US2082986A - Protected terminal - Google Patents

Protected terminal Download PDF

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Publication number
US2082986A
US2082986A US52539A US5253935A US2082986A US 2082986 A US2082986 A US 2082986A US 52539 A US52539 A US 52539A US 5253935 A US5253935 A US 5253935A US 2082986 A US2082986 A US 2082986A
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US
United States
Prior art keywords
terminal
sleeve
stud
shoulder
insulating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US52539A
Inventor
Joseph H Staley
Original Assignee
Joseph H Staley
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Joseph H Staley filed Critical Joseph H Staley
Priority to US52539A priority Critical patent/US2082986A/en
Application granted granted Critical
Publication of US2082986A publication Critical patent/US2082986A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44Means for preventing access to live contacts
    • H01R13/447Shutter or cover plate
    • H01R13/453Shutter or cover plate opened by engagement of counterpart
    • H01R13/4538Covers sliding or withdrawing in the direction of engagement
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/22Contacts for co-operating by abutting
    • H01R13/24Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00Two poles

Description

June 8, 1937.
J. H. STIALEAY PROTECTED TERMINAL File d Dec. 2,
U E! A! 2 SheetsSheet l v Aborfiegs.
June 8, 1937.
J. H. STALEY PROTECTED TERMINAL Filed Dec. 2, 1955 Sheets-Sheet 2 [III s3 [flue/7504 Jozajep/v H Sid/6g.
r Alia/megs.
a a w a W M n 7 .9 w
Patented June 8,, 1937 UNITED STATES:
PATENT OFFICE ammo This invention relates to electrical terminals and has for its primary objectthe provision of means to cover the terminals against accidental contact therewith by operators, but at the same time permitting the connecting of said terminals to the devices without having to employ means for uncovering the terminals or making them available. A further important object of the invention is to provide an operation whereby the terminal may be directly presented against the device to be connected and by simple pressure cause the terminal to be uncovered and connect with that device. Another important object of the invention is to provide a very simple as well as durable structure which may be produced at relatively low cost thereby permitting wide-spread use of the invention in order to further promote safety in making electrical connections where the terminals must necessarily be live.
These and other objects and advantages of the invention will become apparent to those versed in the art in the following description made in accordance with the accompanying drawings, in
which Fig. 1 is aside elevation of a structu e embodying my invention; I
Fig. 2, an end elevation;
Fig. 3, a central longitudinal section on the line 3-3 in Fig.1;
Fig. 4, an end elevation of a modified form;
Fig. 5. a central longitudinal'section on the line 5-5 in Fig. 4;
Fig. 6, a top plan view; Fig. I, a further modified form in central longitudinai section; and
Fig. 8, a central longitudinal section 01' the last modified form as engaged in a receiving receptacle. Like characters of reference indicate like parts throughout the several views in the drawings.
In that form of the invention as shown in Figs. 1-3, I provide a. body III made of some suitable insulating material, here shown as being. cylindrical in shape, although not necessarily so, and having a central bore I I entering therein from one end. I form a terminal I! to have an annular flange i3 with a stud l| extending axially therefrom.
This stud I4 is screwthreaded on its rear end and is also provided with a central bore entering from that end to receive therein the end of a conductor l5 which may be sweated or soldered in place and if desired further retained 55 by pressing inwardly a portion of the stud, as at ".to be embedded in the conductor ii to prevent its withdrawal from within that end of the stud. A sleeve ll made of any suitable insulating material is formed to have a sliding fit within the bore ll of the body In and further to have an axial bore through its rear end permitting the stud I to slide freely therethrough and screwthreadedly engage in the body ill at the rear end of the bore II to have the conductor l5 extend outwardly from the rear end of the body I. The
sleeve I1 is further formed to have an enlarged bore through its major length receiving the flange IS with a sliding fit therealong so that the outward travel of the sleeve I! along the stud I4 is limited by the shoulder produced at the end of the enlarged bore striking the rear side of the flange I3. A spring I8 is carried within the body l0 surrounding the stud l4 as a means for urging thesleeve I! to its outermost position as indicated in Fig. 3. The length of the sleeve I1 is made to be such that it will carry therewithin the connecting end of the terminal l2.
In the form herein shown, the terminal I 2 is provided with a transverse slit l9 to provide primarily for a resilient connection of the terminal in the socket of the device (not shown) to which the terminal is to be applied. This slit l 9 may be further employed as a means for revolving the terminal H. by some such instrument as a screwdriver to cause the stud Hi to be firmly fitted by its serewthreaded end on the body Ill. The terminal I2 is made available throughout its length --back to the flange l3 by direct pushing of the body I 0 toward the device intended to receive the terminal so as to have the outer end of the sleeve I! bear thereagainst and be carried back into the body Ill causing the terminal thereby to relatively extend outwardly therefrom. Of course, when the terminal is withdrawn from that device, the sleeve I! will immediately move out and cover over the terminal end 12 under the influence of the spring l8.
In the form of the invention as shown in Figs. 4-6, a pair of terminals l2 as indicated in the form shown in Figs. 1-3 are carried by a common vbody 28 so that both terminals may be operativeshown in m. '1 and a, the safety feature a carried still further. This form is similar to that in I'lgs.\1-8, but the terminal :2 corresponding to the terminal I! is provided witha tip a made 01' insulating material and, further, is placed to extend from the sleeve I! so as to serve as a pilot in entering the socket or female terminal 34. The tip 33 may be secured to the terminal 32 in any suitable manner, herein shown as being screwthreadedly attached.
When desired, means additional to the frictional grip may be employed to retain the terminal 32 in the female terminal 34. Such means may take the form of the customary spring grip as'indicated in Fig. 8, wherein the terminal 32 is provided with an annular groove 35 into which fall the shoulders 38 of the spring fingers 31 carried by the female terminal.
While I have herein shown and described my invention in the simplest form as now known to me, it is obvious that structural variations may be employed without departing from the spirit of the invention, and I, therefore, do not desire to be limited to that precise form beyond the limitations as may be imposed by the following claims.
I claim:
1. In a connecting terminal, an insulating body having a bore open at one end and partially closed at the other, the partially closed end having a threaded hole, an insulating sleeve slidably carried in the bore, said sleeve having an inside shoulder at its inner end, a metallic stud threaded at one end to screw into the threaded hole in the insulating body and having a shoulder between its ends, said stud assembled axially of the sleeve and body with the shoulder in the sleeve and a spring normally projecting the sleeve from the body into arresting contact with the shoulder on the stud.
2. In a connecting terminal, an insulating body having a bore open at one end and partially closed at the other, the partially closed end having a threaded hole, an insulating sleeve slidably carried in the bore, said sleeve having an inside shoulder at its inner end, a metallic stud threaded at one end to screw into the threaded hole in the'insulating body and having a shoulder between its ends, said: stud assembled axially of the sleeve and body with the shoulder in the sleeve and a spring normally projecting the sleeve fromthe body into arresting contact with the shoulder on the stud, said spring being carried in said bore behind said sleeve and surrounding said-stud.
3. In a connecting terminal, an insulating body having a bore open at one and partially and closed at the other, the partially closed end having a threaded hole, an insulating sleeve slidably carried in the bore, said sleeve having an inside shoulder at its inner end, a metallic stud threaded at one end to screw into the threaded hole in the insulating body and having a shoulder between its ends, said stud assembled axially of the sleeve and body with the shoulder in the sleeve and a spring normally projecting the sleeve from the body into arresting contact with the shoulder on the stud, and an insulating member on the outer end of the stud normally projecting aportion at least from said sleeve and to serveas a, pilot.
JOSEPH H. STALEY.
US52539A 1935-12-02 1935-12-02 Protected terminal Expired - Lifetime US2082986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US52539A US2082986A (en) 1935-12-02 1935-12-02 Protected terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52539A US2082986A (en) 1935-12-02 1935-12-02 Protected terminal

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US2082986A true US2082986A (en) 1937-06-08

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US52539A Expired - Lifetime US2082986A (en) 1935-12-02 1935-12-02 Protected terminal

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448832A (en) * 1943-09-14 1948-09-07 Donald S Ross Pin anchored electric outlet and switch
US2450271A (en) * 1945-03-07 1948-09-28 Edison Inc Thomas A Electrical connector
US2501674A (en) * 1944-12-16 1950-03-28 Mec Elec Engineering Co Electrical coupling
US2591437A (en) * 1946-12-21 1952-04-01 Jun Erik Haugsrud Coupling device for electric cables
US2651024A (en) * 1950-01-31 1953-09-01 Rosalie E Miller Cold cathode illuminating assembly and insulator housing therefor
US3082396A (en) * 1960-07-27 1963-03-19 Frank L Bernhard Automatic electrical connection device
US3202953A (en) * 1963-01-07 1965-08-24 Abbey Electronics Corp Electrical connector
US3629790A (en) * 1970-12-04 1971-12-21 Raymond Lee Organization Inc No shock electric plug
US3754205A (en) * 1971-05-19 1973-08-21 Lenmark Enterprises Inc Protected connector plug
US3839697A (en) * 1972-02-11 1974-10-01 Burndy Electra Spa Connector for automatically establishing electric connections between vehicles, particularly between railroad vehicles
US5030119A (en) * 1989-09-27 1991-07-09 Safe Care Products, Inc. Safety plug
US5599196A (en) * 1995-05-01 1997-02-04 Powell; Patti J. Electrical plug safety cover
US6167291A (en) * 1998-03-12 2000-12-26 Cardima, Inc. Protected pin connector for an electrophysiology catheter
WO2006133824A1 (en) * 2005-06-15 2006-12-21 Daimlerchrysler Ag External starting point
US8641446B1 (en) * 2012-07-27 2014-02-04 Chin Nan Precision Electronics Co., Ltd. Coaxial probe
US20150031237A1 (en) * 2011-10-25 2015-01-29 Perfectvision Manufacturing, Inc. Coaxial Barrel Fittings and Couplings with Ground Establishing Traveling Sleeves
US9040822B2 (en) 2011-03-12 2015-05-26 Ricardo Nieto Lopez Safety device for live electrical wire
US10938141B2 (en) * 2019-05-21 2021-03-02 Tai Kien Charger safety cover

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448832A (en) * 1943-09-14 1948-09-07 Donald S Ross Pin anchored electric outlet and switch
US2501674A (en) * 1944-12-16 1950-03-28 Mec Elec Engineering Co Electrical coupling
US2450271A (en) * 1945-03-07 1948-09-28 Edison Inc Thomas A Electrical connector
US2591437A (en) * 1946-12-21 1952-04-01 Jun Erik Haugsrud Coupling device for electric cables
US2651024A (en) * 1950-01-31 1953-09-01 Rosalie E Miller Cold cathode illuminating assembly and insulator housing therefor
US3082396A (en) * 1960-07-27 1963-03-19 Frank L Bernhard Automatic electrical connection device
US3202953A (en) * 1963-01-07 1965-08-24 Abbey Electronics Corp Electrical connector
US3629790A (en) * 1970-12-04 1971-12-21 Raymond Lee Organization Inc No shock electric plug
US3754205A (en) * 1971-05-19 1973-08-21 Lenmark Enterprises Inc Protected connector plug
US3839697A (en) * 1972-02-11 1974-10-01 Burndy Electra Spa Connector for automatically establishing electric connections between vehicles, particularly between railroad vehicles
US5030119A (en) * 1989-09-27 1991-07-09 Safe Care Products, Inc. Safety plug
US5599196A (en) * 1995-05-01 1997-02-04 Powell; Patti J. Electrical plug safety cover
US6167291A (en) * 1998-03-12 2000-12-26 Cardima, Inc. Protected pin connector for an electrophysiology catheter
WO2006133824A1 (en) * 2005-06-15 2006-12-21 Daimlerchrysler Ag External starting point
US9040822B2 (en) 2011-03-12 2015-05-26 Ricardo Nieto Lopez Safety device for live electrical wire
US20150031237A1 (en) * 2011-10-25 2015-01-29 Perfectvision Manufacturing, Inc. Coaxial Barrel Fittings and Couplings with Ground Establishing Traveling Sleeves
US9490592B2 (en) * 2011-10-25 2016-11-08 Perfectvision Manufacturing, Inc. Coaxial barrel fittings and couplings with ground establishing traveling sleeves
US8641446B1 (en) * 2012-07-27 2014-02-04 Chin Nan Precision Electronics Co., Ltd. Coaxial probe
US10938141B2 (en) * 2019-05-21 2021-03-02 Tai Kien Charger safety cover

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