US2014056A - Plug socket - Google Patents

Plug socket Download PDF

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Publication number
US2014056A
US2014056A US10574A US1057435A US2014056A US 2014056 A US2014056 A US 2014056A US 10574 A US10574 A US 10574A US 1057435 A US1057435 A US 1057435A US 2014056 A US2014056 A US 2014056A
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US
United States
Prior art keywords
contact
casing
contact members
pin
socket
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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
US10574A
Inventor
Jan Willem Van Noorden
Original Assignee
Jan Willem Van Noorden
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
Priority to NL2014056X priority Critical
Application filed by Jan Willem Van Noorden filed Critical Jan Willem Van Noorden
Application granted granted Critical
Publication of US2014056A publication Critical patent/US2014056A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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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
    • H01R13/02Contact members
    • H01R13/15Pins, blades or sockets having separate spring member for producing or increasing contact pressure

Description

Sept, 10, 1935.

J. W. VAN NOORDEN PLUG SOCKET Filed March 11, 1955 Patented Sept. .10, 1935 UNITED STATES PATENT OFFICE PLUG SOCKET Jan Willem van Noorden, The Hague, Netherlands Application March 11, 1935, Serial No. 10,574 In the Netherlands February 23, 1934 2 Claims.

5 with plug sockets are to be provided with solid pins and consequently the said sockets must needs comprise resilient contact members for receiving the pins.

Several constructions for plug sockets of this kind have been proposed already, but they have the disadvantage that they do not provide a good contact surface between the pins and the contact members in the socket, which may cause overheating of the contact surfaces, formation of sparks at the points of contact and will not always guarantee absolute safety of operation. An-

' other disadvantage is that on account of the insuflicient friction between the pins and the contact members in the socket, the contact plug may I be too readily withdrawn from the socket. Moreover, the greater part of the known plug sockets are not suitable for use with contact pins of different cross sections. In these constructions the action of the spring has always been exerted in a direction perpendicular to that in which the plug pins were inserted into the socket, which never produced satisfactory results.

The invention has for its purpose to provide a socket which does not possess the above mentioned disadvantages, which can be manufactured at a very small expense and which can be easily mounted in an insulating member. Moreover the construction according to the invention complies with all the provisions of safety boards and similar institutions, which hitherto has not been the case with any of the known devices of this nature.

According to the invention the socket proper comprises one or more contact members which members together form a cylindrical sleeve for the contact pin, and which are pressed towards each other under the action of a spring, and after the insertion of the pin always remain absolutely parallel to each other.

According to the invention the contact members are enclosed in a casing which has an opening at the top for inserting the pin, the edges of the said opening being conical with the angle of inclination corresponding to that of the conical end surfaces of the contact members, whilst a spring is provided inside the casing acting from below against the bottom part of the contact members. There also may be provided below the contact members a member with a conical surface which is pressed by means of the said spring against the bottom part of the contact members, which in that case are each provided with a corresponding conical edge.

The accompanying drawing shows an embodi- 5 ment of the invention according to the latter constructions.

Fig. 1 represents a contact casing with associated parts, to be used in a plug socket according to the invention, at the moment of inserting the 10 contact pin.

Fig. 2 is the same casing after the contact pin has been completely inserted.

The contact casing comprises a casing i, having a cylindrical inner surface and an opening at the top for inserting a cylindrical contact pin 2. The inner edge of the opening in the casing I presents a conical surface and this conical surface 3 gradually merges into the cylindrical inner surface.

The lower part of the casing l is provided with interior screw threads 6 for screwing in a plug 5 which may contain, for example, a terminal 6.

In the casing l a spring 1 is provided supporting a bowl-shaped member 8 slidingly fitted into the casing and having at its upper end a downwardly inclined conical surface 9. Between the conical surface 3 and the conical surface 9 there are provided two approximately semi-cylindrical contact members HG, i l, the upper and lower edges of which have conical surfaces l2 and i3 respectively, the angle of inclination of which correponds to that of the surfaces 3 and 8.

When the contact pin 2 is being inserted, the contact members it and ii, together with the bowl 8 will be first moved downwardly a little, against the action of the spring l, which will allow them to move apart so far that the pin 2 may be inserted into the opening between the same. At first the contact members iii and l i which are 40 supported by the conical surface 9, will take an inclined position with regard toeach other, as indicated in Fig. 1. When the pin 2 is inserted further (vide Figure 2) the contact members Ill and. l i will again be located parallel to each other and against the cylindrical surface of the pin 2, as the conical surfaces It will move upwardly along the conical surface 9.

It is evident from the above that under all circumstances the contact members will provide a large contact surface with the contact pin and that on account of this large contact surface the friction between the contacting members and the contact pinwill be sufficiently great. Even when a contact pin of a smaller cross section is action exerted on the contact members by the conical surfaces 3 and 9.

I claim:

1. In an electrical socket, a hollow casing having an entrance for the insertion of a pin and a bevelled inner surface adjacent said entrance. a sliding member within said casing having a complementary bevelled surface facing said entrance, a plurality of contact members between said bevelled surfaces forming a group with opposed contact faces to receive the pin and having bevelled ends cooperating with said bevelled surfaces, and a spring in said casing pressing said sliding member against said contact members and said contact members into gripping relation. 5

2. An electrical socket as described in claim 1, wherein said casing has a cylindrical interior and said sliding member is in the form of a cylindrical block slidably fitting in said casing and having a cup-shaped conical surface facing said entrance. 10

JAN WILLEM VAN NOORDEN.

US10574A 1934-02-23 1935-03-11 Plug socket Expired - Lifetime US2014056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2014056X 1934-02-23

Publications (1)

Publication Number Publication Date
US2014056A true US2014056A (en) 1935-09-10

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Family Applications (1)

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US10574A Expired - Lifetime US2014056A (en) 1934-02-23 1935-03-11 Plug socket

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506967A (en) * 1947-04-04 1950-05-09 Benjamin F Nauslar Electric plug
US2668187A (en) * 1949-06-17 1954-02-02 Dayton Aircraft Prod Inc Lead through insulator
US3116400A (en) * 1960-02-26 1963-12-31 Wiegand Co Edwin L Electric heaters
US3989341A (en) * 1974-10-07 1976-11-02 Kearney-National, Inc. Electric connector apparatus and method
US4105280A (en) * 1976-04-26 1978-08-08 Thompson Jr Lloyd E High current density electrical contact
US4591222A (en) * 1984-08-31 1986-05-27 Amp Incorporated Limited insertion force contact terminals and connectors
US4655526A (en) * 1984-08-31 1987-04-07 Amp Incorporated Limited insertion force contact terminals and connectors
US4797126A (en) * 1986-06-24 1989-01-10 Hewlett-Packard Company Adjustable length slotless female contact for connectors
US4906210A (en) * 1988-08-15 1990-03-06 Imo Delaval Incorporated Electrical connector with improved contact
US20070099500A1 (en) * 2005-08-31 2007-05-03 Tonis Pilvisto Endoscope

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506967A (en) * 1947-04-04 1950-05-09 Benjamin F Nauslar Electric plug
US2668187A (en) * 1949-06-17 1954-02-02 Dayton Aircraft Prod Inc Lead through insulator
US3116400A (en) * 1960-02-26 1963-12-31 Wiegand Co Edwin L Electric heaters
US3989341A (en) * 1974-10-07 1976-11-02 Kearney-National, Inc. Electric connector apparatus and method
US4105280A (en) * 1976-04-26 1978-08-08 Thompson Jr Lloyd E High current density electrical contact
US4591222A (en) * 1984-08-31 1986-05-27 Amp Incorporated Limited insertion force contact terminals and connectors
US4655526A (en) * 1984-08-31 1987-04-07 Amp Incorporated Limited insertion force contact terminals and connectors
US4797126A (en) * 1986-06-24 1989-01-10 Hewlett-Packard Company Adjustable length slotless female contact for connectors
US4906210A (en) * 1988-08-15 1990-03-06 Imo Delaval Incorporated Electrical connector with improved contact
US20070099500A1 (en) * 2005-08-31 2007-05-03 Tonis Pilvisto Endoscope
US7846090B2 (en) * 2005-08-31 2010-12-07 Karl Storz Gmbh & Co. Kg Endoscope

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