconnect position when the clip is in the unlock position.

2. The quick connect/disconnect coupling according to claim 1, wherein said clip member includes a plate portion having a front face and a back face, and wherein a shoulder is disposed on said front face and is engaged with said female coupling member at the lock position and is disengaged from said female coupling member at the unlock position, and a resilient biasing member is disposed on said back face and biases said clip member toward the connect position.

3. The quick connect/disconnect coupling according to claim 2, wherein said plate portion is disposed in a slot formed in said female coupling member, and said plate portion includes a first section adjacent said shoulder having an increasing thickness and a second section with a substantially constant thickness connected to said first section.

4. The quick connect/disconnect coupling according to claim 3, wherein the thickness of said first section adjacent said shoulder is less than a thickness of said slot adjacent thereto, and the thickness of said second section is substantially equal to the thickness of said slot adjacent thereto.

5. A quick connect/disconnect coupling, comprising:

a female coupling member having a front end and a back end, the female coupling member defining a path for the flow of fluid therethrough;

a male coupling member having a front end and a back end and defining a path for the flow of fluid therethrough, the front end of the male coupling member being insertable into the front end of the female coupling member;

a quick connect/disconnect clip member slidably mounted on the female coupling member whereby the clip member is slidable between a connect position wherein the clip member engages the male coupling member for retaining the male coupling member within the female coupling member and a disconnect position wherein the clip member is disengaged from the male coupling member thereby enabling disconnection of the male coupling member and the female coupling member, and wherein the clip includes a shoulder that is selectively engageable with and disengageable from said female coupling member, and wherein sliding movement of said clip member from the connect position to the disconnect position is prevented when said shoulder is engaged with said female coupling member; and

a resilient member connected to said clip member, said resilient member biasing said clip member toward the connect position when said clip member is at the disconnect position.

6. The quick connect/disconnect coupling according to claim 5, wherein said clip member includes a plate portion having a front face and a back face, and wherein a shoulder is disposed on said front face and is engaged with said female coupling member at the lock position and is disengaged from said female coupling member at the unlock position, and said resilient biasing member is disposed on said back face.

7. The quick connect/disconnect coupling according to claim 6, wherein said plate portion is disposed in a slot formed in said female coupling member, and said plate portion includes a first section adjacent said shoulder having an increasing thickness and a second section with a substantially constant thickness connected to said first section.

8. The quick connect/disconnect coupling according to claim 7, wherein the thickness of said first section adjacent said shoulder is less than a thickness of said slot adjacent thereto, and the thickness of said second section is substantially equal to the thickness of said slot adjacent thereto.

9. A female coupling member, comprising:

a housing having a front end and a back end and defining a path for the flow of fluid therethrough, a slot being defined in said housing and extending generally transversely of the flow path; and

a quick connect/disconnect clip member slidably mounted in said slot whereby said clip member is slidable in a direction generally transverse to the flow path between a first position and a second position, the clip member is movable within the slot between a lock position and an unlock position wherein the clip member includes a means for retaining the clip member at the first position and for preventing sliding movement of the clip member from the first position to the second position when the clip member is in the lock position and for permitting sliding movement of the clip member from the first position to the second position when the clip is in the unlock position.

10. The female coupling member according to claim 9, wherein said clip member includes a plate portion having a front face and a back face, and wherein a shoulder is disposed on said front face and is engaged with said female coupling member at the lock position and is disengaged from said female coupling member at the unlock position, and a resilient biasing member is disposed on said back face and biases said clip member toward the connect position.

11. The quick connect/disconnect coupling according to claim 10, wherein said plate portion is disposed in a slot formed in said female coupling member, and said plate portion includes a first section adjacent said shoulder having an increasing thickness and a second section with a substantially constant thickness connected to said first section.

12. The female coupling member according to claim 11, wherein the thickness of said first section adjacent said shoulder is less than a thickness of said slot adjacent thereto, and the thickness of said second section is substantially equal to the thickness of said slot adjacent thereto.