US3569992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanical timer mechanism with improved modular housing construction with adjustable cam operating means
Assignee: INDUSTRIAL TIMER CORP
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Filing: 1969-03-06
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Granted: 1971-03-09
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Expires: 1989-03-06
Abstract
Abstract Timer having modular construction for mounting switches, relays and coils including actuating cam assemblies adjustable for timing intervals and sequencing, including molded plastic interfitting parts capable of providing a multitude of switching arrangements and which permits ease of assembly and maintenance.
Inventors
- 👤 Frank J Papa Jr
- 👤 Kenneth P Kraemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:03
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/10; H01H43/12; H01H43/125
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
202 words
In a timer, a plurality of molded plastic interlocking switch blocks, a plurality of switches and coacting switch actuators mounted on said blocks, each switch block including a base and an upstanding arm, the upstanding arm of one switch block coacting with an upstanding arm of the immediately adjacent switch block to define a mount for a switch and a switch actuator, an end mount at one end of the blocks including a base and an upstanding arm for coacting with the endmost block to define a mount for a switch and switch actuator, removable holddown means for holding the switches and switch actuators in position, bearing means on said end mount for supporting a camshaft, end plates at the opposite ends of said switch blocks and the end mount, tie rods extending through said switch blocks, the end mount and the end plates, fastening means on the ends of said rods holding the switch blocks, end mount and end plates together, a camshaft supported on said end mount and by an end plate, a plurality of adjustable cam means on said camshaft one each for each of the switch actuator and switch combinations, and a timing motor for driving said camshaft.
Claim 2
Dependent Claim
202 words
In a timer, a plurality of molded plastic interlocking switch blocks, a plurality of switches and coacting switch actuators mounted on said blocks, each switch block including a base and an upstanding arm, the upstanding arm of one switch block coacting with an upstanding arm of the immediately adjacent switch block to define a mount for a switch and a switch actuator, an end mount at one end of the blocks including a base and an upstanding arm for coacting with the endmost block to define a mount for a switch and switch actuator, removable holddown means for holding the switches and switch actuators in position, bearing means on said end mount for supporting a camshaft, end plates at the opposite ends of said switch blocks and the end mount, tie rods extending through said switch blocks, the end mount and the end plates, fastening means on the ends of said rods holding the switch blocks, end mount and end plates together, a camshaft supported on said end mount and by an end plate, a plurality of adjustable cam means on said camshaft one each for each of the switch actuator and switch combinations, and a timing motor for driving said camshaft.
Claim 3
Dependent Claim
46 words
In a timer as defined in claim 1, wherein each interlocking switch block base includes socket means on one side and socket member means on the other side, so that socket means of one switch block mates with socket member means of an adjacent switch block.
Claim 4
Dependent Claim
38 words
In a timer as defined in claim 2, wherein said end mount base includes socket means on one side and socket member means on the other side for interlocking coaction with a switch block and an end plate.
Claim 5
Dependent Claim
29 words
In a timer as defined in claim 3, wherein said end plates include socket or socket member means for interlocking coaction with said switch blocks and said end mount.
Claim 6
Dependent Claim
31 words
In a timer as defined in claim 1, wherein each interlocking switch block upstanding arm includes bearing sockets for supporting said switches and bearing sockets for pivotally supporting said switch actuators.
Claim 7
Dependent Claim
38 words
In a timer as defined in claim 5, wherein said bearing sockets open upwardly and the sockets pivotally supporting the switch actuator and at least part of the sockets supporting said switches are closed by said holddown means.
Claim 8
Dependent Claim
46 words
In a timer aS defined in claim 1, wherein the upper ends of said switch block upstanding arms include locating means for said holddown means, and said holddown means includes guide means coacting with said locating means for precisely positioning said holddown means on said arms.
Claim 9
Dependent Claim
24 words
In a timer as defined in claim 1, wherein said holddown means is molded of plastic and said end plates are metal die cast.
Claim 10
Dependent Claim
43 words
In a timer as defined in claim 1, wherein said cam means includes a fixed cam frictionally mounted on said shaft and an adjustable cam frictionally mounted on said fixed cam, whereby time interval and sequencing operation of said switches may be adjusted.
Claim 11
Dependent Claim
30 words
In a timer as defined in claim 9, wherein said cams include graduated scale means for setting time interval and sequencing operation of the switches, and are of molded plastic.
Claim 12
Dependent Claim
27 words
In a timer as defined in claim 1, wherein said switches actuators include a metal die-cast body and sintered bronze rollers mounted thereon engaging the plastic cams.
Claim 13
Dependent Claim
80 words
In a timer as defined in claim 1, and switch bracket means mountable on the switch block base for supporting a second bank of switches and switch actuators, said switch bracket means including a plurality of switch brackets each including a base and an upstanding arm, the base having means thereon coacting with means on said switch block base for aligning the switch brackets relative the camshaft to support the switches and switch actuators in operative relation to said camshaft.
Claim 14
Dependent Claim
48 words
In a timer as defined in claim 1, and a shaft support including a base and a shaft hanger, and means on said shaft support base coacting with a switch block base for mounting same to align the hanger with respect to the general axis of the camshaft.
Claim 15
Dependent Claim
19 words
In a timer as defined in claim 1, and a frictional coupling between said timing motor and said camshaft.
Claim 16
Dependent Claim
81 words
In a timer as defined in claim 1, and a magnet assembly base between the end mount and adjacent end plate coaligned with the bases of said switch blocks, a magnet assembly on said base, a combined cam and camshaft positioning device on said camshaft, a switch actuator and latching member mounted on said adjacent switch blocks to coact with said combined cam and camshaft positioning device, and actuating linkage between said magnet assembly and said switch actuator and latching member.
Claim 17
Dependent Claim
39 words
In a timer as defined in claim 15, wherein said actuating linkage includes a lever pivotally mounted on the end mount in driven engagement with the magnet assembly and in driving engagement with said switch actuator and latching member.
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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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |