US20030103342A1 - Portable relay base - Google Patents
Portable relay base Download PDFInfo
- Publication number
- US20030103342A1 US20030103342A1 US10/058,502 US5850202A US2003103342A1 US 20030103342 A1 US20030103342 A1 US 20030103342A1 US 5850202 A US5850202 A US 5850202A US 2003103342 A1 US2003103342 A1 US 2003103342A1
- Authority
- US
- United States
- Prior art keywords
- power line
- line carrier
- relay base
- portable relay
- base according
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/15—Protecting or guiding telephone cords
Definitions
- the present invention relates to a portable relay base, and particularly to a portable relay base, which offers a function of automatic positioning/wire collecting. Furthermore, a communication line with a function of automatic positioning/wire collecting is added so that the present invention is a portable relay base performing not only power supply but also signal extension.
- the extension available in the market does not offer a function of rewinding the lead wire thereof so that it is very possible for the lead wire thereof becomes tangled not only to occupy a considerable space but also to result in being taken in inconveniently. Thus, it is hard for the extension receptacle being carried about with the user.
- the so called communication apparatus typically refers to the telephone and the facsimile, wherein, the telephone usually is utilized to discuss business matter for businessmen or to extend one's greetings to others without face to face, and the facsimile can be used for sending or receiving letters or pictures.
- a rapid development of INTERNET makes a personal computer with a modem and a portable computer with related software can send and receive letters or pictures via e-mail. Meanwhile, as soon as the computer is logged on the INTERNET, it is possible to browse and download the data needed. Hence, the computer is belonged to one of communication device from a broad sense.
- a portable relay base is composed of an upper cover and a lower cover being oppositely joined to each other.
- the portable relay base at a lateral side thereof at least provides an outlet unit composed of two contact poles and/or one ground pole and at a proper position thereof provides an opening.
- the portable relay further comprises a power line carrier, a power line, and a circuit board.
- the power line carrier has a shape of disk and fits with the lower cover axially.
- An automatic positioning/wire collecting apparatus is provided in the power line carrier and a central hollow reel is provided at a top thereof with at least two concentric spacing rings in accordance with the number of poles of the power.
- the power line is a lead wire, which is coiled up around the reel as a bundle with an electricity taking plug at an end thereof being disposed outside the opening and another end thereof having at least two conductive pieces. Both of the ends are fixedly attached to the spacing rings.
- the circuit board is fixed to the inner part of the upper cover with a resilient contact piece corresponding to and touching each of the conductive pieces.
- FIG. 1 is an exploded perspective view of a portable relay base according to the present invention
- FIG. 2 is an inversed exploded perspective view illustrating a circuit board, a signal line and automatic positioning/wire collecting apparatus shown in FIG. 1;
- FIG. 3 is a sectional view illustrating the circuit board with a power line and a communication line.
- FIG. 4 is a perspective view of the portable relay base of the present invention after assembling.
- a portable relay base according to the present invention comprises an upper cover 1 , a lower cover 2 , a power line carrier 3 , a power line 4 and a circuit board 5 .
- the upper cover 1 is a casing with an hollow bottom and provided with at least an outlet unit 11 composed of two connect poles and/or a ground pole at a lateral side thereof.
- the upper cover 1 at the inner side thereof is fixedly attached with the circuit board 5 by way of conventional fasteners such as screws.
- the lower cover 2 is a casing provided with a configuration and a size corresponding to the upper cover so as to be joined to the upper cover 1 .
- the lower cover at a lateral side thereof is provided with a locating part 21 , which is composed of a casing ring 22 and a spring ring 23 disposed concentrically, receives a power line carrier 3 and a coil spring 331 respectively.
- the casing ring 22 has a circumferential opening part 24 extending tangentially such that a lead wire 42 of the power line 4 can be movably contained in the opening part 24 .
- the spring ring 23 at the center thereof has an axial hole 231 for fitting with an axle of the power line carrier 3 and at the circumferential side thereof has a catch groove 232 for locating the outer end of the coil spring 331 .
- at least two opposite arched guide rails 25 and at least two Y-shaped locating recesses 251 are provided between the casing ring 25 and the spring ring 23 such that an outer track 252 and an inner track 253 can be spaced apart by the guide rails 25 .
- the locating part 21 and an extensible guide part 33 at the bottom of the power line carrier 3 can form an automatic positioning/wire colleting apparatus. The actuation of the automatic positioning/wire collecting apparatus is described hereinafter.
- the power line carrier 3 is a disk shaped frame and provides a carrier face 31 for the power line 4 being coiled up thereon.
- the power line carrier 3 at the lower center thereof extends downward a carrier shaft 32 for fitting with the axial hole 231 and connecting with the coil spring 331 , which is attached to an extensible guide part 33 , such that both ends of the coil spring 331 is joined to the power line carrier 3 and the lower cover 2 respectively.
- the carrier face 31 at the bottom thereof has a downward carrier post 34 disposed near the rim thereof to rotationally fit with an arm hole 333 at an end of an arched sway arm 332 and the arched sway arm 332 at another end thereof has a guide post 334 extending downward to be inserted into one of the locating recesses 251 .
- the distinguishing feature of the present invention is in that the carrier face 31 at the center area thereof projects a hollow reel 35 with at least two inner spacing rings 351 based on the number of poles of the power line 4 . Each of the spacing rings 351 has a notch for being passed through by the lead wire 42 and provides a plurality of holding pieces 352 .
- Each conductive piece 43 connects with a neutral line, a fire line and/or a ground line of the lead wire to form a close circuit.
- the reel 35 at the top edge thereof at least extends three wing plates 353 horizontally so as to keep the wire in a state of being in order.
- the power line carrier 3 can turn about the axial hole 231 synchronously with the coil spring 331 in the spring ring 23 gradually so as to tight up the coil spring 331 and the rotational sway arm 332 may swing about the carrier post 34 to urge the guide post 334 detaching one of the locating recesses 251 and turning along the outer track 252 .
- the guide post 334 may enter the inner track 253 and remain in a state of rotating.
- the coil spring 331 may expand due to the resilience itself and the guide post may displace along the guide rails 25 from the inner track 253 due to the action of centrifugal force to enter one of the locating recesses 251 such that it constitutes an effect of positioning and the plug 41 can be inserted into an outlet to allow the conductive pieces 43 in a state of being electrified.
- the lead wire 42 is pulled out a small segment first to separate the guide post 334 from one of the locating recesses 251 and enters the inner track 253 from the outer track 252 again. Then, the user loosens his grip and the coil spring 331 can urge the power line carrier 3 to turn inversely by way of the expansion resilience thereof to result in the guide post 334 turning inversely in the inner track 253 till the plug 41 touching the opening part 24 such that the guide post 334 can move along the guide rails 25 to engage with one of the locating recesses 251 for completing the automatic taking in operation.
- the lead wire 42 of the power line 4 at an end thereof provides the plug 41 and at another end thereof connects with at least two conductive pieces 43 concentrically and both ends of the lead wire 42 rest and fixed in a respective corresponding spacing ring 351 . Further, the lead wire 42 is coiled up around the reel 35 to form a coil bundle.
- the circuit board 5 is fixedly attached to and disposed in the upper cover 1 and a plurality of metal contacts 51 extend from the circuit board 5 corresponding to the conductive pieces 43 respectively so as to contact with the conductive pieces 43 individually such that connective lines 52 can connect with each outlet unit 11 respectively to form a close circuit for offering a function of power supply.
- the contacts 51 preferably has a shape of Y to assure the stability of contact while in use.
- a surge absorber 12 (conventional and not shown in detail) is fixed in the upper cover 1 between the outlet units 11 and at least two connective lines 52 to control on/off of the power via a control switch 121 on the upper cover 1 and to perform a reset in case of overload.
- two indicator lights 122 are arranged on the upper cover 1 to show the surge protection and ground indication.
- a signal line carrier 6 and a communication line 7 are provided therein.
- the circuit board 5 provides a plurality of concentric guide rings 53 according to the number of pins on the communication line 7 so as to send the signal to at least an exposed signal output outlet 54 on the upper cover 1 .
- another surge absorber 55 may be mounted between the guide rings 53 and the signal output outlet 53 to prevent the electric appliance from damage resulting from an excess instantaneous current.
- the signal line carrier 6 is disposed in a locating device 13 at the inner top wall of the upper cover 1 and can project from the inner top wall directly or is made as a unit cell.
- the signal line carrier 6 is identical with the preceding locating device 21 , that is, the signal line carrier 6 comprises a casing ring 14 and a spring ring 15 and at least two opposite arched guide rails 16 with two Y shaped locating recesses 161 .
- the guide rails 16 is formed an inner track 163 and an outer track 162 .
- the casing ring 14 at the inner top thereof juts out a plurality of engaging projections 141 so as to join engaging holes preset at the inner top wall.
- the signal line carrier 6 is about the same as the power line carrier 3 , that is, a frame face 61 at the bottom thereof has an axial shaft 62 for fitting with an axial hole 151 and a projection 64 is provided next to the rim thereof for being joined to an extensible guide part 63 .
- a coil spring at an end thereof fixed to the axial shaft 62 and at another end thereof is inserted into an engaging recess 152 of the spring ring 15 so that the coil spring 631 can be received between the frame face 61 and the spring ring 15 .
- a sway arm 632 at an end thereof has an arm hole 633 fitting with frame projection 64 and at another end thereof has a guide post 634 engages with one of locating recesses 161 .
- the frame face 61 at the center thereof has a hollow reel 65 for the communication line 7 being coiled up around as a bundle and at the upper rim thereof is surrounded by a plurality of wing plates 653 to form an annular part.
- the reel 65 at the inner side thereof connects with a plurality of elastic terminals 73 and this arrangement is different from the preceding one and the signal wire 72 passes through a plurality of spacing projections in a surrounding way for preventing the signal wire 72 from rupture due to an over haul.
- the signal wire 72 of the signal line 7 is coiled up around the reel 65 so as to form a bundle such that an end thereof is received in the opening part 17 of a signal plug 71 and another end thereof has a plurality of pin signal to connect with the resilient terminals 73 fixed to the hollow reel 65 for touching each guide ring 53 .
- the signal can pass through the surge absorber 55 to be sent to at least a signal output outlet 54 for being inserted with a communication device.
- the power line of the relay base provides a function of automatic positioning/wire collecting and makes the portability being realized effectively.
- a communication line has been added to the present invention with a function of automatic positioning/wire collecting as well.
- the electricity taking plug and the signal plug can be pulled out separately and inserted into a stationary power receptacle and a signal outlet to integrate the power supply and the communication signal in the relay base such that a user can use an electric appliance such as a portable computer to login on the INTERNET or send or receive e-mails with extreme facility.
- a surge absorber is provided on the power line and the signal line respectively to assure the safety of the electric while in use.
- the circuit board of the present invention offers a function of transfer between the power and the signal so that it is not possible for the power line carrier and the signal line carrier to occur an imperfect contact during rotation.
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
- 1. Field of the Invention
- The present invention relates to a portable relay base, and particularly to a portable relay base, which offers a function of automatic positioning/wire collecting. Furthermore, a communication line with a function of automatic positioning/wire collecting is added so that the present invention is a portable relay base performing not only power supply but also signal extension.
- 2. Description of Related Art
- Generally, a common puzzle for tourists and business persons who need to be out of town often is each receptacle in a temporary staying hotel room or resident house is stationary at an unexpected location such that the electric appliances such as a portable computer, a mobile phone, a personal digital assistant (PDA) and an electric razor carried about with them can only be operated uncomfortably under a circumstance of complying to the preset receptacle. Some persons have prepared an extension receptacle while using their electric appliances to overcome the deficiency of the fixed located receptacle. However, the extension available in the market does not offer a function of rewinding the lead wire thereof so that it is very possible for the lead wire thereof becomes tangled not only to occupy a considerable space but also to result in being taken in inconveniently. Thus, it is hard for the extension receptacle being carried about with the user.
- Besides, due to the vigorous development of information industry, links between people are getting closer and the communication apparatus plays a very important role. The so called communication apparatus typically refers to the telephone and the facsimile, wherein, the telephone usually is utilized to discuss business matter for businessmen or to extend one's greetings to others without face to face, and the facsimile can be used for sending or receiving letters or pictures. A rapid development of INTERNET makes a personal computer with a modem and a portable computer with related software can send and receive letters or pictures via e-mail. Meanwhile, as soon as the computer is logged on the INTERNET, it is possible to browse and download the data needed. Hence, the computer is belonged to one of communication device from a broad sense.
- However, it is very inconvenient for the businesspersons who are frequently out of town for business or tourists while the communication apparatus such as the portable computer or the facsimile machine is used and it is necessary to comply with the fixed located receptacles or to prepare signal extension line.
- A portable relay base according to the present invention is composed of an upper cover and a lower cover being oppositely joined to each other. The portable relay base at a lateral side thereof at least provides an outlet unit composed of two contact poles and/or one ground pole and at a proper position thereof provides an opening. The portable relay further comprises a power line carrier, a power line, and a circuit board. The power line carrier has a shape of disk and fits with the lower cover axially. An automatic positioning/wire collecting apparatus is provided in the power line carrier and a central hollow reel is provided at a top thereof with at least two concentric spacing rings in accordance with the number of poles of the power. The power line is a lead wire, which is coiled up around the reel as a bundle with an electricity taking plug at an end thereof being disposed outside the opening and another end thereof having at least two conductive pieces. Both of the ends are fixedly attached to the spacing rings. The circuit board is fixed to the inner part of the upper cover with a resilient contact piece corresponding to and touching each of the conductive pieces. Once the power line carrier rotates, the power through the electricity taking plug can be delivered to each of the outlet units via at least two connecting wires.
- The present invention can be more fully understood by referencing to the following detailed description and accompanying drawings, in which:
- FIG. 1 is an exploded perspective view of a portable relay base according to the present invention;
- FIG. 2 is an inversed exploded perspective view illustrating a circuit board, a signal line and automatic positioning/wire collecting apparatus shown in FIG. 1;
- FIG. 3 is a sectional view illustrating the circuit board with a power line and a communication line; and
- FIG. 4 is a perspective view of the portable relay base of the present invention after assembling.
- Referring to FIGS.1 to 4, a portable relay base according to the present invention comprises an
upper cover 1, alower cover 2, apower line carrier 3, apower line 4 and acircuit board 5. - Wherein, the
upper cover 1 is a casing with an hollow bottom and provided with at least anoutlet unit 11 composed of two connect poles and/or a ground pole at a lateral side thereof. Theupper cover 1 at the inner side thereof is fixedly attached with thecircuit board 5 by way of conventional fasteners such as screws. - The
lower cover 2 is a casing provided with a configuration and a size corresponding to the upper cover so as to be joined to theupper cover 1. The lower cover at a lateral side thereof is provided with a locatingpart 21, which is composed of acasing ring 22 and aspring ring 23 disposed concentrically, receives apower line carrier 3 and acoil spring 331 respectively. Thecasing ring 22 has acircumferential opening part 24 extending tangentially such that alead wire 42 of thepower line 4 can be movably contained in theopening part 24. Thespring ring 23 at the center thereof has anaxial hole 231 for fitting with an axle of thepower line carrier 3 and at the circumferential side thereof has acatch groove 232 for locating the outer end of thecoil spring 331. Besides, at least two oppositearched guide rails 25 and at least two Y-shaped locatingrecesses 251 are provided between thecasing ring 25 and thespring ring 23 such that anouter track 252 and aninner track 253 can be spaced apart by theguide rails 25. The locatingpart 21 and anextensible guide part 33 at the bottom of thepower line carrier 3 can form an automatic positioning/wire colleting apparatus. The actuation of the automatic positioning/wire collecting apparatus is described hereinafter. - The
power line carrier 3 is a disk shaped frame and provides acarrier face 31 for thepower line 4 being coiled up thereon. Thepower line carrier 3 at the lower center thereof extends downward acarrier shaft 32 for fitting with theaxial hole 231 and connecting with thecoil spring 331, which is attached to anextensible guide part 33, such that both ends of thecoil spring 331 is joined to thepower line carrier 3 and thelower cover 2 respectively. Besides, thecarrier face 31 at the bottom thereof has adownward carrier post 34 disposed near the rim thereof to rotationally fit with anarm hole 333 at an end of anarched sway arm 332 and thearched sway arm 332 at another end thereof has aguide post 334 extending downward to be inserted into one of the locatingrecesses 251. The distinguishing feature of the present invention is in that the carrier face 31 at the center area thereof projects ahollow reel 35 with at least twoinner spacing rings 351 based on the number of poles of thepower line 4. Each of thespacing rings 351 has a notch for being passed through by thelead wire 42 and provides a plurality ofholding pieces 352. Eachconductive piece 43 connects with a neutral line, a fire line and/or a ground line of the lead wire to form a close circuit. Besides, in order to ensure the neatness during pulling thepower line 4 out or taking thepower line 4 in, thereel 35 at the top edge thereof at least extends threewing plates 353 horizontally so as to keep the wire in a state of being in order. - Next, the principle of operation with regard to the automatic positioning/wire collecting apparatus will be explained in detail. When a
plug 41 of thepower line 4 is held and pulled outward by the user to stretch thelead wire 42 outward, thepower line carrier 3 can turn about theaxial hole 231 synchronously with thecoil spring 331 in thespring ring 23 gradually so as to tight up thecoil spring 331 and therotational sway arm 332 may swing about thecarrier post 34 to urge theguide post 334 detaching one of the locatingrecesses 251 and turning along theouter track 252. In case of theguide post 334 reaches to an elevation difference from one of the locatingrecesses 251, theguide post 334 may enter theinner track 253 and remain in a state of rotating. When the user stops pulling thepower line 4 and loosens his grip, thecoil spring 331 may expand due to the resilience itself and the guide post may displace along theguide rails 25 from theinner track 253 due to the action of centrifugal force to enter one of the locatingrecesses 251 such that it constitutes an effect of positioning and theplug 41 can be inserted into an outlet to allow theconductive pieces 43 in a state of being electrified. - In case of performing the operation of taking in the power line, the
lead wire 42 is pulled out a small segment first to separate theguide post 334 from one of the locatingrecesses 251 and enters theinner track 253 from theouter track 252 again. Then, the user loosens his grip and thecoil spring 331 can urge thepower line carrier 3 to turn inversely by way of the expansion resilience thereof to result in theguide post 334 turning inversely in theinner track 253 till theplug 41 touching theopening part 24 such that theguide post 334 can move along theguide rails 25 to engage with one of the locatingrecesses 251 for completing the automatic taking in operation. - The
lead wire 42 of thepower line 4 at an end thereof provides theplug 41 and at another end thereof connects with at least two conductive pieces43 concentrically and both ends of thelead wire 42 rest and fixed in a respectivecorresponding spacing ring 351. Further, thelead wire 42 is coiled up around thereel 35 to form a coil bundle. - The
circuit board 5 is fixedly attached to and disposed in theupper cover 1 and a plurality ofmetal contacts 51 extend from thecircuit board 5 corresponding to the conductive pieces43 respectively so as to contact with the conductive pieces43 individually such thatconnective lines 52 can connect with eachoutlet unit 11 respectively to form a close circuit for offering a function of power supply. It is noted that thecontacts 51 preferably has a shape of Y to assure the stability of contact while in use. - In order to offer a protection function for the relay base of the present invention, a surge absorber12 (conventional and not shown in detail) is fixed in the
upper cover 1 between theoutlet units 11 and at least twoconnective lines 52 to control on/off of the power via acontrol switch 121 on theupper cover 1 and to perform a reset in case of overload. Besides, in order to be aware of the status of the present invention definitely, twoindicator lights 122 are arranged on theupper cover 1 to show the surge protection and ground indication. - Furthermore, in order to offer a function of communication for the relay base of the present invention, a
signal line carrier 6 and acommunication line 7 are provided therein. Hence, thecircuit board 5 provides a plurality ofconcentric guide rings 53 according to the number of pins on thecommunication line 7 so as to send the signal to at least an exposedsignal output outlet 54 on theupper cover 1. In addition, in order to secure the communication device such as a portable computer, anothersurge absorber 55 may be mounted between the guide rings 53 and thesignal output outlet 53 to prevent the electric appliance from damage resulting from an excess instantaneous current. - The
signal line carrier 6 is disposed in a locatingdevice 13 at the inner top wall of theupper cover 1 and can project from the inner top wall directly or is made as a unit cell. Thesignal line carrier 6 is identical with the preceding locatingdevice 21, that is, thesignal line carrier 6 comprises acasing ring 14 and aspring ring 15 and at least two oppositearched guide rails 16 with two Y shaped locating recesses 161. In addition, the guide rails 16 is formed aninner track 163 and anouter track 162. In case of thesignal line carrier 6 being made as a unit cell, thecasing ring 14 at the inner top thereof juts out a plurality of engagingprojections 141 so as to join engaging holes preset at the inner top wall. - The
signal line carrier 6 is about the same as thepower line carrier 3, that is, aframe face 61 at the bottom thereof has anaxial shaft 62 for fitting with anaxial hole 151 and aprojection 64 is provided next to the rim thereof for being joined to anextensible guide part 63. Hence, a coil spring at an end thereof fixed to theaxial shaft 62 and at another end thereof is inserted into anengaging recess 152 of thespring ring 15 so that thecoil spring 631 can be received between theframe face 61 and thespring ring 15. Asway arm 632 at an end thereof has anarm hole 633 fitting withframe projection 64 and at another end thereof has aguide post 634 engages with one of locating recesses 161. The frame face 61 at the center thereof has ahollow reel 65 for thecommunication line 7 being coiled up around as a bundle and at the upper rim thereof is surrounded by a plurality ofwing plates 653 to form an annular part. Thereel 65 at the inner side thereof connects with a plurality ofelastic terminals 73 and this arrangement is different from the preceding one and thesignal wire 72 passes through a plurality of spacing projections in a surrounding way for preventing thesignal wire 72 from rupture due to an over haul. - The
signal wire 72 of thesignal line 7 is coiled up around thereel 65 so as to form a bundle such that an end thereof is received in theopening part 17 of asignal plug 71 and another end thereof has a plurality of pin signal to connect with theresilient terminals 73 fixed to thehollow reel 65 for touching eachguide ring 53. In this way, the signal can pass through thesurge absorber 55 to be sent to at least asignal output outlet 54 for being inserted with a communication device. - It is appreciated from the preceding embodiment description of the present invention that the power line of the relay base provides a function of automatic positioning/wire collecting and makes the portability being realized effectively. Besides, a communication line has been added to the present invention with a function of automatic positioning/wire collecting as well. The electricity taking plug and the signal plug can be pulled out separately and inserted into a stationary power receptacle and a signal outlet to integrate the power supply and the communication signal in the relay base such that a user can use an electric appliance such as a portable computer to login on the INTERNET or send or receive e-mails with extreme facility. A surge absorber is provided on the power line and the signal line respectively to assure the safety of the electric while in use. Furthermore, the circuit board of the present invention offers a function of transfer between the power and the signal so that it is not possible for the power line carrier and the signal line carrier to occur an imperfect contact during rotation.
- While the invention has been described with reference to a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.
Claims (13)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW90221068U | 2001-12-04 | ||
TW090221068U TW503929U (en) | 2001-12-04 | 2001-12-04 | Portable power distributor |
TW090221068 | 2001-12-04 | ||
CA002370249A CA2370249C (en) | 2001-12-04 | 2002-01-31 | Portable relay base |
Publications (2)
Publication Number | Publication Date |
---|---|
US6574120B1 US6574120B1 (en) | 2003-06-03 |
US20030103342A1 true US20030103342A1 (en) | 2003-06-05 |
Family
ID=32231657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/058,502 Expired - Lifetime US6574120B1 (en) | 2001-12-04 | 2002-01-30 | Portable relay base |
Country Status (3)
Country | Link |
---|---|
US (1) | US6574120B1 (en) |
CA (1) | CA2370249C (en) |
TW (1) | TW503929U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103499046A (en) * | 2013-09-29 | 2014-01-08 | 沈杨 | Multifunctional table lamp with stretchy patch board |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6848937B1 (en) * | 2003-09-09 | 2005-02-01 | Feng-Shen Hsiao | Retractable extension cord housing having a low-profile plug holder |
US7129822B2 (en) * | 2004-03-02 | 2006-10-31 | Powerware Corporation | Devices for detecting the presence of a source of power |
ES2247937B1 (en) * | 2004-08-18 | 2007-04-01 | Jacques Giribet Guadamillas | CHARGING DEVICE OR ELECTRICAL SUPPLY. |
TWM312817U (en) * | 2006-10-12 | 2007-05-21 | Powertech Ind Ltd | Socket capable of winding wire |
US9211799B2 (en) | 2013-08-15 | 2015-12-15 | Telefonix, Inc. | Mechanism for locking and fault detection in the electrical vehicle supply equipment cord |
ES1134255Y (en) * | 2014-11-12 | 2015-02-23 | Fabricacion De Material Electrico S A | POWER SOCKET EXTENSION |
US10777948B2 (en) * | 2018-06-28 | 2020-09-15 | Nishant Thaker | Modular extendable outlet assembly |
USD938918S1 (en) | 2019-10-09 | 2021-12-21 | Orei, Llc | Electrical plug adapter |
USD939447S1 (en) | 2019-10-09 | 2021-12-28 | Paul Zeng Universal Supplies, LLC | Electrical plug adapter |
US10797425B1 (en) * | 2019-10-09 | 2020-10-06 | Paul Zeng Universal Supplies, LLC | Compact travel adapter and extension cord |
CN114050457A (en) * | 2021-12-24 | 2022-02-15 | 深圳市欧酷特电子科技有限公司 | Interface converter with high applicability |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3812307A (en) * | 1973-01-24 | 1974-05-21 | Bell & Howell Co | Retractable cord assembly with electric switch integrally associated with rotatable reel housing member |
US4232837A (en) * | 1979-05-02 | 1980-11-11 | The Vacuum Cleaner Corporation Of America | Retractable cord reel |
US4520239A (en) * | 1982-09-30 | 1985-05-28 | Cable Electric Products, Inc. | Electrical cord reel and storage system |
US5629826A (en) * | 1995-11-30 | 1997-05-13 | Curtis Computer Products, Inc. | Retractable cord surge protector |
-
2001
- 2001-12-04 TW TW090221068U patent/TW503929U/en not_active IP Right Cessation
-
2002
- 2002-01-30 US US10/058,502 patent/US6574120B1/en not_active Expired - Lifetime
- 2002-01-31 CA CA002370249A patent/CA2370249C/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103499046A (en) * | 2013-09-29 | 2014-01-08 | 沈杨 | Multifunctional table lamp with stretchy patch board |
Also Published As
Publication number | Publication date |
---|---|
TW503929U (en) | 2002-09-21 |
CA2370249C (en) | 2009-08-18 |
US6574120B1 (en) | 2003-06-03 |
CA2370249A1 (en) | 2003-07-31 |
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