US 11,673,457 B2
Bias regulated rolling truck bed cover
Chad Carter, Manchester, MI (US); Ryan DeLong, Stockbridge, MI (US); Jerome Facchinello, Grand Blanc, MI (US); William Cohoon, Whitmore Lake, MI (US); Robert Gaarder, West Bloomfield, MI (US); and Wilbur Paul Winkle, III, Ypsilanti, MI (US)
Assigned to Extang Corporation, Ann Arbor, MI (US)
Filed by Tectum Holdings Inc., Ann Arbor, MI (US)
Filed on Oct. 14, 2021, as Appl. No. 17/501,147.
Application 17/501,147 is a division of application No. 16/910,200, filed on Jun. 24, 2020, granted, now 11,186,149.
Application 16/910,200 is a continuation of application No. 15/940,502, filed on Mar. 29, 2018, granted, now 10,737,563.
Claims priority of provisional application 62/615,278, filed on Jan. 9, 2018.
Prior Publication US 2022/0032751 A1, Feb. 3, 2022
Int. Cl. B60P 7/04 (2006.01); B60J 7/06 (2006.01)
CPC B60J 7/068 (2013.01) [B60P 7/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A tonneau system comprising:
a. a tonneau cover;
b. a canister including:
i. a track for guiding the tonneau cover within the canister during movement of the tonneau cover relative to the canister; and
ii. a retraction system including:
1. A drive roller;
2. A drive gear; and
3. a bias member that is located within the drive roller and is configured to move the drive roller and the drive gear to assist in moving the tonneau cover relative to the canister,
wherein the drive roller is located outside of the track.