Patent US3544965A successfully refreshed from Google Patents.
US3600531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-shorting phono plug
Assignee: NAT TEL TRONICS CORP
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Filing: 1970-05-08
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Granted: 1971-08-17
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Expires: 1990-05-08
Abstract
Abstract A self-shorting plug for use in connection with a phonojack including a conventionally configured centrally disposed prong, a surrounding outer body member, and a flat steel shorting spring staked at one end thereof to the border of a centrally disposed opening in said outer body member, and having a free end terminal penetrating a slotted opening in a skirt portion of said outer body member to contact a surface of said prong.
Inventors
- 👤 Otto Hoegerl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:32
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/70; H01R13/703; H01R13/7031
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
135 words
A self-shorting plug for use with a corresponding jack comprising: a centrally disposed prong; a cup-shaped outer body member surrounding said prong; insulating washer means interconnecting said prong and said outer body member; said outer body member having a centrally disposed orifice therein, and spring mounting means surrounding said orifice, said body member having a slotted skirt generally coaxially surrounding said prong; and a shorting spring interconnected at one end thereof to said spring mounting means, and having a second end projecting through said slotted skirt to resiliently contact a surface of said prong; said spring being of planar configuration, and including a first end portion having a generally circular opening therein, an arcuate portion connected to said first end portion, and a second end portion penetrating said slotted skirt connected to said arcuate portion.
Claim 2
Dependent Claim
135 words
A self-shorting plug for use with a corresponding jack comprising: a centrally disposed prong; a cup-shaped outer body member surrounding said prong; insulating washer means interconnecting said prong and said outer body member; said outer body member having a centrally disposed orifice therein, and spring mounting means surrounding said orifice, said body member having a slotted skirt generally coaxially surrounding said prong; and a shorting spring interconnected at one end thereof to said spring mounting means, and having a second end projecting through said slotted skirt to resiliently contact a surface of said prong; said spring being of planar configuration, and including a first end portion having a generally circular opening therein, an arcuate portion connected to said first end portion, and a second end portion penetrating said slotted skirt connected to said arcuate portion.
Claim 3
Dependent Claim
29 words
Structure in accordance with claim 1, said circular opening having a corrugated edge secured to said outer body member by staking of an edge of said centrally disposed orifice.
References Cited (Backward Citations)
US3045079A
Cited
US3387104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |