JPS4953446A - - Google Patents
Info
- Publication number
- JPS4953446A JPS4953446A JP48073263A JP7326373A JPS4953446A JP S4953446 A JPS4953446 A JP S4953446A JP 48073263 A JP48073263 A JP 48073263A JP 7326373 A JP7326373 A JP 7326373A JP S4953446 A JPS4953446 A JP S4953446A
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/226—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water measuring the braking of a rotatable element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/0007—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm for discrete indicating and measuring
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0856—Detection or control means for the developer level
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0856—Detection or control means for the developer level
- G03G15/0858—Detection or control means for the developer level the level being measured by mechanical means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Dry Development In Electrophotography (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/266,936 US3979022A (en) | 1972-06-28 | 1972-06-28 | Monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4953446A true JPS4953446A (US07696358-20100413-C00002.png) | 1974-05-24 |
Family
ID=23016600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48073263A Pending JPS4953446A (US07696358-20100413-C00002.png) | 1972-06-28 | 1973-06-28 |
Country Status (10)
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2139198A (en) * | 1983-02-26 | 1984-11-07 | Malcolm Jones | Hopper level indicator |
| US4964301A (en) * | 1989-04-25 | 1990-10-23 | Kamyr Ab | Chip level indicator with differential transformer |
| US4989754A (en) * | 1989-11-30 | 1991-02-05 | Xerox Corporation | Toner level detection system |
| US5495315A (en) * | 1991-03-27 | 1996-02-27 | Xerox Corporation | Level sensing apparatus |
| US5355199A (en) * | 1993-09-24 | 1994-10-11 | Xerox Corporation | Development unit for an electrophotographic printer having a torque-triggered outlet port |
| US5424816A (en) * | 1994-06-27 | 1995-06-13 | Xerox Corporation | Toner cartridge |
| US6481279B1 (en) * | 2000-11-21 | 2002-11-19 | Arteva North America S.A.R.L. | Absolute inventory control by radial force measurement |
| US7412905B1 (en) | 2004-05-31 | 2008-08-19 | Richard Anthony Bishel | Paddle sensor |
| US9519243B2 (en) | 2014-06-02 | 2016-12-13 | Lexmark International, Inc. | Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing |
| US9389582B2 (en) | 2014-06-02 | 2016-07-12 | Lexmark International, Inc. | Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing |
| US10474060B1 (en) | 2018-07-05 | 2019-11-12 | Lexmark International, Inc. | Toner level sensing using rotatable magnets having varying angular offset |
| US10429765B1 (en) * | 2018-07-05 | 2019-10-01 | Lexmark International, Inc. | Toner container for an image forming device having magnets of varying angular offset for toner level sensing |
| US10451997B1 (en) | 2018-07-20 | 2019-10-22 | Lexmark International, Inc. | Toner level detection measuring an orientation of a rotatable magnet having a varying orientation relative to a pivot axis |
| US10451998B1 (en) | 2018-07-20 | 2019-10-22 | Lexmark International, Inc. | Toner level detection measuring an orientation of a rotatable magnet having a varying radius |
| US10345736B1 (en) | 2018-07-20 | 2019-07-09 | Lexmark International, Inc. | Toner level detection measuring a radius of a rotatable magnet |
| US11986852B2 (en) * | 2021-05-04 | 2024-05-21 | Unverferth Manufacturing Co., Inc. | Dry product spreader |
| CN114408588A (zh) * | 2021-12-31 | 2022-04-29 | 成都瑞柯林工程技术有限公司 | 颗粒物气力输送检测方法及检测设备 |
| CN114314011A (zh) * | 2021-12-31 | 2022-04-12 | 成都瑞柯林工程技术有限公司 | 颗粒物回收装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2116075A (en) * | 1936-11-28 | 1938-05-03 | Fuller Co | Indicator |
| DE876167C (de) * | 1944-01-14 | 1953-05-11 | Peters Ag Claudius | Bunkerstandanzeiger |
| US2863103A (en) * | 1954-09-24 | 1958-12-02 | W N Borg Corp | Relay |
| FR1356175A (fr) * | 1963-05-07 | 1964-03-20 | Transbeton S A | Dispositif de contrôle du plein d'un silo |
| US3575130A (en) * | 1968-07-31 | 1971-04-13 | Eastman Kodak Co | Indicating mechanism |
| US3593842A (en) * | 1969-10-20 | 1971-07-20 | Minnesota Mining & Mfg | Powder level sensing |
-
1972
- 1972-06-28 US US05/266,936 patent/US3979022A/en not_active Expired - Lifetime
- 1972-10-31 CA CA155,250A patent/CA982841A/en not_active Expired
- 1972-12-14 DE DE2261253A patent/DE2261253A1/de active Pending
-
1973
- 1973-01-03 FR FR7300103A patent/FR2191103B1/fr not_active Expired
- 1973-06-25 GB GB2997673A patent/GB1431574A/en not_active Expired
- 1973-06-26 SE SE7308931A patent/SE386751B/xx unknown
- 1973-06-26 IT IT25878/73A patent/IT990693B/it active
- 1973-06-27 NL NL7308989A patent/NL7308989A/xx unknown
- 1973-06-28 BE BE132855A patent/BE801607A/xx unknown
- 1973-06-28 JP JP48073263A patent/JPS4953446A/ja active Pending
Non-Patent Citations (1)
| Title |
|---|
| IBM TECHNICAL DISCLOSURE BULLETIN#V13#N11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7308989A (US07696358-20100413-C00002.png) | 1974-01-02 |
| US3979022A (en) | 1976-09-07 |
| CA982841A (en) | 1976-02-03 |
| IT990693B (it) | 1975-07-10 |
| FR2191103B1 (US07696358-20100413-C00002.png) | 1976-04-30 |
| BE801607A (fr) | 1973-12-28 |
| GB1431574A (en) | 1976-04-07 |
| FR2191103A1 (US07696358-20100413-C00002.png) | 1974-02-01 |
| DE2261253A1 (de) | 1974-01-24 |
| SE386751B (sv) | 1976-08-16 |
