Control lever seal
AssigneeInternational Harvester Company
InventorsKarl-Heinz Luck, Albert Kallenberg, Manfred Schnippering, Herbert Moeselaken
Life of this patent
Estimating the term…
Abstract
Device to seal slot-shaped openings provided for the passing-through of operating levers which are supported in a pivoting manner on one plane and are either actuated by hand or by foot and which features sealing elements, one of them assigned to each opening.
Claims1
In a device to seal a surface penetrated by a pivoted operating lever having a substantially constant cross-section along its length, which lever extends through a slot in the surface, a pair of sealing elements of flexible material secured to said surface, one on each side of said slot and normally engaging to seal said slot, and rims formed on said sealing elements;
- an improved closing element comprising:
- a pair of mating sections;
- a longitudinal rim groove formed in each section to accept said rims;
- a lever groove in each section transverse to said rim groove and having a shape and size which is complementary to and slidingly engageable with said lever when said sections are connected around said lever;
- said rim groove in each section angling toward the other section on each side of said lever groove;
- a wedge formed on opposite ends of each section and positioned to protrude into the rim groove on the other section;
- and
- releasable fastening means for connecting said sections around said lever whereby the rims are operated and closed around said lever, as it is pivoted, within said closing element, while allowing minimal contact with said lever.
Dependencies are inferred from the claim text.