Title:
FINGER-TIGHT HIGH PRESSURE FLUIDIC COUPLING
Document Type and Number:
WIPO Patent Application WO/2018/017965
Kind Code:
A3
Abstract:
Disclosed herein are fluidic couplings for high pressure sealing without tools that can apply large amounts of torque. One embodiment of a fitting includes a compression screw, a fluid-carrying tube extending through a bore in the compression screw, a sleeve disposed around the tube, and a seal coupled to the sleeve such that the seal surrounds a distal end portion of the sleeve. This positioning of the seal can facilitate more efficient sealing using less force and creating less dead volume. Such a fitting can be combined, for example, with a driver having a recess formed therein that can surround the compression screw and transfer rotational force thereto. The driver can include outer surface features, such as knurling, that can facilitate a user directly grasping and tightening the fitting. Further, the fitting can include at least one marking used to achieve a desired seal without overtightening.
Inventors:
JENCKS ROBERT (US)
MURPHY CHARLES (US)
MURPHY CHARLES (US)
Application Number:
PCT/US2017/043306
Publication Date:
April 18, 2019
Filing Date:
July 21, 2017
Export Citation:
Assignee:
WATERS TECHNOLOGIES CORP (US)
International Classes:
F16L19/02
Foreign References:
| US20150369403A1 | 2015-12-24 | |||
| US20140110933A1 | 2014-04-24 | |||
| US20150211663A1 | 2015-07-30 | |||
| US5857579A | 1999-01-12 | |||
| US8931808B2 | 2015-01-13 | |||
| US8696903B2 | 2014-04-15 | |||
| US7909367B2 | 2011-03-22 |
Other References:
See also references of EP 3488134A4
Attorney, Agent or Firm:
ROLLER, Derek et al. (US)
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