US5155681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile apparatus for coke oven
Assignee: Mitsubishi Chemical Corp
•
Filing: 1991-05-21
•
Granted: 1992-10-13
•
Expires: 2011-05-21
Abstract
Abstract An apparatus for moving from position to position along coke ovens during the production of coke which is capable of stopping at its target stop position with high accuracy and without deteriorating its operating efficiency. In the mobile apparatus, a travel pattern is stored in a computer for controlling the apparatus depending on a target stop position of the apparatus and its travel direction immediately before its stop. As a result, any stop error due to the particular conditions inherent in each target stop position can be eliminated. The computer may include a program for correcting the travel pattern depending on the stop error if any.
Inventors
- 👤 Takayoshi Aoki
- 👤 Mitsunori Tsuruhara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:26
CPC Classifications
C; C10; C10B; C10B41/00; C10B35/00; G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/416; G05B2219/00; G05B2219/30; G05B2219/43; G05B2219/43115; G05B2219/45; G05B2219/45241
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
An apparatus for accurately moving between exact positions along coke ovens during the production of coke, the apparatus comprising: an absolute position detecting cable means, arranged along rails on which the apparatus is moved, for detecting an absolute position of the apparatus while traveling along the coke ovens; storing means for storing data representative of a travel pattern of the apparatus between a plurality of a different target stop positions including means for storing each travel pattern depending upon a desired target stop position D of the apparatus and a travel direction of the apparatus to the desired target stop position D; correcting means for correcting the travel pattern based on a stop error, if any, between and actual stop position of the apparatus and each target stop position as determined by the absolute position detecting cable means; and means for permitting the apparatus to run and stop according to a stop command generated by said storing means.
Claim 2
Independent Claim
158 words
An apparatus for accurately moving between exact positions along coke ovens during the production of coke, the apparatus comprising: an absolute position detecting cable means, arranged along rails on which the apparatus is moved, for detecting an absolute position of the apparatus while traveling along the coke ovens; storing means for storing data representative of a travel pattern of the apparatus between a plurality of a different target stop positions including means for storing each travel pattern depending upon a desired target stop position D of the apparatus and a travel direction of the apparatus to the desired target stop position D; correcting means for correcting the travel pattern based on a stop error, if any, between and actual stop position of the apparatus and each target stop position as determined by the absolute position detecting cable means; and means for permitting the apparatus to run and stop according to a stop command generated by said storing means.
Claim 3
Dependent Claim
69 words
An apparatus according to claim 1, wherein each travel pattern comprises a desired velocity of the apparatus relative to a present comprises a desired velocity of the apparatus relative to a present standing position A of the apparatus, a deceleration command position B at which a deceleration command is generated, a stop command position C at which a stop command is generated and a desired target stop position D.
Claim 4
Dependent Claim
156 words
An apparatus according to claim 2, wherein correcting means includes means for generating a stop command position determined by the equation: ##EQU5## wherein A represents the present stating position of the apparatus, C represents the stop command generating position, D represents the desired target stop position δ D+ is a constant value representative of an average braking distance determined in dependence on each desired the target stop position D and the travel direction of the apparatus to each desired target stop position D when the travel direction of the apparatus just prior to stopping increases the absolute position of the apparatus, and δ D- is a constant value representative of an average braking distance determined in dependence on each desired target stop position D and the travel direction of the apparatus to each desired target stop position D when the travel direction of the apparatus just prior to stopping decreases the absolute position of the apparatus.
Claim 5
Dependent Claim
183 words
An apparatus according to claim 2, wherein the correcting means includes means for generating a stop command position determined by the equation: ##EQU6## wherein A represents the present starting position of the apparatus, C represents the stop command generating position, D represents the target stop position, δ D+ is a constant value representative of an average braking distance determined in dependence on each desired target stop position D and the travel direction of the apparatus to each desired target stop position D when the travel direction of the apparatus just prior to stopping increases the absolute position of the apparatus, and δ D- is a constant value representative of an average braking distance determined in dependence on each desired the target stop position D and the travel direction of the apparatus to each desired target stop position D when the travel direction of the apparatus just prior to stopping decreases the absolute position of the apparatus, e 1 , e 2 . . ., e n represent a latest N number of stop errors and ##EQU7## is an average of said stop errors.
Claim 6
Dependent Claim
29 words
An apparatus according to claim 1, wherein the correcting means includes means for correcting the travel pattern based on an average of the most recent number of stop errors.
References Cited (Backward Citations)
US4181945A
Cited
US4196471A
Cited
US4218671A
Cited
GB2062297A
Cited
US4674054A
Cited
US5018689A
Cited
JPS61182104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-13 | 1996-04-13 | 1996-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-13 | 2000-04-13 | 2000-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-13 | 2004-04-13 | 2004-10-13 | $7700.00 | Window Closed / Lapsed |