US 12,084,883 B1
Lift assembly for a spa cover
John Joseph Cunerty, Toronto (CA); and Roy Fillmore, Mississauga (CA)
Assigned to 1140298 Ontario Ltd., Mississauga (CA)
Filed by 1140398 Ontario Ltd., Mississauga (CA)
Filed on Aug. 10, 2023, as Appl. No. 18/232,462.
Application 18/232,462 is a continuation of application No. 18/139,420, filed on Apr. 26, 2023, granted, now 11,795,716.
This patent is subject to a terminal disclaimer.
Int. Cl. E04H 4/08 (2006.01)
CPC E04H 4/084 (2013.01) 20 Claims
OG exemplary drawing
 
1. A lift assembly for assisting a user to move a spa cover off of a spa, the lift assembly comprising:
a lever arm longitudinally extending from a lever arm first end to a lever arm second end,
the lever arm having a lever arm joint proximate the lever arm first end; and
first and second linear drivers, each having a linear driver first end and a linear driver second end,
the lever arm having opposing first and second sides,
the linear driver first end of the first linear driver connected to the first side of the lever arm and the linear driver first end of the second linear driver connected to the second side of the lever arm,
wherein,
the lever arm joint provides the lever arm with movability between a cover closed position, and a cover open position, and
in the cover closed position the first and second linear drivers are operable to urge the lever arm to move toward the cover open position.
 
14. A lift assembly for assisting a user to move a spa cover of a spa, the lift assembly comprising:
a first lever arm longitudinally extending from a first lever arm first end to a first lever arm second end,
the first lever arm having a first lever arm joint proximate the first lever arm first end;
a second lever arm longitudinally extending from a second lever arm first end to a second lever arm second end,
the second lever arm having a second lever arm joint proximate the second lever arm first end;
a spa cover crossbar extending transversely from proximate the first lever arm second end to proximate the second lever arm second end,
the spa cover crossbar having an outer surface defining a cross-sectional shape of the spa cover crossbar, and at least a portion the cross-sectional shape of at least a portion of the spa cover crossbar having a convexly curved portion,
the spa cover crossbar having at least two crossbar portions telescopically connected to each other, the at least two crossbar portions slidable relative to each other from a first position in which the spa cover crossbar has a first length to a second position in which the spa cover crossbar has a second length, wherein the second length is greater than the first length,
a first crossbar portion of the at least two crossbar portions having a bore to telescopically receive an end of a second crossbar portion of the at least two crossbar portions,
the bore of the first crossbar portion having a bore cross-sectional shape;
the end of the second crossbar portion having a second crossbar portion end cross-sectional shape;
wherein when the end of the second crossbar portion is received by the bore of the first crossbar portion, the bore cross-sectional shape and the second crossbar portion end cross-sectional shape together inhibit rotation of the first crossbar portion relative to the second crossbar portion,
wherein,
the first and second lever arm joints respectively provide the first and second lever arms movability between a cover closed position, and a cover open position; and
in the cover closed position each linear driver of the at least one linear driver is operable to urge the lever arm to move toward the cover open position.