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Fci Holdings Delaware Inc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "F" | Fci Holdings Delaware Inc-related inventors


 new patent  Corrosion resistant expandable bolt

Rock bolts comprising an expandable tube having a longitudinally extending depression disposed between two curved outer portions of the tube, wherein the depression defines a channel having an opening defined between the two curved outer portions of the tube and the width of the opening is at least 10% of the width of the tube and/or a coating layer covers at least a portion of the expandable tube. Also, a method of manufacturing a rock bolt comprising forming an expandable tube comprising a longitudinally extending depression disposed between two curved outer portions of the tube, crimping a proximal end of the tube to form a crimped portion, and placing a sleeve around the crimped portion. ... Fci Holdings Delaware Inc

Slotted tubular anchor

A mine bolt includes an elongated body having a first end and a second end positioned opposite the first end, and an anchor comprising a tube defining a central opening and a slot extending at least a portion of the length of the tube. The anchor is secured to the elongated body. ... Fci Holdings Delaware Inc

Corrosion resistant yieldable bolt

A mine bolt includes an elongated body having a first end and a second end positioned opposite the first end, with the elongated body having a first threaded section, a second threaded section, and a non-threaded section positioned between the first threaded section and the second threaded section. The non-threaded section is configured to yield under loading when the mine bolt is installed with grout in a bore hole.. ... Fci Holdings Delaware Inc

Overcast system for mine ventilation

An overcast system to block an intersection between two or more mine passageways so as to prevent the mixture of intake air with return air. The overcast system includes a first sidewall formed of one or more prefabricated panels, a second sidewall formed of one or more prefabricated panels, and a top member formed of one or more prefabricated panels, such that the top side spans the width between the first sidewall and the second sidewall. ... Fci Holdings Delaware Inc








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