An anti-fouling anchor for boats, and the like and comprising a shank member having an axially outwardly extending stud member at one end thereof and a transversely extending rod member journalled at the opposite end thereof, a spring urged release rod assembly secured to the transversely extending rod member and releasably engageable with stud member and normally engaged with the stud member for utilization of the anchor in the usual manner for securing the boat in a preselected position in a body of water. Upon accidental lodging of the anchor at the bottom of the body of water, the release rod assembly may be disengaged from the stud member whereby the shank is free to rotation about the longitudinal axis of the transverse rod, thereby permitting the anchor to be "backed away" from the lodged position thereof.
An anchor has a shank pivotally connected to a fluke structure via a pivot mount for rotation between locked and release configurations. The shank has a locking surface distal from the pivot mount engaging a portion of the fluke structure to resist the rotation in the locked configuration. An elastically deformable member couples the shank to the pivot mount and the rotation of the shank may require the deformable member to be elastically deformed and the locking surface to be displaced toward the pivot mount. A float may be attached to the shank at a position spaced away from the fluke structure. A pulling force component applied to the shank in a direction from the pivot mount toward the locking surface may provide greater resistance to rotation of the shank. Other anchor embodiments are also disclosed.
Systems and methods form curvilinear lesions in tissue within the body. The systems and methods expose tissue to electrode arrays with intersecting energy emitting elements. The systems and methods apply ablating energy for emission by the elements to create intersecting curvilinear lesion patterns in the tissue.
