139results about How to "Adjustable weight" patented technology

A weight adjusting structure of a golf club head comprises a 360-degree rotatable rotary table installed in a body of a golf club head, wherein the rotary table is combined with an incomplete annular weight block at a peripheral portion on an arbitrary side thereof, so that the rotary table and the weight block form a rotary table assembly whose weight orientation can be adjusted. The weighted rotary table assembly installed in the body of the golf club head can be used to adjust a distribution of different weights around 360 degrees, whereby a preferred location of the club head's gravity center can be set according to a golfer's swing posture and a location of the club head's gravity center the golfer is used to.

Present invention relates a suspendable magnetic brush for cleaning an aquarium with curved window surface, characterized in that an upper cover with an air chamber is attached tightly to a bottom cover with a cleaning material layer underneath, and an inner cover with a magnet located therein is provided inside the air chamber, said inner cover being attached to the bottom cover while isolated from the air chamber. Said upper cover having through holes connecting the air chamber to the exterior of the device. It is possible to adjust the air or liquid in the air chamber through the holes connecting the upper cover and the air chamber so that the weight of the interior magnetic brush can be adjusted so as to balance all the forces exerted upon the interior magnetic brush. As a result the interior elements of the brush can suspend in the water and move smoothly on the aquarium window upon the manipulation of the exterior brush. With the convex edge(s) of the bottom cover matching the curved window surface of the aquarium the magnetic brush can clean both curved window surface and the planar window surface as well.

A seat cushion having a seat pad with a channel therein, the channel having a web with apertures for drainage of water away from the seat pad. The web provides a channel area on top of the web and a channel area below the web for egress of water. In one embodiment, the seat cushion is secured to a tree stand frame by straps and has a dual-section back portion that secures to a tree via a fastener at the top thereof. The dual-section back portion folds together to form a single planar construct and also folds to the seat pad portion, again to form a single planar package of collapsed ‘Z’ shape for transport or storage. In an alternate embodiment, the seat cushion, optionally with or without a back portion, is secured to a boat seat.

An adjustable apparatus for exercising the neck including an assembly connected to an anchor by a tether that has an elastic portion. The assembly includes a cap, a harness to secure the cap on the head, and a saddle piece that extends across the back of the neck. The cap can be a helmet that forms a cam surface with a channel for slideably receiving the tether and a frontal extension forming a continuation of the cam surface. The tether is secured to the posterior of the helmet so as to extend over the cam surface to the anterior portion. The head assembly further includes a tether attachment adjustment mechanism, a harness adjusting ratchet, and a semi-rigid saddle to apply pressure to the neck of the person when the harness is tightened by the harness adjusting ratchet and when the head is tipped backwardly pulling on the tether.