|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||482/017; 482/908; 403/109.3; 403/109.7|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 6 인용 특허 : 23|
A hurdle has contiguous trigger tubes along the telescoping tubes. A trigger mechanism inside each trigger tube is used to adjust the height of the hurdle. The trigger mechanism contains a pivoting vertical rod with an inwardly directed perpendicular upper end that extends out of the hole in the trigger tube to form a button and an outwardly directed perpendicular pin at its lower end that engages one of the holes in the upright. The vertical rod has a horizontal pivot bar attached midway along its outward surface. The lower end of the vertical rod is co...
We claim: 1. A hurdle comprising: (a) a base comprising two parallel horizontal legs, each leg having a leading end and a trailing end; (b) two uprights, each upright having an inward surface and extending upwardly from the trailing end of a leg and having a plurality of holes spaced apart vertically along its inward surface; (c) two telescoping tubes, each tube having a top end and being adapted to fit over an upright, each tube having an inward surface and a contiguous trigger tube along its inward surface, each trigger tube having an inward surface a...