Patent US4200974A successfully refreshed from Google Patents.
US4200974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making electrical switch construction
Assignee: Robertshaw Controls Co
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Filing: 1978-04-13
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Granted: 1980-05-06
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Expires: 1998-04-13
Abstract
Abstract An electrical switch construction having an electrical switch provided with different operating conditions, the construction having a timer moved actuator operatively associated with the switch for causing the switch to be respectively in one condition thereof a certain percentage of a certain increment of time and in another condition thereof for the remainder of the certain increment of time. The actuator is adapted for selecting the amount of the certain percentage of the certain increment of time within certain limits.
Inventors
- 👤 Edgar E. Marquis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:49
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/10; H01H43/12; H01H43/125; H01H43/106; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
165 words
In a method of making an electrical switch construction having an electrical switch provided with different operating conditions and having means operatively associating with said switch for causing said switch to be repetitively in one condition thereof a certain percentage of a certain increment of time and for being in another condition thereof for the remainder of said certain increment of time, said means being adapted to select the amount of said certain percentage of said certain increment of time within certain limits and including a rotatable cam member having a cam part for camming said switch to one of said operating conditions thereof during each revolution of said cam member, the improvement comprising the steps of forming said cam part of said cam member to be radially movable relative thereto, and forming said means to be adaptable to select a radial position of said cam part for camming said switch or a radial position of said cam part that will not cam said switch.
Claim 2
Dependent Claim
165 words
In a method of making an electrical switch construction having an electrical switch provided with different operating conditions and having means operatively associating with said switch for causing said switch to be repetitively in one condition thereof a certain percentage of a certain increment of time and for being in another condition thereof for the remainder of said certain increment of time, said means being adapted to select the amount of said certain percentage of said certain increment of time within certain limits and including a rotatable cam member having a cam part for camming said switch to one of said operating conditions thereof during each revolution of said cam member, the improvement comprising the steps of forming said cam part of said cam member to be radially movable relative thereto, and forming said means to be adaptable to select a radial position of said cam part for camming said switch or a radial position of said cam part that will not cam said switch.
Claim 3
Dependent Claim
33 words
A method of making an electrical switch construction as set forth in claim 1 and including the step of forming said means to be infinitely variable in the selection of said certain percentage.
Claim 4
Dependent Claim
34 words
A method of making an electrical switch construction as set forth in claim 1 and including the step of forming said means to be adapted for selecting a continuous operating condition of said switch.
Claim 5
Dependent Claim
48 words
A method of making an electrical switch construction as set forth in claim 1 and including the step of forming said means to include a latch for holding said switch in said cammed position thereof each time said cam part cams said switch to that operating condition thereof.
Claim 6
Dependent Claim
41 words
A method of making an electrical switch construction as set forth in claim 1 and including the step of forming said cam part integral with said cam member so that said cam member and said cam part comprises a one-piece structure.
Claim 7
Dependent Claim
54 words
A method of making an electrical switch construction as set forth in claim 5 and including the steps of forming said cam part of said cam member to be hinged to said cam member by a hinged section of said cam member that has a natural resiliency to hold said cam part radially inwardly.
Claim 8
Dependent Claim
59 words
A method of making an electrical switch construction as set forth in claim 4 and including the step of forming said means to include a rotatable unlatching member for operating said latch each revolution of said unlatching member to cause said switch to be unlatched from said cammed operating condition thereof to return to the other operating condition thereof.
Claim 9
Dependent Claim
79 words
A method of making an electrical switch construction as set forth in claim 7 and including the steps of forming said cam member and said unlatching member to rotate about the same axis and respectively have interconnecting structure cooperating together to cause said cam member and said unlatching member to rotate in unison, and forming said means to be adapted to adjust the relative positions of said cam member and said unlatching member to thereby select said certain percentage.
Claim 10
Dependent Claim
122 words
A method of making an electrical switch construction as set forth in claim 8 and including the steps of forming said switch to include a pair of switch blades having a normal bias to place said blades together to provide one of said operating conditions of said switch, forming said cam part to cam both of said blades to the other of said operating conditions where said latch holds one of said blades in said cammed position thereof, and forming said latch to be adapted to hold said one blade in said cammed position thereof while the other blade is adapted to move back to its uncammed position when said cam part is rotated by said cam member away from said blades.
Claim 11
Dependent Claim
63 words
A method of making an electrical switch construction as set forth in claim 8 and including the step of forming said unlatching member to have a cam surface thereon which is adapted to move said cam part of said cam member to its said camming position when said unlatching member and said cam member are in certain rotational positions relative to each other.
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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) | 1983-05-06 | 1983-11-05 | 1984-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-06 | 1987-11-05 | 1988-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-06 | 1991-11-05 | 1992-05-06 | $7700.00 | Window Closed / Lapsed |