Invention Grant
- Patent Title: Back saver (A-frame pully system)
- Patent Title (中): 后备保护(A-frame pully系统)
-
Application No.: US13839434Application Date: 2013-07-02
-
Publication No.: US09281667B2Publication Date: 2016-03-08
- Inventor: Randall Wayne Curts
- Applicant: Randall Wayne Curts
- Main IPC: H02G1/08
- IPC: H02G1/08 ; H02G1/06

Abstract:
A wire feeding pulley A-Frame System is provided for feeding electrical, telephone, communication wires ect into manhole, transformers, switch gears ect., including a frame having four vertical rails one horizontal rail at the top which has four short pieces of square tubing welded to it which the vertical rails sleeve over and are held together by horizontal pins. The bottom of the frame has four horizontal pieces welded into a square that have four short vertical pieces welded on top of them that the vertical rails can sleeve into and be held together by horizontal pins. It has three vertical pieces of square tubing welded to the bottom side of the top horizontal rail that three pulleys can be attached to for wire to be fed through. There is also a square tube that can be attached to the bottom frame that has a smaller square tube inside of it that has a pulley that pins on the end of it, making it a snorkel attachment for feeding into devices with small doorways.
Public/Granted literature
- US20130320280A1 BACK SAVER (A-FRAME PULLY SYSTEM) Public/Granted day:2013-12-05
Information query