US 6,669,985 B2Granted

Methods for making glued shale shaker screens

AssigneeVarco I/P, Inc.

InventorsThomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David W. Largent, David L. Schulte, Jr., Charles N. Grichar, Vincent D. Leone, Jefrey E. Walker, Guy L. McClung, III

Life of this patent

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Abstract

Methods for making screen assemblies and screens for a vibratory separator or shale shaker, such methods including applying glue in a glue pattern to at least one layer of screening material, said applying done by powered moving mechanical glue application apparatus; in one aspect moving with powered mechanical screen movement apparatus the at least one layer of screening material beneath the powered moving mechanical glue application apparatus; in one aspect, using hot melt moisture-curing glue, and in one aspect facilitating the cure of moisture-curing glue by applying moisture to it.

Claims24

Dependent claims

A method for making a screen assembly for a vibratory separator, the vibratory separator including vibration apparatus for vibrating the screen assembly to impart vibratory forces to the screen assembly for vibrating the screen assembly during use of the screen assembly on the vibratory separator, the method comprising

applying glue in a glue pattern to at least one layer of screening material useful for screening fluid introduced to a vibratory separator, said applying done by powered moving mechanical glue application means, and
applying the glue in an amount sufficient so that said screen assembly while in use on the vibratory separator is able to withstand vibratory forces imparted thereto by the vibration apparatus of the vibratory separator,
wherein the glue is moisture-curing hot melt glue, the method further comprising heating the glue, and
moving with powered mechanical screen movement apparatus the at least one layer of screening material beneath the powered moving mechanical glue application means.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 10/037,474Filed 19 Oct 2001 · continuation in part
Priority: 30 Oct 1998
Published: US 2002/0168469 A114 Nov 2002
Granted: 30 Dec 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification35 codes

B01D 29/012
With flat filtering elements: making filtering elements
B01D 29/05
With flat filtering elements: supported
B01D 29/07
Supported: with corrugated, folded or wound filtering sheets
B01D 29/445
Edge filtering elements, i.e. using contiguous impervious surfaces: bar screens

Family

Application09/183,004Parent of this continuation-in-part · filed 30 Oct 1998
Application09/390,231Parent of this continuation-in-part · filed 3 Sep 1999
Application09/454,722Parent of this continuation-in-part · filed 4 Dec 1999
Application09/517,212Parent of this continuation-in-part · filed 2 Mar 2000
Application09/603,531Parent of this continuation-in-part · filed 27 Jun 2000
Application09/707,277Parent of this continuation-in-part · filed 6 Nov 2000
US 6,186,337 B1Parent of this continuation-in-part · filed 13 Feb 2001
US 2002/0168469 A1Pre-grant publication · published 14 Nov 2002
US 6,581,781 B1Parent of this continuation-in-part
US 6,450,345 B1Parent of this continuation-in-part
US 6,565,698 B1Parent of this continuation-in-part
US 6,325,216 B1Parent of this continuation-in-part
US 6,669,985 B2This patent

From the US filing history. Foreign family members aren’t listed.