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Proserv Operations Inc patents

Recent patent applications related to Proserv Operations Inc. Proserv Operations Inc is listed as an Agent/Assignee. Note: Proserv Operations Inc may have other listings under different names/spellings. We're not affiliated with Proserv Operations Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "P" | Proserv Operations Inc-related inventors

Low friction hydraulic circuit control components

A hydraulic control circuit component such as a valve is configured which sliding surfaces. At least one of the sliding surfaces is configured as a single crystal material, such as ruby or sapphire.. ... Proserv Operations Inc

Improved shear seal assembly

A seal assembly includes a first sealing element, a second sealing element, a pin member, and a sealing ring. The first sealing element has a recess formed therein and the second sealing element has a recess formed therein. ... Proserv Operations Inc

Non-interflow directional control valve

A directional control valve having low or no interflow, minimal parts, and configured for easy repair, is provided. In one embodiment, a seat is slidingly sealably movable with respect to opposed plates, such that an inlet in one of the plates communicates with an internal volume of the seat, and by selectively positioning the seat with respect to one or more outlets in a second of the opposed plates, the inlet can be placed in communication with an outlet, or isolated from the one or more outlets.. ... Proserv Operations Inc

Latching poppet valve

A directional control valve for selectively communicating a valve outlet to one of a vent port and a pressure supply port includes a poppet extending through a cage. Relative positioning of the poppet to the cage selects which of the vent and pressure supply port is communicated to the valve outlet. ... Proserv Operations Inc

Shuttle valve with durable soft seal

A shuttle valve having a cage fixed in the cross bore thereof by opposed inlet adaptors extending into opposed first and second inlets is provided. A shuttle is reciprocally located in a bore in the cage, to selectively seal one of the first or second inlets from fluid communication with the valve outlet. ... Proserv Operations Inc

Dynamic variable orifice

A dynamic variable orifice includes a housing within which are located a rotor having at least one opening extending therethrough, and at least one seat ring, having an opening therethrough, biased thereagainst. In response to a pressure spike occurring at the inlet of the dynamic variable orifice, the rotor moves axially and rotationally in the housing, to selectively align the opening in the rotor with the opening in the seat ring.. ... Proserv Operations Inc

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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with Proserv Operations Inc in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Proserv Operations Inc with additional patents listed. Browse our Agent directory for other possible listings. Page by