USRE36829E - Bridged electrical plug - Google Patents
Bridged electrical plug Download PDFInfo
- Publication number
- USRE36829E USRE36829E US08/703,971 US70397196A USRE36829E US RE36829 E USRE36829 E US RE36829E US 70397196 A US70397196 A US 70397196A US RE36829 E USRE36829 E US RE36829E
- Authority
- US
- United States
- Prior art keywords
- bridge portion
- power
- plug
- slots
- power bridge
- 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
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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding with earth pin, blade or socket
Definitions
- This invention relates to electrical plugs, and more particularly to such plugs with a novel bride supporting and separating the power blades from each other, and the ground prong from both.
- Plugs with two power blades and a ground prong are known in the prior art, as are use in the blades of folded and embossed (for thickening with use of less metal) strips of metal.
- a new plug provides for not only easy and inexpensive automated manufacture, but good insulative qualities as well.
- the new plug features an insulative bridge with a power blade bridge portion carrying power blades, a ground bridge portion carrying a ground pin, and with internal means for cooperatively with ends of said power blades anchoring them, the blades being further held in the bridge by a cap closing blade-accepting slots in the bridge.
- FIG. 1 is an isometric view of a subcombination of that embodiment.
- FIG. 2 is a plan view thereof.
- FIG. 3 is a sectional view taken at 3--3 of FIG. 1.
- FIG. 4 is a side elevational view thereof.
- FIG. 5 is a bottom view of said embodiment.
- FIG. 1 a pair of folded conductive metal sheet strip blades indicated generally at 10.
- Each blade 10 has an outer layer 12 and an inner layer 14, each pair joined respectively by a fold 16.
- Each outer layer 12 includes an outwardly facing embossment 18 made by offsetting the corresponding area of the opposing surface of that layer.
- Each inner layer 14 includes an inwardly facing embossment 20 made by offsetting the corresponding area of the opposing surface of that layer.
- the effective thickness of each blade 10 (as measurable with, for example, a micrometer caliper) measured through portions 18, 20 is thus more than twice the thickness of the sheet metal of which blades 10 are formed.
- Element 30 includes a pair of slots 32 extending in an element thickness direction and of a slot size for accepting the double thickness of unembossed layers 12, 14, these slots being open at ends 34. Slots 32 meet within element 30 transversely and longitudinally extending blind slots 36, in which are accepted the bent 90 degree ends of layers 14. Promontories 38 of element 30 define upper surfaces of slots 36, while base 40 defines lower surfaces. Base 40 includes on its outer surface farther away from blade folds 16 a transverse notch 42.
- Lower slots 60 extend transversely and are blind from an open end on the same side of element 30 as slot 32's transversely open end. Slots 60 open into slots 32 and 36.
- polypropylene cap 70 Secured to bridge element 30 is polypropylene cap 70, which includes orienting projections 72 seated in blind holes 50, and an inner surface 74 which closes off slots 32, 36, and 60.
- Outer layers 12 after extending through slots 60 of element 30 terminate in contact paddles 80, each of which is formed from the same metal strip as its respective portion 12 and is continuous therewith, and each of which is rotated 90 degrees about an axis lying approximately along the inner surface of its layer 12 and parallel with the axis of symmetry of power bridge element 30.
- Paddles 80 are bent inwardly of bridge element 30 toward each other, from layers 12, as best shown in FIG. 5.
- Blind hole 90 in element 30 has seated therein mating projection 92 integral with the ground bridge, indicated generally at 94.
- Ground bridge 94 includes polypropylene support 96 carrying integral projection 92 and ground pin 98 formed of a single sheet of conductive metal, leaving opening 100 between adjoining sheet edges and slots 102 in the upper hemispherical portion 104 of the formed pin 98. At its lower location 106 the there cylindrical pin 98 is cut along the line 106, and (in FIG. 4) the left half-cylinder below line 106 removed, what remains being flattened parallel to the plane going perpendicularly into the paper to provide paddle 108, narrowed from 110 to its extremity.
- the elements 70, 30, and 94 are fitted together and thermowelded into a unitary overall bridge assembly.
- the grooves 42 and 120 (the latter corresponding in depth to the former, and in essence continuing it) provide for vibratory feeding in manufacture.
- the paddles 80 and 108 may be crimped or welded for electrical connection.
- Integral pins 72 cooperate with blind holes 50 to provide excellent orientations, as do projection 92 and blind slot 90.
- the polypropylene of elements 30, 94, 70 provide good insulative qualities.
- the new plug also facilitates assembly of wires to the paddles.
- Thermowelding of the ground bridge portion to the power bridge portion is preferably done after wires are attached to the appropriate paddles.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
An electrical plug with power blades in a power bridge portion and a ground pin in a ground bridge portion, the portions being non-integrally joined.
Description
This invention relates to electrical plugs, and more particularly to such plugs with a novel bride supporting and separating the power blades from each other, and the ground prong from both.
Plugs with two power blades and a ground prong are known in the prior art, as are use in the blades of folded and embossed (for thickening with use of less metal) strips of metal.
A new plug provides for not only easy and inexpensive automated manufacture, but good insulative qualities as well.
The new plug features an insulative bridge with a power blade bridge portion carrying power blades, a ground bridge portion carrying a ground pin, and with internal means for cooperatively with ends of said power blades anchoring them, the blades being further held in the bridge by a cap closing blade-accepting slots in the bridge. Other features of preferred embodiments will be set forth in the following description and claims.
Following are drawings of a preferred embodiment, with description thereof.
FIG. 1 is an isometric view of a subcombination of that embodiment.
FIG. 2 is a plan view thereof.
FIG. 3 is a sectional view taken at 3--3 of FIG. 1.
FIG. 4 is a side elevational view thereof.
FIG. 5 is a bottom view of said embodiment.
In FIG. 1 are shown a pair of folded conductive metal sheet strip blades indicated generally at 10.
Each blade 10 has an outer layer 12 and an inner layer 14, each pair joined respectively by a fold 16. Each outer layer 12 includes an outwardly facing embossment 18 made by offsetting the corresponding area of the opposing surface of that layer. Each inner layer 14 includes an inwardly facing embossment 20 made by offsetting the corresponding area of the opposing surface of that layer. The effective thickness of each blade 10 (as measurable with, for example, a micrometer caliper) measured through portions 18, 20 is thus more than twice the thickness of the sheet metal of which blades 10 are formed.
All the layers 12, 14 extend into polypropylene power bridge element indicated generally at 30. Element 30 includes a pair of slots 32 extending in an element thickness direction and of a slot size for accepting the double thickness of unembossed layers 12, 14, these slots being open at ends 34. Slots 32 meet within element 30 transversely and longitudinally extending blind slots 36, in which are accepted the bent 90 degree ends of layers 14. Promontories 38 of element 30 define upper surfaces of slots 36, while base 40 defines lower surfaces. Base 40 includes on its outer surface farther away from blade folds 16 a transverse notch 42.
Open from the same transverse side of element 30 as slots 32 and 36 are three blind orienting holes 50.
Secured to bridge element 30 is polypropylene cap 70, which includes orienting projections 72 seated in blind holes 50, and an inner surface 74 which closes off slots 32, 36, and 60.
The elements 70, 30, and 94 are fitted together and thermowelded into a unitary overall bridge assembly. The grooves 42 and 120 (the latter corresponding in depth to the former, and in essence continuing it) provide for vibratory feeding in manufacture. The paddles 80 and 108 may be crimped or welded for electrical connection.
The bent ends of layers 14 cooperate with slots 36 to provide excellent blade anchorage. Integral pins 72 cooperate with blind holes 50 to provide excellent orientations, as do projection 92 and blind slot 90.
The polypropylene of elements 30, 94, 70 provide good insulative qualities.
The new plug also facilitates assembly of wires to the paddles.
Thermowelding of the ground bridge portion to the power bridge portion is preferably done after wires are attached to the appropriate paddles.
Claims (13)
1. An electrical plug comprising a plastic insulative bridge,
said bridge including a ground bridge portion and a power bridge portion,
said ground bridge portion being secured to said power bridge portion non-integrally, and
in which a single ground pin is held on all sides thereof in said ground bridge portion, and a single pair of power blades are each held on all sides thereof, respectively, in said power bridge portion.
2. The plug of claim 1 in which said power blades each consists of a formed and folded-on-itself strip of conductive sheet metal.
3. An electrical plug comprising a plastic insulative bridge,
said bridge including a ground bridge portion and a power bridge portion,
said ground bridge portion being non-integrally secured to said power bridge portion,
said ground bridge portion holding therein a single ground pin,
said power bridge portion holding therein a single pair of power blades
in which said power blades each consists of a formed and folded-on-itself strip of conductive sheet metal, and
in which a first layer of each said blade extends completely through first slots in said power bridge portion and a second layer of each said blade extends angularly away from said first layer inwardly of said power blade, and is held in second slots of said power bridge portion so angularly related to said first slots.
4. The plug of claim 3 in which said first slots and said second slots are closed by an insulative cap secured to said power bridge portion.
5. The plug of claim 4 in which said ground bridge portion includes an integral elongated projection and said power bridge portion includes a mating blind hole.
6. The plug of claim 4 in which one of said power bridge portion and said cap includes projections and the other includes mating blind holes.
7. The plug of claim 4 in which said power bridge portion includes a vibratory feeder orientation groove.
8. The plug of claim 4 in which each of said power bridge portion and said cap are formed of plastic and secured together.
9. The plug of claim 8 in which said plastic is polypropylene.
10. The plug of claim 8 in which said power bridge portion and said cap are thermoweldedly joined.
11. The plug of claim 10 in which said power bridge portion and said ground bridge portion are thermoweldedly joined. .Iadd.
12. An electrical plug comprising a plastic insulative power bridge portion and a pair of power blades held therein,
each of said power blades consisting of a formed and folded-on-itself strip of conductive sheet metal, and
in which a first layer of each said blade extends completely through first slots in said power bridge portion and a second layer of each said blade extends angularly away from said first layer inwardly of said power blade, and is held in second slots of said power bridge portion so angularly related to said first slots, and in which each said first layer extends also completely through a third slot in said power bridge portion, said third slot being thinner than said first slot, each said second slot communicating with each said first slot inwardly of each said third slot. .Iaddend..Iadd.
13. The plug of claim 12 in which said first slots and said second slots are closed by an insulative cap secured to said power bridge portion. .Iaddend..Iadd.14. The plug of claim 13 in which one of said power bridge portion and said cap includes projections and the other includes mating blind holes. .Iaddend..Iadd.15. The plug of claim 13 in which said power bridge portion includes a vibratory feeder orientation groove. .Iaddend..Iadd.16. The plug of claim 13 in which each of said power bridge portion and said cap are formed of plastic and secured together. .Iaddend..Iadd.17. The plug of claim 16 in which said plastic is polypropylene. .Iaddend..Iadd.18. The plug of claim 16 in which said power bridge portion and said cap are thermoweldedly joined. .Iaddend.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/703,971 USRE36829E (en) | 1994-06-02 | 1996-08-28 | Bridged electrical plug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/252,679 US5411403A (en) | 1994-06-02 | 1994-06-02 | Bridged electrical plug |
US08/703,971 USRE36829E (en) | 1994-06-02 | 1996-08-28 | Bridged electrical plug |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/252,679 Reissue US5411403A (en) | 1994-06-02 | 1994-06-02 | Bridged electrical plug |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE36829E true USRE36829E (en) | 2000-08-22 |
Family
ID=22957047
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/252,679 Ceased US5411403A (en) | 1994-06-02 | 1994-06-02 | Bridged electrical plug |
US08/703,971 Expired - Lifetime USRE36829E (en) | 1994-06-02 | 1996-08-28 | Bridged electrical plug |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/252,679 Ceased US5411403A (en) | 1994-06-02 | 1994-06-02 | Bridged electrical plug |
Country Status (1)
Country | Link |
---|---|
US (2) | US5411403A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5647751A (en) * | 1995-06-30 | 1997-07-15 | Shulman; Michael Y. | Female receptacle and premold therefor |
US6190212B1 (en) * | 1995-08-24 | 2001-02-20 | Heyco, Inc. | Plastic support structure and assembly for electrical contacts for a molded plug |
US5662484A (en) * | 1995-08-31 | 1997-09-02 | Etco Incorporated | Bridged electrical plug |
DE19638510C1 (en) * | 1996-09-20 | 1997-11-20 | Taller Gmbh | Plug bridge for electrical equipment plug for connecting equipment to mains |
US6168443B1 (en) * | 1998-06-12 | 2001-01-02 | Heyco Products, Inc. | Two conductor bridge |
US6099338A (en) * | 1998-11-09 | 2000-08-08 | Huang; Chyong-Yen | Securing means for blades of electrical plug |
US6767226B2 (en) * | 2002-02-28 | 2004-07-27 | Etco Incorporated | Premolding electrical receptacles |
DE102007009422A1 (en) | 2007-02-23 | 2008-09-25 | Taller Gmbh | pin |
JP2011090786A (en) * | 2009-10-20 | 2011-05-06 | Kawasaki Densen Kk | Power plug and method of manufacturing the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1872678A (en) * | 1929-08-14 | 1932-08-23 | George L Chamberlain | Sectional plug structure |
US3668779A (en) * | 1969-04-02 | 1972-06-13 | Gen Electric | Method of manufacturing double insulated plugs |
US4854894A (en) * | 1988-08-23 | 1989-08-08 | Cooper Industries, Inc. | Intermediate component for an electrical connector and method of manufacture |
-
1994
- 1994-06-02 US US08/252,679 patent/US5411403A/en not_active Ceased
-
1996
- 1996-08-28 US US08/703,971 patent/USRE36829E/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1872678A (en) * | 1929-08-14 | 1932-08-23 | George L Chamberlain | Sectional plug structure |
US3668779A (en) * | 1969-04-02 | 1972-06-13 | Gen Electric | Method of manufacturing double insulated plugs |
US4854894A (en) * | 1988-08-23 | 1989-08-08 | Cooper Industries, Inc. | Intermediate component for an electrical connector and method of manufacture |
Also Published As
Publication number | Publication date |
---|---|
US5411403A (en) | 1995-05-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
USRE36829E (en) | Bridged electrical plug | |
CA2184565C (en) | Bridged electrical plug | |
US3138658A (en) | Electrical connector for very thin sheet metal member | |
EP0347100B1 (en) | Solderless electrical connector | |
TR199901764A2 (en) | Electrical connector. | |
US4836803A (en) | Wire holding device in an electrical connector | |
JPS5833671B2 (en) | handana sidensen connector | |
US4210378A (en) | Electrical wire connection | |
FR2566969A1 (en) | ELECTRIC CONTACT ELEMENT OF A CONNECTOR AND METHOD FOR MANUFACTURING THE SAME | |
CN100541924C (en) | The male terminal joint, the method that is used for the sheet material of this joint and forms this joint | |
ITTO980144U1 (en) | ELECTRONIC DEVICE ON PLATE, IN PARTICULAR ELECTRONIC GAS LIGHTER, INCLUDING MEANS OF RAPID CONNECTION BETWEEN ISLAND ELECTRIC WIRES | |
JPS6134232B2 (en) | ||
US4075417A (en) | Crimped, insulation piercing electrical connection | |
US4894021A (en) | Vacuum cleaner hose construction, insert therefor and methods of making the same | |
US6074252A (en) | Electrical plug | |
US4530562A (en) | Connector | |
JP2019153599A (en) | Terminal fitting | |
BE1001276A3 (en) | Rail contact for electric wire puzzle. | |
US20010027050A1 (en) | Insulation-displacement connecting piece able to be connected to an adjacent connecting piece | |
JPH04229963A (en) | Compliant terminal pin | |
AU713232B3 (en) | Improved electrical connector | |
CN2391345Y (en) | Improved halogen lamp socket | |
FR2806541A1 (en) | CONNECTOR WITH CONFIGURABLE CONTACTS | |
AU741360B2 (en) | Improved electrical connector | |
JPS5840507Y2 (en) | Lead wire insulation spacer for temperature fuses, etc. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ETCO INCORPORATED, RHODE ISLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BLANCHE, STEPHEN A.;REEL/FRAME:008277/0828 Effective date: 19960823 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |