IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0071342
(2002-02-08)
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발명자
/ 주소 |
- Vista, Jr., Fidel P.
- Uy, Jr., Jose A.
- Hernandez, Anthony
- Calma, Cesar Ma. C.
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출원인 / 주소 |
- Astec International Limited
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
30 인용 특허 :
8 |
초록
▼
A plug assembly having a body portion, a plug housing that provides a mounting for AC prongs that creates a cavity therewithin, and a PCB located in the cavity. A pair of contact terminals are mounted on the PCB in a predetermined position so as to create a spring-loaded electrical contact with a co
A plug assembly having a body portion, a plug housing that provides a mounting for AC prongs that creates a cavity therewithin, and a PCB located in the cavity. A pair of contact terminals are mounted on the PCB in a predetermined position so as to create a spring-loaded electrical contact with a corresponding one of the AC prongs during assembly. The present invention reduces the bulkiness, optimizes the packaging size, and reduces the profile of the plug assembly by using the cavity to house the PCB, thereby providing a reduction or elimination of the need to mount components within the body portion. The present invention eliminates the need to use flexible wires, springs, or direct soldering between the AC prongs and the circuitry on the PCB, thereby making assembly quicker and easier through use of the spring loaded contact terminal.
대표청구항
▼
A plug assembly having a body portion, a plug housing that provides a mounting for AC prongs that creates a cavity therewithin, and a PCB located in the cavity. A pair of contact terminals are mounted on the PCB in a predetermined position so as to create a spring-loaded electrical contact with a co
A plug assembly having a body portion, a plug housing that provides a mounting for AC prongs that creates a cavity therewithin, and a PCB located in the cavity. A pair of contact terminals are mounted on the PCB in a predetermined position so as to create a spring-loaded electrical contact with a corresponding one of the AC prongs during assembly. The present invention reduces the bulkiness, optimizes the packaging size, and reduces the profile of the plug assembly by using the cavity to house the PCB, thereby providing a reduction or elimination of the need to mount components within the body portion. The present invention eliminates the need to use flexible wires, springs, or direct soldering between the AC prongs and the circuitry on the PCB, thereby making assembly quicker and easier through use of the spring loaded contact terminal. 484464, 20021100, Ochoa; US-6533249, 20030300, Ochoa 15. Writing article according to claim 14 wherein the drying retardant incorporated into the writing tip accumulates mainly at the edge of the tip. 16. Process for the manufacture of a writing tip, for use in the article of claim 15, comprising the following steps: a) Impregnation of a previously machined writing tip in an impregnation bath containing a specific amount of a drying retardant, b) Drying the writing tip saturated in this way, with stirring, by heating to a temperature below or equal to 60° C. 17. Process for the manufacture of a writing tip, specially designed to be used in the writing article according to claim 1, comprising the following steps: a) Continuous impregnation of a cylindrical element with high capillarity in a bath containing a specific amount of drying retardant such that uniform distribution in the transverse section of the element of said bath is obtained, b) Drying the impregnated cylindrical element, c) Sawing and machining. 18. Process according to claim 17 wherein the impregnation bath consists of a concentrated solution of the drying retardant whereas the ink used in the writing article is an ink based on a solvent in which the drying retardant is only slightly soluble. 19. Process according to claim 18 wherein the process consists of several successive impregnation and drying steps carried out to obtain the desired amount of retardant in the cylindrical element which, before sawing and machining, is greater than the given amount. 20. Process according to claim 17 wherein the process consists of several successive impregnation and drying steps carried out to obtain the desired amount of retardant in the cylindrical element which, before sawing and machining, is greater than the given amount. 21. Writing article according to claim 1 wherein the drying retardant incorporated into the writing tip accumulates mainly at the edge of the tip. 22. Process for the manufacture of a writing tip, for use in the article of claim 21, comprising the following steps: a) Impregnation of a previously machined writing tip in an impregnation bath containing a specific amount of a drying retardant, b) Drying the writing tip saturated in this way, with stirring, by heating to a temperature below or equal to 60° C. 23. Process according to claim 22 wherein the impregnation bath contains between 0.05 and 2% by weight of drying retardant. 24. Process according to claim 23 wherein, the drying retardant is solid at room temperature, the temperature of the impregnation bath is sufficient to obtain a clear solution, without the need for filtration. 25. Process according to claim 23 wherein the impregnation bath contains from 0.1 to 0.5% of sorbitan ester. 26. Process according to claim 25 wherein, the drying retardant is solid at room temperature, the temperature of the impregnation bath is sufficient to obtain a clear solution, without the need for filtration. 27. Process according to claim 26 wherein, the drying retardant is sorbitan ester, and the temperature of the impregnation bath is in the region of 35° C. 28. Process according to claim 22 wherein, the drying retardant is solid at room temperature, the temperature of the impregnation bath is sufficient to obtain a clear solution, without the need for filtration. is decoupled from the mother board by supporting the plug housing on a resilient element, said element providing a spring force which maintains the support until the latching position is reached and then automatically disengages when the plug part is moved further in the insertion direction, said resilient element being a leaf spring, extending in said insertion direction, and having a fixed end and a free end having an angled part, said angled part cooperating with an abutment in such a way that, after reaching a predetermined pushing force, the angled part overrides the abutment by a swinging out movement of the leaf spring. 2. The invention of claim 1, wherein the abutment is formed by a material shoulder, and the angled part after negotiating the material shoulder engages into a recess in which it can be displaced in the insert direction a distance corresponding to a maximum possible decoupling path. 3. The invention of claim 2, wherein the material shoulder runs roughly parallel to the angled part and roughly at right angles to the insert direction, and a side of the recess facing the material shoulder is designed as a run-up ramp for the angled part when the plug part is being pulled out of the socket part. 4. The invention of claim 1, wherein the resilient element is a U-shaped fork having a pair of prongs, the prongs having opposed lugs with a space between the lugs, and the abutment has a width greater than that of said space, so that sufficient pushing force must be applied to spread the prongs apart to permit the abutment to pass between the lugs. 5. The invention of claim 1, wherein the resilient element is disposed on the daughter board and the abutment is disposed on the plug part. 6. The invention of claim 1, wherein the resilient element is a separate bent piece of metal and includes anchoring means for anchoring the resilient element at a fixing location. 7. The invention of claim 1, further comprising an insert housing providing at least one guide passage for the plug part, said resilient element being held in said insert housing. 8. The invention of claim 7, wherein the insert housing is displaceably mounted in a limited manner on a daughter board on a plane which runs roughly perpendicular to the plane of the daughter board and perpendicular to the insert direction. 9. The invention of claim 1, wherein the resilient element, in its latching position, latches into an undercut on the socket part, and the locking element comprises a lever arm which cooperates with at least one guiding slide on the insert housing in a manner such that on pulling back the plug housing the locking element is released. 10. The invention of claim 9, wherein the locking element is a lever releasably fixable on the plug housing, said lever having two arms, wherein one lever arm has a detent pawl for engaging the undercut, and the other lever arm has at least one guide element which cooperates with the guiding slide. 11. The invention of claim 9, wherein the guiding slide is a ramp arranged on a lateral wall of the guide passage. 12. The invention of claim 9, wherein the guiding slide is covered by a releasable cover comprising a centering element which cooperates with a corresponding centering element on the socket part. 13. The invention of claim 1, comprising at least two plug parts and at least two corresponding socket parts arranged in a common socket housing.
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