David Jon Haines
Nursing in Salt Lake City, UT

4026219, May 31, 1977

Mar 12, 1976

5/666204

Robert N. Shupe - Salt Lake City UT
David C. Haines - Salt Lake City UT

A47B 306

108 62

A table for occasional or regular use that can be easily set-up from knocked down and preferably rolled up carrying condition, and vice versa, comprises a preferably roll-up table top of side-by-side slats hingedly interconnected by a flexible sheet or strip covering, and a knock-down four-legged, supporting structure for the table top. The table top, whether roll-up or otherwise, is reversible and is securable to the set-up supporting structure by snap fasteners or the like. A male member of mating snap fasteners is secured on top and preferably at one side of one end of the supporting structure and a similar member is secured on top and preferably at the opposite side and other end of the supporting structure. Female members are secured in corresponding locations on both sides of the table top. The supporting structure preferably comprises a pair of interfitting, two-legged, mutually opposite end sections, which are similarly foldable for association with the roll-up top as a small bundle.

3934353, Jan 27, 1976

Sep 19, 1974

5/507474

David C. Haines - Salt Lake City UT

G01C 1500

33262

This invention relates to surveying instruments of the type by means of which measurements relating to deviation from a true level line, distance, vertical angles, linear alignment of points at various elevations, horizontal angles and the like may be obtained. The instrument comprises a rigid transparent plate or plates containing a mirrored reflection surface. The plate is suspended from a point on the vertical axis through the center of gravity of said plate, and a hairline extends across said plate and mirrored reflection surface in a direction perpendicular to the vertical suspension axis. A set of calibrated marks and a vertical datum line coinciding with or parallel to the vertical suspension axis are imprinted on the plate above and below the hairline. The hairline acts as a horizontal datum line and is used together with the calibrated marks and vertical datum line to determine relative measurements of level, distance, vertical angles, linear alignment and horizontal angles by direct observation or sighting through the instrument.