JOHN R TAFT
Engineering in Duxbury, MA
License number
Massachusetts 14464
Expiration Date
Jun 30, 2004
Type
Mechanical Engineer
Address
Address
Duxbury, MA 02332
Personal information
See more information about JOHN R TAFT at radaris.comName
Address
Phone
PO Box 2899, Duxbury, MA 02331
9 Biscayne Dr, Billerica, MA 01821
165 State St, North Adams, MA 01247
180 Main St, Amesbury, MA 01913
17 Factory Pl #3-FL, Chicopee, MA 01013
Professional information
Low Profile Shelf Lock
US Patent:
4666117, May 19, 1987
Filed:
Oct 9, 1985
Appl. No.:
6/785865
Inventors:
John R. Taft - Duxbury MA
Assignee:
P.X. Industries, Inc. - W. Hanover MA
International Classification:
A47B 5704
US Classification:
248243
Abstract:
A low profile shelf lock of improved construction is disclosed for securing shelves in cabinets and the like. The shelf lock includes a body portion formed of a bottom half and a top half resiliently joined thereto at an angle and defining a rectangular window. A resilient crescent-shaped protrusion is formed in the top half of the body portion and defines a shelf-engaging semicircular edge that extends substantially along the upper length of the window. A shelf support extends from the bottom half of the body portion in a direction normal thereto and flush with the bottom of the window. One or more reinforcing webs support the bottom of the shelf support to the bottom half of the body portion. A post extends from the bottom half of the body portion in a direction normal thereto but opposite to that of the shelf support and for a distance about one half of the shelf support. Preferably the post is fluted.
Wind Powering Of Turbine Having Variable Pitch Vanes
US Patent:
4392780, Jul 12, 1983
Filed:
Apr 11, 1978
Appl. No.:
5/895355
Inventors:
John R. Taft - Duxbury MA
International Classification:
F03D 300
US Classification:
416 17
Abstract:
A vertical rotatable shaft is fitted with sets of radial arms extending from it to which are connected the leading edges of vanes rotatable about that member as axis. The vanes have sheets of flexbile material so that they may act like sails under pressure of the wind. A cam track, machined in a horizontal surface of a planar member just adjacent and outside the path of the vanes, guides the trailing edges of the vanes so that as the shaft rotates, the vanes are oriented about their axes to reach, run and tack before the wind. The member having the surface defining the cam track is attached to a tail assembly that orients the cam track to the wind direction. The inner assembly, which is pinned to the shaft makes a power rotor. The outer assembly which is free to rotate independently of the shaft is a cam cage.