US 12,459,248 B2
Fluid ejector
Daniel Richard Mace, Cambridge (GB); Neil Emerton, Cambridge (GB); David Alan Crooks, Cambridge (GB); Guy Charles Fernley Newcombe, Cambridge (GB); Charlotte Giverny Pamela Joy Stokes, Cambridge (GB); and Theodore John Snudden, Cambridge (GB)
Assigned to ARCHIPELAGO TECHNOLOGY GROUP LTD, Cambridge (GB)
Filed by ARCHIPELAGO TECHNOLOGY GROUP LTD., Cambridge (GB)
Filed on Dec. 29, 2023, as Appl. No. 18/401,300.
Application 18/401,300 is a continuation of application No. 16/077,988, granted, now 11,858,262, previously published as PCT/GB2017/050400, filed on Feb. 15, 2017.
Claims priority of application No. 1602743 (GB), filed on Feb. 16, 2016.
Prior Publication US 2024/0208204 A1, Jun. 27, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B41J 2/02 (2006.01); B41J 2/14 (2006.01)
CPC B41J 2/02 (2013.01) [B41J 2/14 (2013.01); B41J 2/14161 (2013.01); B41J 2202/02 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An ejector for ejecting ejectant, the ejector comprising:
a rigid body having opposing first and second surfaces and at least one nozzle defined between the first and second surfaces, each of the at least one nozzle defined by a conduit extending through the rigid body to connect a first orifice defined at the first surface of the rigid body and a second orifice defined at the second surface of the rigid body;
an ejectant supply device for supplying ejectant to each of one or more of the at least one nozzle, wherein the ejectant supply device comprises a housing for holding the ejectant and an ejectant feed pipe connected to a lower portion of the housing for supplying the ejectant to the housing; and
a gas supply device for supplying a gas to the one or more nozzles through the one or more first orifices, the gas supply device defining a gas outlet,
wherein:
the ejectant supply device is operable to supply the ejectant to each of the one or more nozzles from the housing at a pressure above ambient pressure, and
the gas supply device is operable to supply gas to the one or more first orifices of the one or more nozzles at a pressure above ambient pressure, wherein for each of the one or more nozzles a pressure difference created thereby between the first orifice and the second orifice of the nozzle causes ejection of the ejectant from the nozzle through the second orifice.