Patent US3824860A successfully refreshed from Google Patents.
US3824860A
Expired / Lapsed
US
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Time schedule controller and parts and housing therefor
Assignee: Robertshaw Controls Co
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Filing: 1973-02-20
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Granted: 1974-07-23
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Expires: 1993-02-20
Abstract
Abstract A time schedule controller wherein the high limit index and the set point index respectively have members movable therewith and alignable in relation to each other only when the set point index reaches the setting of the high limit index. An actuator for terminating the operation of the set point index in the rate of rise thereof is only actuated when the alignable members of the high limit index and the set point index that are operatively associated therewith are in their aligned relation thereof.
Inventors
- 👤 G Hardin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:40
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07; G05B19/075
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
In an instrument for measuring a condition and having a casing and door means for pivotally opening and closing said casing, said door means having an adjusting member thereon and said casing having the condition adjustable member therein for being adjusted by said adjusting member when said door means is closed, the improvement wherein said adjusting member has outwardly directed tangs and said adjustable member has slots therein for receiving said tangs when said tangs are aligned therewith and said door means is closed whereby said adjusting member and said adjustable member are coupled together for rotation in unison relative to said instrument.
Claim 2
Dependent Claim
103 words
In an instrument for measuring a condition and having a casing and door means for pivotally opening and closing said casing, said door means having an adjusting member thereon and said casing having the condition adjustable member therein for being adjusted by said adjusting member when said door means is closed, the improvement wherein said adjusting member has outwardly directed tangs and said adjustable member has slots therein for receiving said tangs when said tangs are aligned therewith and said door means is closed whereby said adjusting member and said adjustable member are coupled together for rotation in unison relative to said instrument.
Claim 3
Dependent Claim
23 words
In an instrument as set forth in claim 1, the further improvement wherein said tangs of said adjusting member are axially movable thereon.
Claim 4
Dependent Claim
29 words
In an instrument as set forth in claim 2, the further improvement wherein said tangs are biased to one position relative to said adjusting member by a compression spring.
Claim 5
Dependent Claim
30 words
In an instrument as set forth in claim 3, the further improvement wherein said adjusting member includes a shaft, said tangs having a body member telescopically disposed on said shaft.
Claim 6
Dependent Claim
37 words
In an instrument as set forth in claim 4, the further improvement wherein said body member and said shaft are keyed together so that said body member is axially movable relative thereto while rotatable in unison therewith.
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |