Patent ID: 6932690

Claim:
An adjustable roof ventilator jack for operationally coupling a roof ventilator to a venting aperture extending through a roof, said roof having a roof slope adjacent said venting aperture, said roof ventilator having a ventilator base section including a ventilator base section peripheral wall; said roof ventilator jack comprising: a base section, said base section including a base section front wall, a substantially opposed base section rear wall and a pair of substantially opposed base section side walls extending between said base section front and rear walls, said base section defining a base section lower peripheral edge and an opposed base section upper peripheral edge, said base section lower peripheral edge extending in a base reference plane; a pivotable section including a pivotable section front wall and a pair of pivotable section side walls extending substantially rearwardly from said pivotable section front wall, said pivotable section front wall being pivotally attached to said base section for pivotal movement between an extended configuration wherein said pivotable and base section front walls are in a substantially parallel relationship relative to each other and a retracted configuration wherein the inner surface of said pivotable and base section front walls form an obtuse pivotable-to-base section angle; the inner surface of said pivotable and base section front walls form a pivotable-to-base section angle having a value smaller than 180 degrees, the distance between said base section upper and lower peripheral edges being greater about said base section front wall than about said base section rear wall; a position lock for selectively locking said base and pivotable section front walls in a predetermined angular relationship relative to each other.