Patent US4049501A successfully refreshed from Google Patents.
US4049501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for spotting within tolerance apparatus associated with the coke oven chambers of a battery
Assignee: Raymond Kaiser Engineers Inc
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Filing: 1975-02-11
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Granted: 1977-09-20
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Expires: 1995-02-11
Abstract
Abstract An alignment bar is fixed relative to each coke oven chamber and a pivotable member mounted to apparatus movable relative to the battery engages the bar of a coke oven chamber and in so doing engages electrical contactors that regulate the movement of the apparatus. The apparatus is properly spotted within a preselected tolerance when the pivotable member breaks contact.
Inventors
- 👤 Carl G. Lindgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:36
CPC Classifications
C; C10; C10B; C10B41/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
123 words
Apparatus for aligning a movable powered first structure with a coke oven battery at one or more preselected spotting locations and within a spotting tolerance, comprising: a. an alignment bar mounted in a selected location on said coke oven battery; b. a support rod mounted to said movable powered first structure and carrying a tubular housing; c. a feeler arm pivotally mounted to said tubular housing and having a portion extending outwardly thereof and another portion extending inwardly thereof, said outwardly extending portion being adapted to coact with said alignment bar; d. electrical contactors positioned oppositely in said tubular housing and connected in circuitry with said powered first structure; and e. means resiliently biasing said feeler arm with respect to said tubular housing.
Claim 2
Dependent Claim
123 words
Apparatus for aligning a movable powered first structure with a coke oven battery at one or more preselected spotting locations and within a spotting tolerance, comprising: a. an alignment bar mounted in a selected location on said coke oven battery; b. a support rod mounted to said movable powered first structure and carrying a tubular housing; c. a feeler arm pivotally mounted to said tubular housing and having a portion extending outwardly thereof and another portion extending inwardly thereof, said outwardly extending portion being adapted to coact with said alignment bar; d. electrical contactors positioned oppositely in said tubular housing and connected in circuitry with said powered first structure; and e. means resiliently biasing said feeler arm with respect to said tubular housing.
Claim 3
Dependent Claim
22 words
The invention of claim 1 wherein: a. said means includes a pair of springs coacting with said feeler arm and said housing.
Claim 4
Dependent Claim
66 words
The invention of claim 1 including: a. means for advancing said support rod and tubular housing with feeler arm mounted thereto into engagement with said alignment bar whereby when said feeler arm pivots because said movable powered first structure is not properly aligned within said tolerance at a spotting location said feeler arm coacts with one of said contactors and said support rod ceases to advance.
Claim 5
Dependent Claim
22 words
The invention of claim 1 wherein: a. said electrical contactors are spaced apart a distance that is proportional to said spotting tolerance.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |