Claims
- 1. A switchable load coil case comprising: a housing for covering a load coil; the housing having an opening for receiving front and back panels; the load coil associated with an incoming and outgoing wire pair; an actuator movable between loaded and bypass positions comprising a head and a contact assembly connected to the load coil and incoming and outgoing wire pairs, wherein the contact assembly connects the load coil in series with the incoming and outgoing wire pairs when the actuator is in the loaded position and connects the incoming and outgoing wire pairs while bypassing the load coil when the actuator is in the bypass position; and wherein the contact assembly of the actuator is disposed between the front panel and the back panel and communicates with the head of the actuator through the front panel.
- 2. The switchable load coil case as set forth in claim 1 wherein the back panel has a terminal housing which communicates with the actuator, and the terminal housing has a plurality of contacts for selectively connecting the incoming and outgoing wire pairs and a plurality of leads from the load coil with a plurality of contacts on the actuator.
- 3. The switchable load coil case as set forth in claim 2 wherein the terminal housing comprises a cavity for rotatably receiving the actuator between the loaded and bypass positions, and wherein the actuator has a protrusion for cooperatively engaging a groove having first and second stopwalls which limit movement of the actuator between the first and second stopwalls, and wherein engagement between the first stopwall and the protrusion locates the actuator in the bypass position and engagement between the second stopwall and the protrusion locates the actuator in the loaded position.
- 4. The switchable load coil case as set forth in claim 3 wherein the actuator head comprises a shoulder having an internal notch, and the contact assembly comprises a shaft for engaging the internal notch and for connecting the actuator head with the contact assembly.
- 5. The switchable load coil case as set forth in claim 3 wherein the groove further comprises a ridge disposed between first and second stopwalls, and the actuator comprises at least one detent which resiliently deflects to lockingly engage a first side of the ridge to position the actuator in the bypass position and a second side of the ridge to position the actuator in the loaded position.
- 6. The switchable load coil case as set forth in claim 2 comprising means for rotatably locking the actuator between the loaded and bypass positions.
- 7. The switchable load coil case as set forth in claim 6 wherein the locking means comprises a groove defining first and second stopwalls and a ridge between the first and second sidewalls, and at least one detent in the actuator which resiliently deflects to lockingly engage a first side of the ridge so as to position the actuator in the loaded position and a second side of the ridge so as to position the actuator in the bypass position.
- 8. The switchable load coil case as set forth in claim 2 wherein the contact assembly comprises a seal for forming an air-tight seal with the actuator.
- 9. The switchable load coil case as set forth in claim 2 wherein the terminal housing comprises a cavity for rotatably receiving the contact assembly between the loaded and bypass positions, wherein the front panel comprises a groove defining first and second stopwalls, wherein the actuator head has a protrusion for cooperatively engaging the groove and for limiting movement of the actuator between the loaded and bypass positions, and wherein engagement between the first stopwall and the protrusion locates the actuator in the bypass position and engagement between the second stopwall and the protrusion locates the actuator in the loaded position.
- 10. The switchable load coil case as set forth in claim 1 wherein the contact assembly comprises a rotor for receiving four corresponding contacts wherein a first pair of contacts is disposed at a first depth and a second pair of contacts is disposed at a second depth for electrically separating the contacts.
- 11. A switch assembly for use in a load coil case, the load coil case having a housing for covering a plurality of incoming and outgoing wire pairs, and a load coil associated with each incoming and outgoing wire pair, the switch assembly comprising a front panel, a back panel, and a terminal housing associated with each load coil and having a plurality of contacts for forming an electrical connection to the load coil and incoming and outgoing wire pairs, and an actuator selectively movable between loaded and unloaded positions and having a head and a contact assembly for forming an electrical connection with the terminal contacts, wherein the contact assembly connects the load coil in series with the incoming and outgoing wire pairs when the actuator is in the loaded position and the contact assembly connects the incoming and outgoing wire pairs while bypassing the load coil when the actuator is in the bypass position, and wherein the contact assembly is disposed between the front panel and the back panel and communicates with the head of the actuator through the front panel.
- 12. The switch assembly as set forth in claim 11 comprising a cavity in the terminal housing for rotatably receiving the actuator and a groove defining first and second stopwalls, wherein the actuator comprises a protrusion for cooperatively engaging the groove and for limiting movement of the actuator between the first and second stopwalls, and wherein engagement between the first stopwall and the protrusion locates the actuator in the bypass position and engagement between the second stopwall and the protrusion locates the actuator in the loaded position.
- 13. The switch assembly as set forth in claim 12 wherein the actuator comprises a shoulder having an internal notch, and the contact assembly comprises a shaft for engaging the internal notch and for mating the head of the actuator with the contact assembly.
- 14. The switch assembly as set forth in claim 13 comprising means for rotatably locking the actuator between the loaded and bypass position.
- 15. The switchable load coil case as set forth in claim 14 wherein the locking means comprises a ridge disposed in the groove between first and second stopwalls, and at least one detent in the actuator which resiliently deflects to lockingly engage a first side of the ridge to position the actuator in the bypass position and a second side of the ridge to position the actuator in the loaded position.
- 16. The switch assembly as set forth in claim 15 wherein the contact assembly comprises a seal for forming an air-tight seal with the actuator.
- 17. The switch assembly as set forth in claim 12 wherein the groove further comprises a ridge disposed between first and second stopwalls, and the actuator comprises at least one detent which resiliently deflects to lockingly engage a first side of the ridge so as to position the actuator in the bypass position and a second side of the ridge so as to position the actuator in the loaded position.
- 18. The switch assembly as set forth in claim 11 wherein the contact assembly comprises a rotor for receiving four corresponding contacts wherein a first pair of contacts is disposed at a first depth and a second pair of contacts is disposed at a second depth for electrically separating the contacts.
- 19. The switch assembly as set forth in claim 11 wherein the terminal housing comprises a cavity for rotatably receiving the contact assembly, and wherein the front panel comprises a groove defining first and second stopwalls, wherein the actuator head comprises a protrusion for cooperatively engaging the groove and for limiting movement of the actuator between the loaded and bypass positions, and wherein engagement between the first stopwall and the protrusion locates the actuator in the bypass position and engagement between the second stopwall and the protrusion locates the actuator in the loaded position.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of application Ser. No. 08/753,797, filed Nov. 29, 1996, for a Switchable Load Coil Case, now U.S. Pat. No. 5,292,402.
US Referenced Citations (13)
Non-Patent Literature Citations (2)
Entry |
Brochure of Coil Sales & Manufacturing Company, a Charles Industries company, on Load Coil “Highest Performance Load Coil for Uninterrupted Reliability”; Aug. -1996. |
Brochure of Coil Sales & Manufacturing Company, a Charles Industries company, on Universal Case for Universal load coil cases; Jan. 1993. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
08/753797 |
Nov 1996 |
US |
Child |
09/337137 |
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US |