Electrical connector prong lock
Patent 5427543 Issued on June 27, 1995. Estimated Expiration Date: 
May 2, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 2, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2528121 2801394 Safety socket assembly Electrical receptacle with releasable locking means Patent #: 4136919 InventorApplicationNo. 235874 filed on 05/02/1994US Classes:439/346Adapted to engage contact of mating partExaminersPrimary: Nguyen, KhiemInternational ClassH01R 004/50AbstractAn electrical connector prong lock including a spring loaded insulating pin which is passed through a bearing member affixed to the electrical connector prong lock and through a hole commonly found near the end of a prong of a male electrical plug. A sliding cam member is employed to move the insulating pin member into and out of engagement. In an alternate embodiment the enlarged end of a ground return prong is engaged by a forked insulating member affixed to the electrical connector prong lock thereby preventing prong release. | |
