US 4,542,642 A · Plug for test tee

Abstract

A testing device is disclosed for testing a drainage system for leaks, the testing device being selectively connectible to a source of fluid flow. The testing device includes an elongate tubular member having a first and a second end. The tubular member is disposed in fluid tight series communication between the drainage system and the drain. The tubular member defines an internal annular ledge which is disposed between the first and the second end of the tubular member. The tubular member also defines a first lateral hole which is disposed longitudinally away from the ledge. A removable blocking disc sealingly engages the ledge for temporarily preventing flow of fluid from the drainage system to the drain during the testing of the system for leaks. A closure is disposed within an access opening for permitting access to and removal therethrough of the blocking disc from the tubular member subsequent to the testing of the system after the removal of the closure from the access opening. The access opening and the first hole are disposed longitudinally on opposite sides of the blocking disc. The closure defines a second hole such that the second hole is selectively connectible to the source of fluid flow for filling the drainage system prior to testing thereof. The second hole is subsequently connected to the first hole for permitting drainage of the fluid between the drainage system and the drain subsequent to the testing of the drainage system for leaks and prior to removing the blocking disc.

Claims14

Dependent claims

A testing device for testing a drainage system for leaks, said testing device being selectively connectible to a source of fluid flow, said testing device comprising in combination;

an elongate tubular member having a first and a second end, said tubular member being disposed in fluid tight series communication between the drainage system and a drain, said tubular member defining an internal annular ledge disposed between said first and said second end of said tubular member, said tubular member defining a first hole disposed longitudinally away from said ledge;
removable blocking means sealingly engaging said ledge for temporarily preventing the flow of fluid from the drainage system to the drain during the testing of the system for leaks;
access means defined by said tubular member for permitting access to and removal therethrough of said blocking means from said tubular member subsequent to the testing of the system, said access means and said first hole being disposed longitudinally on opposite sides of said blocking means
said access means including a first closure means for closing said access means, said closure means defining a second hole such that said second hole is selectively connectible to the source of fluid flow for filling the drainage system prior to testing thereof, said second hole being subsequently connectible to said first hole for permitting drainage of fluid between the drainage system and the drain subsequent to the testing of the drainage system for leaks and prior to the removal of said blocking means;
and
a first and a second plug means for plugging said first and said second holes respectively subsequent to removal of said blocking means from said tubular member.

3 more elements

A testing device for testing a drainage system for leaks, said testing device being selectively connectible to a source of fluid flow, said testing device comprising in combination;

an elongate tubular member having a first and a second end, said tubular member being disposed in fluid tight series communication between the drainage system and a drain, said tubular member defining an internal annular ledge disposed between said first and said second end of said tubular member, said tubular member defining a first lateral hole disposed longitudinally away from said ledge;
a blocking disc sealingly engaging said ledge for temporarily preventing the flow of fluid from the drainage system to the drain during the testing of the system for leaks;
access means defined by said tubular member for permitting access to and removal therethrough of said blocking disc from said tubular member subsequent to the testing of the system, said access means and said first hole being disposed longitudinally on opposite sides of said blocking disc, said access means including;
a first closure means for closing said access means, said closure means defining a second hole such that said second hole is selectively connectible to the source of fluid flow for filling the drainage system prior to testing thereof, said second hole being subsequently connectible to said first hole for permitting drainage of fluid between the drainage system and the drain subsequent to the testing of the drainage system for leaks and prior to the removal of said blocking disc;
a first and a second plug means for plugging said first and said second holes respectively subsequent to removal of said blocking disc from said tubular member;
a length of flexible hose having a first and a second end;
a first and a second coupling disposed adjacent said first and second end of said hose respectively;
a shut off valve having a first and a second end, said first end of said shut off valve being connected in fluid type communication with said first end of said hose, said second end of said shut off valve threadably cooperating with said second hole;
and
said second end of said hose being selectively connected to the source of fluid flow for filling the drainage system through said second hole prior to testing the drainage system, said second end of said hose being disconnected from said source of fluid flow and inserted through said first hole subsequent to the testing of the drainage system for permitting flow of fluid from said drainage system to said drain prior to removal of said blocking means.

7 more elements

Dependencies are inferred from the claim text.

Plug for test tee

Life of this patent

Plug for test tee

Life of this patent

Abstract

Claims14