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| Number | Title | Issue Date |
| 4980586 | Digital integrated circuit propagation delay regulator In accordance with the present invention, a heater is included on an integrated circuit, together with a circuit for controlling the heater to selectively heat the integrated circuit and control the propagation delay time of signals passing through the in... | 12/25/1990 |
| 4818056 | Optical connector with direct mounted photo diode An optical connector in accordance with the invention includes a body to which an optical fiber supporting ferrule is mounted. A photo diode is rigidly mounted to the connector such that the photo active portion of the photo diode is optically coupled to ... | 04/04/1989 |
| 4751457 | Integrated circuit probe parallelism establishing method and apparatus A probe mount carries a probe with test points having ends in a test point plane. The probe mount is supported at three spaced apart locations by respective first, second and third supports, each adjacent to a respective one of the test points. These prob... | 06/14/1988 |
| 4728969 | Air assisted ink jet head with single compartment ink chamber An air-assisted drop-on-demand ink jet head 10 has a single compartment ink chamber 14 and is designed for operation over a wide range of ink drop repetition rates, including extremely high repetition rates, such as twenty kilohertz. The components includ... | 03/01/1988 |
| 4727378 | Method and apparatus for purging an ink jet head An ink jet head 10 has an ink chamber 14 which receives ink from an ink inlet passageway 38. Pressure pulses applied to the ink chamber cause the ejection of ink drops from an ink drop forming orifice 23 and toward printing medium. A purging outlet 41 com... | 02/23/1988 |
| 4725695 | Touch panel with discontinuities in touch sensitive surface In accordance with the invention, a touch panel includes an electrically conductive film of a first resistivity which extends over a first area of a base plate. Regions of a resistivity higher than the first resistivity, such as discontinuities in the fil... | 02/16/1988 |
| 4713520 | Method and apparatus for interconnecting and hermetically sealing ceramic components A hollow enclosure has first and second ceramic walls interconnected and hermetically sealed by first and second compact coupling assemblies. In one form, each coupling assembly includes a first flange portion, a web portion and second flange portion. The... | 12/15/1987 |
| 4707845 | Touch panel with automatic nulling A touch panel has panel scanning signals selectively applied to the four sides of a touch sensing surface of the panel so as to establish alternating current voltage gradients in desired directions across the touch sensing surface. When the panel is touch... | 11/17/1987 |
| 4698460 | Touch panel system A touch panel has panel scanning signals selectively applied to the four sides of a touch sensing surface of the panel so as to establish alternating current voltage gradients in desired directions across the touch sensing surface. When the panel is touch... | 10/06/1987 |
| 4698461 | Touch panel with automatic frequency control A touch panel has panel scanning signals selectively applied to the four sides of a touch sensing surface of the panel so as to establish alternating current voltage gradients in desired directions across the touch sensing surface. When the panel is touch... | 10/06/1987 |
| 4680429 | Touch panel A touch panel has panel scanning signals selectively applied to the four sides of a touch sensing surface of the panel so as to establish alternating current voltage gradients in desired directions across the touch sensing surface. When the panel is touch... | 07/14/1987 |
| 4613875 | Air assisted ink jet head with projecting internal ink drop-forming orifice outlet An air assisted drop-on-demand ink jet head 10 has an ink chamber with an ink drop-forming orifice outlet 23 from which ink drops are generated in response to pressure waves caused by a piezoelectric crystal 56. The ink drops are carried by air outwardly ... | 09/23/1986 |
| 4575738 | Ink jet printing apparatus having an ink pressure transient suppressor system An ink jet printer includes a compact ink drop generating module (10) comprising an ink jet print head (14) mounted to a body (12) which contains high and low frequency ink pressure transient suppressing mechanisms (90, 68, 80). These mechanisms inhibit t... | 03/11/1986 |
| 4568954 | Ink cartridge manufacturing method and apparatus An ink cartridge 10 is described with a rigid, hollow housing 12 within which an ink container assembly is positioned. The assembly includes an ink container 16 mounted, as by heat sealing, directly to an ink container support 18. The support 18 is secure... | 02/04/1986 |
