US3622938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric power distribution device
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1969-12-04
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Granted: 1971-11-23
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Expires: 1989-12-04
Abstract
Abstract The invention provides a connector means adaptable for both mutual interconnection between electric power distribution ducts and power feed-in connection of a feed-in member to one of the ducts. The means comprises an insulative base member having at least one endwise projection and containing at least a pair of contactors extending in the same endwise direction. When the means is engaged to an end of the duct, said projection fits in a longitudinal space between respective opposing conductors in the duct or respective conductors and respective sidewalls of a duct housing so as to have the means mechanically held to the duct end, while said contactors enter into resilient electric contact with the respective conductors of the duct. When the connector means is used for the power feed-in connection, the contactors are connected at the other end to power source lines and, when used for the mutual interconnection of ducts, the means is provided with the projections and contactors respectively symmetrically extending in both endwise directions.
Inventors
- 👤 Masamichi Ito
- 👤 Yoshiyuki Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:45
CPC Classifications
H; H01; H01R; H01R25/00; H01R25/14; H01R25/145
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
321 words
A connector device for electric power distribution ducts having respectively a pair of opposing longitudinal conductors respectively held in a duct housing through a pair of insulative members positioned to insulate said conductors from said duct housing, said conductors being laterally spaced from each other to form a longitudinal space therebetween within said housing, said conductors and said insulating members extending longitudinally beyond one end of the duct housing, said connector device comprising a base member of an insulative material provided with at least one longitudinal projection on one end thereof and a pair of longitudinal grooves substantially along each sidewall, the other end of said base member being adapted to receive leads from an electric source, a pair of resilient contactor members respectively fitted in each of said grooves of said base member and forming contacting parts extending longitudinally along opposite sides of said projection and terminating short of the end of said projection, said contactor members having terminal members at the ends opposite the ends forming said contacting parts for connecting said contactor members to said leads, and a single unitary covering member removably attached to said base member and covering the entirety of said contactor members, said projection of the base member being complementary to said longitudinal space formed between said conductors so that, when the connector is engaged to an end of the duct, said projection is closely fitted in said longitudinal space for firm mechanical coupling between the connector device and the duct, said resilient contactor members being positioned to engage only the longitudinal extensions of said opposed surfaces of said conductors when said projection is fitted in said space, said contactor members also being laterally spaced from said projection so as to be deflected inwardly toward said projection upon engagement with said conductors whereby the contactor members are biased away from each other and Toward said conductors to maintain firm electrical contact with said conductors.
Claim 2
Dependent Claim
321 words
A connector device for electric power distribution ducts having respectively a pair of opposing longitudinal conductors respectively held in a duct housing through a pair of insulative members positioned to insulate said conductors from said duct housing, said conductors being laterally spaced from each other to form a longitudinal space therebetween within said housing, said conductors and said insulating members extending longitudinally beyond one end of the duct housing, said connector device comprising a base member of an insulative material provided with at least one longitudinal projection on one end thereof and a pair of longitudinal grooves substantially along each sidewall, the other end of said base member being adapted to receive leads from an electric source, a pair of resilient contactor members respectively fitted in each of said grooves of said base member and forming contacting parts extending longitudinally along opposite sides of said projection and terminating short of the end of said projection, said contactor members having terminal members at the ends opposite the ends forming said contacting parts for connecting said contactor members to said leads, and a single unitary covering member removably attached to said base member and covering the entirety of said contactor members, said projection of the base member being complementary to said longitudinal space formed between said conductors so that, when the connector is engaged to an end of the duct, said projection is closely fitted in said longitudinal space for firm mechanical coupling between the connector device and the duct, said resilient contactor members being positioned to engage only the longitudinal extensions of said opposed surfaces of said conductors when said projection is fitted in said space, said contactor members also being laterally spaced from said projection so as to be deflected inwardly toward said projection upon engagement with said conductors whereby the contactor members are biased away from each other and Toward said conductors to maintain firm electrical contact with said conductors.
Claim 3
Dependent Claim
44 words
The connector device according to claim 1, in which said base member is provided with another longitudinal projection at its opposite end to said projection so as to be symmetrical therewith, and said contactor members are provided with symmetrical contacting parts at both ends.
Claim 4
Dependent Claim
45 words
The connector device according to claim 1, in which said housing of the duct is made of a metal and is provided with at least one longitudinal hollow space between inner sidewalls of the housing and outer sidewalls of said insulative material for the conductors.
Claim 5
Dependent Claim
77 words
The connector device according to claim 1, in which said housing of the duct is made of a metal, and said base member of the connector device is provided with a grounding means fixed thereto at its outer sidewall and extending in at least one endwise direction of the device, so that when the device is engaged to an end of the duct said grounding means is brought into contact with the metal housing of the duct.
Claim 6
Dependent Claim
93 words
The connector device according to claim 1, in which said housing of the duct is made of a metal, said base member is provided with a grounding means fixed thereto at its outer sidewall and in at least one endwise direction of the device, and said endwise extending end of the grounding means has a roughened surface, so that when the device is engaged to an end of the duct said roughened surface of the grounding means scratches the inner surface of said metal housing so as to closely contact with the housing.
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |