Patent 11441298 was granted and assigned to Neoperl, Inc. on September, 2022 by the United States Patent and Trademark Office.
A sanitary insert unit that is fittable on the water outlet of a sanitary outlet fitting is provided, with a throughflow-quantity regulator unit which, in at least one annular throughflow channel, has at least one annular flow-restricting body of elastic material, which at least one flow-restricting body, between itself and an adjacent channel wall bearing a control profiling, bounds a control gap, the passage cross section of which is variable by the flow-restricting body deforming under the differential pressure forming during the flow therethrough. A jet regulator is arranged on the outflow side of the throughflow-quantity regulator unit and has a jet splitter which divides the water coming from the throughflow-quantity regulator unit into a multiplicity of individual jets. The jet splitter is designed as a perforated plate, and the projection of at least one of the throughflow channels is arranged in a perforation-free annular zone of the jet splitter.