Strutless umbrella
AssigneeAmerican Holtzkraft, Inc.
InventorPhillip C. Apple
Life of this patent
Estimating the term…
Abstract
A strutless umbrella includes a central post, either an inner plunger or tube, a canopy assembly including ribs pivotally mounted on the upper end of the central post. Links connect the ribs to the inner plunger or tube. Movement of one of the ribs moves the plunger or tube which moves the remaining ribs. A latch pin holds the umbrella in the open position.
Claims20
An umbrella including a central post having an upper end, a plurality of ribs surrounding the post, said ribs having upper ends, rib pivot connections located a distance from the upper ends of the ribs, said connections joining the ribs to the upper end of the post, a member movable along the post, a plurality of links, each link having a first link connection and a second link connection, said first-link connections joining the links to the upper ends of the ribs, said second link connections joining the links to the member, and a canopy on the ribs.
An umbrella including a central post having an upper end, a plurality of ribs surrounding the post, an umbrella canopy on the ribs, said ribs having upper ends, rib pivot connections located a distance from the upper ends of the ribs joining the ribs to the upper end of the post, a member movable along the outside of the post, and a plurality of links extending between the member and the upper ends of the ribs.
An umbrella including a hollow central post having an upper end, a plurality of ribs surrounding the post, said ribs having upper ends, rib pivot connections located a distance from the upper ends of the ribs, said connections joining the ribs to the upper end of the post, a member mounted within the post for movement inside the post, a plurality of links extending between the member and the upper ends of the ribs, and a canopy on the ribs.
Dependencies are inferred from the claim text.