The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2000
Filed:
Oct. 28, 1998
Kenneth C Leighley, Stony Brook, NY (US);
Spectronics Corporation, Westbury, NY (US);
Abstract
A dispensing device is provided for introducing a fluorescent leak detection dye into an operating system containing a pressurized fluid. An embodiment of the dispensing device of the invention comprises a hollow capsule for containing dye having an interior wall and a first and a second end, with the first end adapted to engage the operating system. A plunger having a geometry corresponding to the capsule's interior wall forms a seal against the wall. A rod, having threads of a pre-selected pitch and at least one channel running longitudinally on the rod, is rotatably and axially moveable within the capsule. An end cap is adapted to receive the second end of the capsule with the rod positioned through the end cap. The dispensing device has means located in the end cap to provide controlled engagement of the rod, interposed with the threads of the rod. An indicator adapted to engage the channel of the rod is located in the end cap. A knob is attached to the rod so that rotation of the knob directs the movement of the rod through the capsule and an audible and tactile response is generated as the indicator engages the channel.