US4797122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drip-proof connector
Assignee: DDK Ltd
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Filing: 1988-03-31
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Granted: 1989-01-10
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Expires: 2008-03-31
Abstract
Abstract A drip-proof connector is used in connection between electric cables or the like and electric and electronic appliances such as cameras for televisions, servomotors for machine tools and the like. An insert of the connector is adapted to abut against an inwardly extending annular flange provided on an inside of a connector shell. With this arrangement, the drip-proof connector is simply and easily assembled or disassembled in fields without using particular tools and has a sufficient drip-proof property.
Inventors
- 👤 Sadao Kuboi
- 👤 Tomonari Ohtsuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:19
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/5202
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
101 words
A drip-proof connector including at least one contact, an insert having said contact inserted therein, and a shell enclosing said insert, wherein said insert consists of a front insert having a rubber-like elasticity and a rear insert having no rubber-like elasticity, diameters of said front and rear inserts being not more than an inner diameter of the shell, said shell being provided in its inside with an inwardly extending flange whose inner diameter is smaller than the diameter of said front insert, and a pressing cover is provided on said shell on a side of a contact tail of said contact.
Claim 2
Dependent Claim
101 words
A drip-proof connector including at least one contact, an insert having said contact inserted therein, and a shell enclosing said insert, wherein said insert consists of a front insert having a rubber-like elasticity and a rear insert having no rubber-like elasticity, diameters of said front and rear inserts being not more than an inner diameter of the shell, said shell being provided in its inside with an inwardly extending flange whose inner diameter is smaller than the diameter of said front insert, and a pressing cover is provided on said shell on a side of a contact tail of said contact.
Claim 3
Dependent Claim
40 words
A drip-proof connector as set forth in claim 1, wherein said front insert is provided with an annular shoulder arranged on a surface of the front insert abutting against said inwardly extending flange and to be fitted in said flange.
Claim 4
Dependent Claim
46 words
A drip-proof connector as set forth in claim 1, wherein said rear insert is provided with a recess in its surface abutting against the front insert, and said contact is provided with an enlarged portion which is snugly fitted in said recess of the rear insert.
Claim 5
Dependent Claim
31 words
A drip-proof connector as set forth in claim 1, wherein said front insert is provided with an annular ridge on its surface abutting against the inwardly extending flange of the shell.
Claim 6
Dependent Claim
23 words
A drip-proof connector as set forth in claim 1, wherein a pressing member is interposed between the rear insert and the pressing cover.
Claim 7
Dependent Claim
18 words
A drip-proof connector as set forth in claim 2, wherein said pressing member is an annular wave-like spring.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |