# US 7,744,013 B2 · Laminar water jet with pliant member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,744,013 B2 - Document ID: US7744013B2 - Status: Granted - Kind: B2 - Application number: 11/878,913 - Filed: 2007-07-27 - Published: 2009-11-05 - Granted: 2010-06-29 - Earliest claimed: 2004-11-17 - Inventors: Bruce Johnson - Web page: https://patentgrep.com/patent/US7744013B2 ## CPC - F21S 8/00: Lighting devices intended for fixed installation (F21S9/00, F21S10/00 take precedence; using a string or strip of light sources F21S4/00) - B05B 1/3402: {to avoid or reduce turbulence, e.g. with fluid flow straightening means} - B05B 12/06: for effecting pulsating flow {(nozzles, spray heads or other outlets with means for generating a discharge of pulsating nature B05B1/08)} - B05B 17/08: Fountains (drinking fountains E03B9/20; wash fountains E03C1/16) - F21W 2121/02: for fountains - F21Y 2103/00: Elongate light sources, e.g. fluorescent tubes - F21Y 2115/10: Light-emitting diodes [LED] - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract An apparatus having a housing with a water channel, for instance a laminar water flow, flowing there through. A pliant member is provided and contained within at least a portion of the housing with an outer surface and an inner surface, the water channel passing substantially unimpeded along and through the inner surface of the pliant member. An at least one water input, an at least one filter member and an at least one jetting element are also provided. The pliant member is oriented within the housing and surrounds at least a portion of water channel, the portion of the water channel flowing therethrough, and the pliant member expanding to absorb surges within the water channel from the input of water flowing in from the at least one water input. ## Claims ### Claim 1 An apparatus comprising: a housing with a water channel flowing therethrough; a pliant member; an at least one water input; an at least one filter member; and an at least one jetting element, wherein the pliant member is oriented within the housing and surrounds at least a portion of the water channel, the portion of the water channel flowing therethrough, and the pliant member expanding to absorb surges within the water channel from the input of water flowing in from the at least one water input. ### Claim 2 (depends on 1) The apparatus of claim 1, further comprising an at least one lighting element. ### Claim 3 (depends on 1) The apparatus of claim 1, further comprising an at least one baffle member. ### Claim 4 (depends on 1) The apparatus of claim 1, further comprising a controller. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the controller further comprises a control input, the control input triggering the generation of an energy pulse wave that enters the water channel and interrupts a laminar flow in the water channel. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the pliant member is comprised of at least one of an at least one closed cell foam material, a rubber compound, a PVC and rubber compound, air pillows, gel filled members, and foam. ### Claim 7 A laminar flow water jet, comprising: a housing; an at least one water input admitting water into a water channel; a pliant member contained within at least a portion of the housing with an outer surface and an inner surface, the water channel passing substantially unimpeded along and through the inner surface of the pliant member; an at least one filter member; and an at least one jetting element, wherein water enters through the at least one water input and the water is made laminar with the pliant member being oriented within the housing and around the water channel and expanding to absorb surges from the input of water flowing in from the at least one water input while adding to the laminarity of the water in the water channel as it is passed through the housing to the jet outlet and ejected as a tube of laminar water. ### Claim 8 (depends on 7) The laminar flow water jet of claim 7, further comprising an at least one lighting element. ### Claim 9 (depends on 7) The laminar flow water jet of claim 7, further comprising an at least one baffle member. ### Claim 10 (depends on 7) The laminar flow water jet of claim 7, wherein the pliant member is comprised of at least one of an at least one closed cell foam material, a rubber compound, a PVC and rubber compound, air pillows, gel filled members, and foam. ### Claim 11 A method for improving laminarity in a water channel, comprising the method steps of: pumping a water channel through a water input with a direction of flow; admitting the water channel into a housing; passing the water channel along a pliant member, the pliant member being a tubular structure surrounding the water channel oriented in and coextensive with the housing and having an outer surface and an inner surface, the water channel passing within and along the inner surface of the pliant member and the pliant member being oriented in the direction of flow of the water channel to expand and absorb pressure variations and to aid in making the water laminar in the water channel; and jetting the water channel from the housing. ### Claim 12 (depends on 11) The method of claim 11, further comprising the method step of smoothing the water within the water channel passing it over an at least one of an at least one baffle member and an at least one filter member to further impart laminarity within the water channel.