Soon A Kim

US Patent:

48077208, Feb 28, 1989

Filed:

Jan 15, 1988

Appl. No.:

7/144123

Inventors:

Soon Y. Kim - Fairfax VA

International Classification:

E06C 744

US Classification:

182205

Abstract:

A ladder leveling attachment (10) for adjusting the length of one or both legs of a ladder (L) to compensate for uneven surfaces, has a housing (11) with means (12, 13, 14) for securing it to a leg of a ladder, and an extendible leg (15) is telescopically received in the housing for movement inwardly and outwardly of the housing to selectively increase or decrease the length of the leg. A plurality of angled notches or slots (25) are formed in the housing and a spring-biased latching pin (35) is carried by the extendible leg and is adapted to engage in the slots for latching the extendible leg in an adjusted position. The opposite ends (38, 39) of the latching pin project outwardly beyond the opposite sides of the housing and may be grasped in one hand to release the latching pin from the slots to move the extendible leg along channels (24) to a new position. Thereafter, the pin is simply released and the spring urges the pin into seated engagement in adjacent notches (25).

US Patent:

55000070, Mar 19, 1996

Filed:

Jun 9, 1994

Appl. No.:

8/257284

Inventors:

Yong H. Kim - Silver Spring MD
Soon J. Kim - Silver Spring MD

International Classification:

A47C 2100
A61F 700

US Classification:

607104

Abstract:

A therapeutic, portable water heating bed assembly having a pair of beds, includes a water heater attached to and disposed within a base member of the bed, a water pillow which functions as a water tank, a straight water pipe extending through a concrete plate of the base member independently, a power control switch connected to the water heater, and a laminated paper on the concrete plate, whereby the bed assembly can be easily moved, the water pillow can maintain cold water, and the laminated paper and the cool water pillow can warm and treat a human body lying on the beds.