US2061190A - Electric plug connecter - Google Patents
Electric plug connecter Download PDFInfo
- Publication number
- US2061190A US2061190A US386048A US38604829A US2061190A US 2061190 A US2061190 A US 2061190A US 386048 A US386048 A US 386048A US 38604829 A US38604829 A US 38604829A US 2061190 A US2061190 A US 2061190A
- Authority
- US
- United States
- Prior art keywords
- shell
- block
- cord
- electric plug
- prong
- 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
Links
- 239000004020 conductor Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920001800 Shellac Polymers 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
Definitions
- Connecters such as are employed for portable electric devices, are customarily of molded composition, and are subject to the objection of breakability, such difliculty occasioning more or less annoyance and delay and in some instances danger. Where the contactprongs are secured by riveting moreover, theleverage is often such as to spring the prong out of alignment, thus resulting in annoyance to the user, and frequently breakage in efiorts at straightening. A construction avoiding such difilculties, and making possible a durable and well-sealed connecter is accordingly of fundamental importance and h hly desirable.
- FIG. 1 is an axial sectional view of a connecter in accordance with the present invention
- Fig. 2 is a similar view of a-modification
- Fig. 3 is an end view of the same
- Figs. 4, 5, 6, 7, and 8 are axial sectional views of modified forms, portions being'broken away
- Fig. 9 is an end view of the construction shown in Fig. 8.
- a-connecter having a shell 2 with an opening 3 to receive the conductor cable or cord. While the shape of the shell may vary considerably, ordinarily a generally conoidal form is desirable, the cord-admitting opening being at the apex end. For the further protection of the cord adjacent the point of entry, I contemplate in some instances applying also an extension sleeve l of flexible character. Prefer ably, this is in the form of a soft rubber extension, and where theentire shell 2 is made up of soft rubber or cushion rubber, as isusually desirable, such sleeve may be an integral extension from the apex end of the shell member. For ease of handling, it is desirable also in most cases to shape the end of the shell with a finger-grip.
- the inlet opening for the cord will afford resiliency'such as' to' effectively seal against the cord, thereby preventing chance entry of moisture.
- a rubber bushing may be employed if desired to effect such sealing.
- strain-relieving 5 means may be incorporated with the cord, a ledge 'or internal shoulder 6 being desirably provided for .this purpose within the shell, and the cord may be knotted so as to engage thereagainst, or
- a washer I may be carried on the cord and re- 10 tained by a knot therein, or a ring I may be clamped tightly upon the cable or cord such as to seat against the shoulder 6 when drawn back into normal position.
- the contact prongs B of suitable metal, for
- a groove on one member to receive a projection of the other member may be provided if desired, as for instance a groove on one member to receive a projection of the other member.
- the projection 20 may be on the prong-carrying block, and the groove or recess in the shell.
- a lip or inwardly directed ledge iii may be provided near the end of the shell such that the contact carrying block 9 may be shoved into the end of the shell and snapped back of the slightly resilient lip and be held tightly therebeyond.
- the point of a screw driver or the like can be forced down in between the block and the shell to allow of prying action and the block may be lifted up and out.
- the precise form of the interengaging surfaces of the block and the shell may of course vary, and as shown for instance 'inFig. ,'the prong-carrying block may have a bead E2 to seat into a corresponding groove. in the shell. 0r vice versa, as in Fig. 5, the bead 112' may be provided on the shell, and the groove on the block 8d.
- a screw threaded engagement as in Fig. 6, may be provided, the block 9? and the shell 2] being respectively screw threaded.
- the shell may be threaded externally, as in Fig. 7, a cap it being correspondingly screw threaded to engage the shell 2g, the cap it having an inwardly directed flange it to overlie the prong-carrying block to.
- the prong-carrying block is now moved back.
- An electric plug connector consisting of a plurality of metal prong members formed at one end as plug jacks and having at the other end terminals to receive conductor wires, an elastic hollow rubber support-body and means received in said hollow body for spacing and anchoring said metal prongs, including a block embedding and enclosing said metal prongs with the jack ends projecting from one side and the terminals projecting from the other side of said block, the thickness of said block being sufi'icient to anchor said prongs to said block, the terminal ends thickness of said hloclr being sumcient to an-' chor said prongs to said block, the terminal ends of said prong members standing free within the hollow chamber of the support body, and wedging means on block for spreading the supportbody for entry or" the block when assembled,
Landscapes
- Cable Accessories (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Description
Nov. 17, 1936.
ELECTRIC PLUG CONNECTER Filed Aug. 15, 1929 INVENTOR Fly. 7 BY ATTORNEYS E. 0. ERICSON 2,
Patented cv. i7, 193
are FLUG commc'raa Edward 0. Ericson, Cleveland Heightsfflhio Application Ant 15, 1929, Serial N0. 386,049
2 Claims. (oi. ire-s61) Connecters such as are employed for portable electric devices, are customarily of molded composition, and are subject to the objection of breakability, such difliculty occasioning more or less annoyance and delay and in some instances danger. Where the contactprongs are secured by riveting moreover, theleverage is often such as to spring the prong out of alignment, thus resulting in annoyance to the user, and frequently breakage in efiorts at straightening. A construction avoiding such difilculties, and making possible a durable and well-sealed connecter is accordingly of fundamental importance and h hly desirable.
To the accomplishment of the foregoing and related ends, the invention, then, consists ofthe features hereinafter fully described, and particularly pointed out in the claims, the following description and the annexed drawing setting 9 forth in detail certain structure embodying the invention, such being illustrative however of but a few of the various ways in which the principle of the invention may be employed.
In said annexed drawing:
5 Fig. 1 is an axial sectional view of a connecter in accordance with the present invention; Fig. 2 is a similar view of a-modification; Fig. 3 is an end view of the same; Figs. 4, 5, 6, 7, and 8 are axial sectional views of modified forms, portions being'broken away; and Fig. 9 is an end view of the construction shown in Fig. 8.
Referring more particularly to the drawing, there is shown a-connecter having a shell 2 with an opening 3 to receive the conductor cable or cord. While the shape of the shell may vary considerably, ordinarily a generally conoidal form is desirable, the cord-admitting opening being at the apex end. For the further protection of the cord adjacent the point of entry, I contemplate in some instances applying also an extension sleeve l of flexible character. Prefer ably, this is in the form of a soft rubber extension, and where theentire shell 2 is made up of soft rubber or cushion rubber, as isusually desirable, such sleeve may be an integral extension from the apex end of the shell member. For ease of handling, it is desirable also in most cases to shape the end of the shell with a finger-grip.
enlargement 8. V
Where the entire shell is made up of cushion rubber, the inlet opening for the cord will afford resiliency'such as' to' effectively seal against the cord, thereby preventing chance entry of moisture. If the ll be made of material other cushion rubber, a rubber bushing may be employed if desired to effect such sealing. I
For relieving the conductor cable or cord of strain onto the contact connections in event that the cord be forcibly pulled, strain-relieving 5 means may be incorporated with the cord, a ledge 'or internal shoulder 6 being desirably provided for .this purpose within the shell, and the cord may be knotted so as to engage thereagainst, or
a washer I may be carried on the cord and re- 10 tained by a knot therein, or a ring I may be clamped tightly upon the cable or cord such as to seat against the shoulder 6 when drawn back into normal position.
The contact prongs B, of suitable metal, for
ing block with the prongs anchored thereto, a.
highly advantageous separable unit is had, permitting changes, repairs or renewals without requirement of scrapping the entire shell also. Additional means to prevent relative turning may be provided if desired, as for instance a groove on one member to receive a projection of the other member. For example, the projection 20 may be on the prong-carrying block, and the groove or recess in the shell. I further contemplate sealing the device by engagement of the prong-carrying block with the shell, such as to exclude moisture, dirt, etc. Where the shell is of cushion rubber, a lip or inwardly directed ledge iii may be provided near the end of the shell such that the contact carrying block 9 may be shoved into the end of the shell and snapped back of the slightly resilient lip and be held tightly therebeyond. In the event of necessity of removal, the point of a screw driver or the like can be forced down in between the block and the shell to allow of prying action and the block may be lifted up and out. The precise form of the interengaging surfaces of the block and the shell may of course vary, and as shown for instance 'inFig. ,'the prong-carrying block may have a bead E2 to seat into a corresponding groove. in the shell. 0r vice versa, as in Fig. 5, the bead 112' may be provided on the shell, and the groove on the block 8d. Where the shell is made up of nonresilient material, a screw threaded engagement, as in Fig. 6, may be provided, the block 9? and the shell 2] being respectively screw threaded. Or, the shell may be threaded externally, as in Fig. 7, a cap it being correspondingly screw threaded to engage the shell 2g, the cap it having an inwardly directed flange it to overlie the prong-carrying block to.
1 Again, if desired, a bayonet-type of engagement the electric cable or cord C is inserted through the opening 3 of the shell and is drawn through sumciently to allow the manipulation of knotting or applying the strain-=carrying element or abutment, and the ends of the conductors are secured to the respective inner ends of the prongs 8 bysuitabie means, as for instance, screws ill. The prong-carrying block is now moved back. into position within the shell, snapping hack into place if the shell be of elastic material, or Iselng screw thrcadedly or rotativeiy' positioned in the case of the non-resilient material shellac At the same time, the cord is drawn leach, ta ng out the slash to the point of engagemen etween the strain-carrying element and the li shell. The plug is new efi'ectively sea (Ether modes of applying the pri aoemeo invention may be employed, change being made as regards the details disclosed, provided the means stated in any of the following claims, or the equivalent of such, be employech Itherefore particularly point out and distinctly claim as my invention:
1. An electric plug connector, consisting of a plurality of metal prong members formed at one end as plug jacks and having at the other end terminals to receive conductor wires, an elastic hollow rubber support-body and means received in said hollow body for spacing and anchoring said metal prongs, including a block embedding and enclosing said metal prongs with the jack ends projecting from one side and the terminals projecting from the other side of said block, the thickness of said block being sufi'icient to anchor said prongs to said block, the terminal ends thickness of said hloclr being sumcient to an-' chor said prongs to said block, the terminal ends of said prong members standing free within the hollow chamber of the support body, and wedging means on block for spreading the supportbody for entry or" the block when assembled,
EDWARD Q. ERICSCIL
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US386048A US2061190A (en) | 1929-08-15 | 1929-08-15 | Electric plug connecter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US386048A US2061190A (en) | 1929-08-15 | 1929-08-15 | Electric plug connecter |
Publications (1)
Publication Number | Publication Date |
---|---|
US2061190A true US2061190A (en) | 1936-11-17 |
Family
ID=23523934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US386048A Expired - Lifetime US2061190A (en) | 1929-08-15 | 1929-08-15 | Electric plug connecter |
Country Status (1)
Country | Link |
---|---|
US (1) | US2061190A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2977456A (en) * | 1959-05-13 | 1961-03-28 | Theodor H Stiebel | Miniature immersion heaters with watertight handles enclosing switching means |
US3137535A (en) * | 1961-02-21 | 1964-06-16 | Amp Inc | Electrical connection insulating housings |
US3617981A (en) * | 1969-12-15 | 1971-11-02 | Woodhead Co Daniel | Heavy duty electrical plug |
US3721947A (en) * | 1972-07-13 | 1973-03-20 | E Robin | Battery terminal guard |
US3912351A (en) * | 1973-06-19 | 1975-10-14 | Bosch Gmbh Robert | Electrical connecting arrangement |
-
1929
- 1929-08-15 US US386048A patent/US2061190A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2977456A (en) * | 1959-05-13 | 1961-03-28 | Theodor H Stiebel | Miniature immersion heaters with watertight handles enclosing switching means |
US3137535A (en) * | 1961-02-21 | 1964-06-16 | Amp Inc | Electrical connection insulating housings |
US3617981A (en) * | 1969-12-15 | 1971-11-02 | Woodhead Co Daniel | Heavy duty electrical plug |
US3721947A (en) * | 1972-07-13 | 1973-03-20 | E Robin | Battery terminal guard |
US3912351A (en) * | 1973-06-19 | 1975-10-14 | Bosch Gmbh Robert | Electrical connecting arrangement |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HUNTINGTON NATIONAL BANK, THE, OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ERICSON MANUFACTURING CO., THE;REEL/FRAME:011796/0585 Effective date: 20010418 |