| US 7,510,247 B2 | ||
| Ice resurfacing machine as well as system and method for ice maintenance | ||
| Timo Pirilä, Kalanti AS (Finland) | ||
| Assigned to Kalannin Kaspek Oy, Kalanti AS (Finland) | ||
| Appl. No. 10/549,186 PCT Filed Mar. 17, 2004, PCT No. PCT/FI2004/000151 § 371(c)(1), (2), (4) Date May 22, 2006, PCT Pub. No. WO2004/083528, PCT Pub. Date Sep. 30, 2004. |
||
| Claims priority of application No. 20030398 (FI), filed on Mar. 17, 2003; and application No. 20030399 (FI), filed on Mar. 17, 2003. | ||
| Prior Publication US 2006/0226695 A1, Oct. 12, 2006 | ||
| Int. Cl. E01H 4/02 (2006.01) | ||
| U.S. Cl. 299—1.5 [299/24] | 18 Claims |
| 1. Ice resurfacing machine which comprises means for monitoring shape of an ice surface, a blade, which is arranged to scrape
the ice, and means for controlling position of the blade for achieving desired scraping result, which comprise
power means coupled to the blade for moving the blade, and
control means of the power means for forming control data of the power means,
electrical means for transferring the control data obtained by the control means to the power means,
a sensor coupled to the blade or to the power means, and arranged to be monitoring the position of the blade, wherein the means for controlling the position of the blade further comprise
electrical communication transfer means for transferring a signal from the sensor to the control means of the power means,
means for adjusting the minimum and maximum scraping depth of the blade.
|