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Dover Corporation (de-sta-co. Div.)

De-sta-co Division/dover Corporation

Alexander W McPherson

Hazem Nihad Hamed

Daniel J Morris

An apparatus for growing diffraction quality, protein crystals by vapor diffusion techniques. The apparatus includes a plurality of equilibrating solution reservoirs each having a side wall terminating in a top wall disposed in a first plane; a column disposed within each of the equilibrating solution reservoirs, each column having a protein solution receptacle including a side wall terminating in a top wall disposed in a second plane spaced from the first plane; and a cover having a non-greasy adhesive on one surface therof for sealable engagement with the top walls of the equilibrating solution reservoirs for sealing the reservoirs relative to atmosphere.

Crystal growing apparatus

Air pressure actuated locking power clamp released from static loaded condition by air pressure no greater than locking pressure notwithstanding a differential smaller release pressure area due to piston rod of air cylinder. Highly pressurized needle bearings in straight track portions of the clamp which actuate links connected to a pivoted clamp arm are critical elements in providing unexpected low pressure release. Similar needle bearings in all loaded pivots of conventional toggle clamps provide 100% improvement in ratio of apply force to clamping force.

Locking power clamp

Air pressure actuated locking power clamp released from static loaded condition by air pressure no greater than locking pressure notwithstanding a differential smaller release pressure area due to piston rod of air cylinder. Highly pressurized needle bearings in straight track portions of the clamp which actuate links connected to a pivoted clamp arm are critical elements in providing unexpected low pressure release.

Growing community of inventors

Farmington, MI, United States of America

Alexander W McPherson