Patent ID: 9581276
Date: 2017-02-28
CPC Classifications: F16L,Y10T

Claim:
1. A fluid system, comprising: a loading arm; a swivel joint connectable between the loading arm and a standpipe associated with a fluid source to allow fluid communication between the fluid source and the loading arm, wherein the swivel joint enables movement of the loading arm about one or more axes of rotation; a counterbalancing mechanism connected between the loading arm and the swivel joint, the counterbalancing mechanism having a first end and a second end and being configured to apply a counterbalancing force to oppose displacement of the loading arm, wherein the counterbalancing mechanism comprises a linear spring; and an adjustment mechanism adapted to selectively adjust a position of the counterbalance mechanism relative to the loading arm, whereby the counterbalancing force applied by the counterbalancing mechanism is selectively adjusted, wherein the adjustment mechanism comprises a guide plate connected to the swivel joint and the guide plate comprises a guide slot configured so the counterbalancing mechanism may be selectively adjusted in an infinite number of positions.