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US 4,728,041 AGranted
Fluid spray apparatus
AssigneeWeatherford U.S., Inc.
InventorsDaniel R. Draxler, Michael J. Woodward
Life of this patent
Estimating the term…
Abstract
A fluid spray apparatus for oscillating a fluid discharge head attached thereto and a self-oscillation apparatus. The fluid spary apparatus may have a mounting for receiving and holding a fluid discharge device or devices, the mounting member being pivotably connected to dual supports which are in turn movably mounted on a body member with a lost motion means so that a component of the force reacting to the fluid discharge effects oscillating movement of the fluid spray device.
Claims19
Fluid spray apparatus with self-oscillating mount means comprising
- mount means for receiving and holding fluid discharge means,
- first support means supporting said mount means, said mount means pivotably connected to said first support means at a first pivot point,
- second support means supporting said mount means, said mount means pivotably connected to said second support means at a second pivot point spaced apart from the first pivot point,
- lost motion means for said second support means, for permitting reversal of direction of movement, and
- body member means, said first support means movably mounted on said body member means and said second support means spaced apart from said first support means and movably mounted on said body member means so that as fluid is discharged beyond the second support means the support means move on the body member means, the mount means thereby alternately transversing about the two pivot points.
2 more elements
Fluid spray apparatus comprising
- mount means for receiving and holding fluid discharge means, said mount means having a first end and a second end,
- a first support bar, said mount means pivotably connected to and supported by said first support bar by a first pivot pin on the first end of said mount means,
- a second support bar supporting said mount means, said second end of said mount means pivotably connected to said second support bar by a second pivot pin spaced apart from the first pivot point, said second pivot pin movable in a slot in said second support bar to provide a lost motion connection for the second support bar,
- body member means, said first support bar movably mounted on said body member means and said second support bar spaced apart from said first support bar and movably mounted on said body member means so that as fluid is discharged beyond the second support bar the support bars move alternately on the body member means, the mount means thereby alternately traverses about the two pivot points,
- roller means mounted on the body member means for guiding and for facilitating the movements of the support bars, the roller means having flanges thereon for holding the support bars in position with respect to the rollers,
- frequency variation means connected to at least one of the support bars for varying the frequency of movement of the support bars across the bar member means thereby varying the frequency of traverse of the mount means, the frequency variation means comprising means for attachment to one of the bars, and
- stop means on said body member means for contacting one or both bars to limit the bar's movement and to prevent movement of said bar or bars in one direction.
4 more elements
Self-oscillation apparatus comprising
- mount means for receiving and holding fluid discharge means,
- traverse means,
- first support means supporting said traverse means, said traverse means pivotably connected to said first support means at a first pivot point,
- second support means supporting said traverse means, said traverse means pivotably connected to said second support means at a second pivot point spaced apart from the first pivot point, and
- lost motion means for said second support means permitting said second support means to change direction,
- body member means, said first support means movably mounted on said body member means and said second support means movably mounted on said body member means so that the support means are movable on the body member means in response to the force of the fluid discharge means and the traverse means is thereby alternately traversed about the two pivot points.
3 more elements
Dependencies are inferred from the claim text.