摘要:
In a system for laser welding upper and lower work pieces along a weld interface, the upper work piece being transparent to laser light and having a non-uniformly thick dimension, compensation plates and compliant members are taught that mate or otherwise contact the upper work piece such that a combined thickness of the upper work piece and the compensation plate or compliant member is substantially uniform in a region at least above the weld interface. In this manner, substantially consistent amounts of laser light reach the weld interface. The upper work piece may include positive projections, negative voids, contoured profiles, surface imperfections or other that cause the non-uniformity. In one embodiment, the compensation plate is fashioned together with a compliant member. In another embodiment, the upper and lower work pieces comprise inkjet printhead lids and bodies, respectively.
摘要:
In a system for laser welding upper and lower work pieces along a weld interface, the upper work piece being transparent to laser light and having a non-uniformly thick dimension, compensation plates and compliant members are taught that mate or otherwise contact the upper work piece such that a combined thickness of the upper work piece and the compensation plate or compliant member is substantially uniform in a region at least above the weld interface. In this manner, substantially consistent amounts of laser light reach the weld interface. The upper work piece may include positive projections, negative voids, contoured profiles, surface imperfections or other that cause the non-uniformity. In one embodiment, the compensation plate is fashioned together with a compliant member. In another embodiment, the upper and lower work pieces comprise inkjet printhead lids and bodies, respectively.
摘要:
A method for manufacturing an inkjet print cartridge and an inkjet cartridge produced thereby are disclosed. An inkjet print cartridge in accordance with one aspect includes a component of the inkjet print cartridge and an applied adhesive on at least a portion of the component, wherein the applied adhesive is formed from an adhesive having a rheology viscosity ratio ηi/ηmin of from 1.0 to less than 2.1. The method in accordance with one aspect includes applying an adhesive onto at least a portion of a component of an inkjet print cartridge at an application temperature, Tα, and heating the adhesive from an initial temperature, Ti, to a cure temperature for the adhesive, Tc. The adhesive has a rheology cure profile characterized by at least one of the following parameters: a) a rheology viscosity ratio ηi/ηmin of from 1.0 to less than 2.1, b) a temperature of the adhesive is approximately equal to a minimum viscosity temperature for the adhesive, Tηmin, within less than about 10 minutes from the start of the cure cycle, and c) viscosity of the adhesive increases within less than about 5 minutes from the start of the cure cycle.
摘要:
A multi-fluid body and an ejection head substrate connected in fluid flow communication with the multi-fluid body for ejecting multiple fluids therefrom. The multi-fluid body includes at least two segregated fluid chambers. Independent fluid supply paths lead from each of the fluid chambers providing fluid to multiple fluid flow paths in the ejection head substrate. The ejection head substrate is attached adjacent an ejection head area of the body. The fluid flow paths in the ejection head substrate have a flow path density of greater than about one flow paths per millimeter.
摘要:
Ink delivery systems achieve balanced ink flow by positioning two or more ink chambers around ink ejection mechanisms in a printhead. A plurality of pie-shaped ink chambers may be arranged in a circle above an ink ejection mechanism, which provides short ink paths from each ink chamber, and ink paths having approximately the same length. This fosters even ink flow rates and equal pressure drop/loss of ink supplies, thereby improving ink feeds to a printhead and providing improved jetting efficiency and printhead performance.
摘要:
The invention provides an endoscope having a lens holder, wherein the lens holder comprises a body containing a sintered feedstock and machined surfaces. The invention also provides a method of manufacturing the endoscope which comprises the steps of molding a metal blank by a MIM process, wherein the metal blank is “near net shape” and has a sprue, a post, and optionally an outer shell, machining the inner surfaces and then the outer surfaces of the metal blank to form a lens holder, installing a lens in the lens holder, and assembling the lens holder having the lens into the endoscope.
摘要:
The invention provides an endoscope having a lens holder, wherein the lens holder comprises a body containing a sintered feedstock and machined surfaces. The invention also provides a method of manufacturing the endoscope which comprises the steps of molding a metal blank by a MIM process, wherein the metal blank is “near net shape” and has a sprue, a post, and optionally an outer shell, machining the inner surfaces and then the outer surfaces of the metal blank to form a lens holder, installing a lens in the lens holder, and assembling the lens holder having the lens into the endoscope.
摘要:
The invention provides an endoscope having a lens holder, wherein the lens holder includes a body containing a sintered feedstock and machined surfaces. The invention also provides a method of manufacturing the endoscope which includes the steps of molding a metal blank by a MIM process, wherein the metal blank is “near net shape” and has a sprue, a post, and optionally an outer shell, machining the inner surfaces and then the outer surfaces of the metal blank to form a lens holder, installing a lens in the lens holder, and assembling the lens holder having the lens into the endoscope.
摘要:
Electrostatic power generator cell architectures having high generator output and a method of manufacture. In one embodiment, parasitic capacitances are reduced by reducing overlap between walls of the chamber and electrodes of the generator cell. In another embodiment, generator component materials are selected to reduce triboelectric effects to improve the coupling of kinetic energy to electrical output, thereby increasing generator output. In a further embodiment, the high permittivity material is selected to increase the modulation of the variable capacitors in the power generator to increase generator output. In still another embodiment, the physical dimensions of the generator cell components are reduced to increase power density. In an additional embodiment, a physical dimension of the generator chamber is based on the dominant motion the generator will be exposed to in a particular application.
摘要:
The invention provides an endoscopic video camera having a polymeric knob assembly, wherein the polymeric material used for manufacturing the knob assembly includes polyphenylsulfone resin, titanium dioxide, tin oxide, and colored metallic additives, is capable of withstanding sterilization, and has a metallic cosmetic appearance. The invention also provides methods of manufacturing the knob assembly by plastic injection molding processes, wherein undesirable molding characteristics are concentrated on portions of the knob assembly that are removed by secondary machining or post machining.