Howard D Davis

US Patent:

39817628, Sep 21, 1976

Filed:

Aug 3, 1972

Appl. No.:

5/278173

Inventors:

Howard G. Davis - Wellesley MA
Emerson B. Hovey - Wayland MA
Edwin E. Sylvester - Danvers MA

Assignee:

USM Corporation - Boston MA

International Classification:

B65C 925
C09J 314

US Classification:

156322

Abstract:

Method of bonding a resin film with three-dimensional patterned surface to sheet metal in which a coating of curing adhesive on the metal surface is partially cured to a firmer condition in an initial heating, the metal and adhesive are cooled to a temperature at which the cure rate is slowed but the adhesive is tacky for adhesive engagement with the resin film, the resin film is pressed against the adhesive and the assembly promptly chilled.

US Patent:

41996666, Apr 22, 1980

Filed:

Jul 25, 1977

Appl. No.:

5/818406

Inventors:

Howard S. Davis - Sharon MA

International Classification:

H04M 131

US Classification:

179 90R

Abstract:

A straight line dialing mechanism for a telephone employs a movable plate having finger tip accommodating apertures. Initial movement of the plate to an index position causes a spline on the plate to close a switch that short circuits the telephone receiver and winds a spring that supplies the force for return of the plate. Return movement of the plate is controlled by a speed governor. The plate carries a series of nodes which actuate the leaf of a normlly closed switch to momentarily open the switch with the passage of each node in the return of the plate to its initial position. The leaf carries a ratchet head that enables the nodes to pass in the opposite direction without appreciable flexure of the leaf.