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US 4,364,068 AGranted
Ink jet construction and method of construction
AssigneeExxon Research & Engineering Co.
InventorArthur M. Lewis
Life of this patent
Estimating the term…
Abstract
A glass tube having a substantially planar wall with an orifice formed at one end of the tube which forms the chamber for an ink jet from which droplets of ink are ejected. A transducer is coupled to the substantially planar wall. The ratio of the modulus of elasticity of the tube and the modulus of elasticity of the transducer are substantially equal.
Claims26
An ink jet adapted to project droplets of ink comprising:
- a discrete glass tube having integrally formed walls of substantially uniform thickness, one of said walls being substantially planar and having a thickness of 1 to 20% of the length of said one of said walls transverse to the axis of the glass tube;
- a transducer coupled to one of said walls of said tube, the modulus of elasticity for the tube being substantially equal to the modulus of elasticity for the transducer;
- an orifice formed at the end of said tube for emitting droplets when said wall is moved in response to the state of said transducer.
An ink jet array comprising:
- a plurality of discrete glass tubes, each of said tubes having integrally formed walls of substantially uniform thickness, each of said tubes having a substantially planar wall and forming a chamber therein;
- a plurality of transducers, one of said transducers being coupled to a wall extending in a direction generally parallel to the maximum cross-sectional dimension of said tubes;
- an orifice formed at an end of each of said tubes for emitting droplets when each of said chambers is contracted;
- each of said planar walls having a thickness of 1 to 20% of the length of said planar walls transverse to the axis of said tubes;
- and
- the modulus of elasticity for the tubes being substantially equal to the modulus of elasticity for the transducers.
3 more elements
A method of constructing an ink jet comprising the following steps:
- providing a discrete, integrally formed glass tube having walls of substantially uniform thickness including a planar wall, said planar wall having a thickness of 1 to 20% of the length of said one of said walls transverse to the axis of the glass tube;
- exposing a transducer to said planar wall of said tube, said transducer having a modulus of elasticity substantially equal to the modulus of elasticity of the planar wall;
- and
- creating an orifice at one end of said tube.
1 more element
Dependencies are inferred from the claim text.