Adjustable interval timer
AssigneePaul Guilden
InventorMiklos Von Kemenczky
Life of this patent
Estimating the term…
Abstract
Timing apparatus comprising a housing having a fluid-containing conduit and a body movable in the conduit under the influence of gravity includes a valve for controlling circulation of fluid in the conduit and thereby controlling the time elapsed during movement of the body between preselected locations. The housing supports a magnet for sliding movement when the body descends to its lowermost location and a member responsive to such magnet movement initiates audible output indication.
Claims16
Timing apparatus comprising a housing containing a fluid, conduit means in said housing for circulating said fluid, body means in said conduit means for gravity-induced movement between first and second preselected locations in said housing and means for controlling circulation of fluid in said conduit means, thereby controlling the time elapsed in said gravity-induced movement of said body between said first and second locations, said fluid circulation control means comprising a valve having a fluid conducting element slidably supported in said conduit means, closure means for closing said fluid conducting element, and adjustable means for supporting said fluid conducting element in engaging relation with said closure means when said housing is in upstanding disposition whereby fluid flow in said conduit means is adjustably restricted in a first circulating direction, said fluid conducting element sliding from said engaging relation with said closure means when said housing is inverted from said upstanding disposition thereof whereby fluid flow in said conduit means is substantially unrestricted in a second circulating direction opposite to said first circulating direction.
Timing apparatus comprising a housing having a fluid-containing conduit, body means comprised of magnetically-attractable material for gravity-induced movement in said conduit from a first location to a second location, a magnet translatable in said housing by magnetic force of attraction between said magnet and said body means upon movement thereof into said second location and means operative upon such magnet translation for providing output indication of said movement of said body means into said second location.
Apparatus for indicating the passage of a predetermined time period comprising an upstanding housing having a first fluid-containing passage, first body means comprised of magnetically-attractable material for movement throughout said first passage for defining said time period, a second passage vertically below said first passage and having upper and lower end walls, a magnet movable in said second passage, a third passage vertically below said second passage and second body means comprised of magnetically-attractable material for movement in said third passage, said first body means having mass greater than said second body means whereby said magnet impedes movement of said second body means by magnetic force of attraction therebetween when said magnet is disposed at said second passage lower end wall and whereby said magnet is moved to said second passage upper end wall by magnetic force of attraction to said first body means when said first body means is moved by gravity throughout said first passage, said second body thereupon being moved by gravity throughout said third passage and providing indication of said passage of said time period.
Dependencies are inferred from the claim text.