Harold L Stavenau

US Patent:

42469813, Jan 27, 1981

Filed:

Aug 17, 1979

Appl. No.:

6/067532

Inventors:

Harold L. Stavenau - Owatonna MN

Assignee:

Truth Incorporated - Owatonna MN

International Classification:

E06C 108
E06C 1393

US Classification:

182116

Abstract:

A portable observation stand having a ladder formed of upper and lower ladder sections pivotally interconnected at adjacent ends for movement between a folded position and an extended position in end-to-end relation, a seat and a foot-support member are both pivotally connected to the upper ladder section with the seat arranged to be in operative position above and rearwardly of the foot-support member. The seat is disposed rearwardly of the rails of the upper ladder section and the foot-support member has a pivotable part thereof movable to an overlapped position with the remainder thereof whereby a person can climb the ladder to the seat level without obstruction thereby. Linkage structure interconnects the seat and foot-support member for simultaneous movement thereof between an operative position extending at a substantial angle to the upper ladder section and a storage position substantially parallel with the upper ladder section to facilitate folding of the stand.

US Patent:

40958272, Jun 20, 1978

Filed:

Dec 23, 1976

Appl. No.:

5/753703

Inventors:

Harold L. Stavenau - Owatonna MN

Assignee:

Truth Incorporated - Owatonna MN

International Classification:

E05C 500

US Classification:

292 65

Abstract:

A window lock and, more particularly, a check rail lock which can be mounted in association with a double hung window having a center vertical muntin. The window lock has a casing housing a linearly movable locking unit with locking members having a locking notch at one end for engagement with catch means carried by the adjacent window sash, an operating unit with operating members movably mounted in the casing and movable between window unlocked and locked positions and with pin and slot structure interconnecting the locking members and the operating members with the casing whereby the locking members are guided in the linear movement thereof to an advanced position as the operating unit moves toward the locked position and the locking members are then raised into engagement with the catch means and withdrawn to tightly draw and lock the window sash together as the operating unit moves to the final locked position.

US Patent:

41344740, Jan 16, 1979

Filed:

Jan 31, 1978

Appl. No.:

5/873791

Inventors:

Harold L. Stavenau - Owatonna MN
Reuben W. Kaplan - Owatonna MN

Assignee:

Truth Incorporated - Owatonna MN

International Classification:

A47C 910
A45F 326

US Classification:

182187

Abstract:

A portable observation stand for mounting on trees having a wide range of diameters. The stand includes a frame, which is detachably secured to a selected tree, and an articulated ladder which may be retained in a climbing position, for entry by an outdoorsman, and in a base position to provide support for a floor during use. A U-shaped rail may be mounted on the frame, and a shroud which encloses the stand may be secured to the rail.