ROBERT D LEIGHTON
Broker in Brockton, MA

License number
Massachusetts 104972
Issued Date
Dec 9, 1987
Expiration Date
Aug 3, 1990
Type
Salesperson
Address
Address
Brockton, MA 02302

Professional information

Robert Leighton Photo 1

Removable Electrical Connector

US Patent:
4154498, May 15, 1979
Filed:
Oct 31, 1977
Appl. No.:
5/847164
Inventors:
Theodore H. Wood - Brewster MA
Robert D. Leighton - Brockton MA
Assignee:
Alden Research Foundation - Westboro MA
International Classification:
G12B 908, H02B 104
US Classification:
339128
Abstract:
An electrical connector which can be mounted on a panel. The connector includes a self contained locking mechanism with a pair of integrally molded resilient arms that are spaced from the body of the connector by hinges and which are designed to oppose a shoulder disposed around the perimeter of the face of the connector and to grip the panel for a secure fit.


Robert Leighton Photo 2

Electronic Circuit Encapsulation

US Patent:
4339407, Jul 13, 1982
Filed:
Oct 2, 1980
Appl. No.:
6/192950
Inventors:
Robert D. Leighton - Brockton MA
Assignee:
Alden Research Foundation - Brockton MA
International Classification:
B29C 602
US Classification:
264229
Abstract:
Encapsulation of electrical circuitry by high pressure injection molding of an insulative thermoplastic material about electrical components supported in a pre-formed carrier which is itself supported in an outer mold. The carrier has an internal configuration of lands and grooves which facilitates circuit insertion, the walls of which carrier are yieldable to flex inwardly to permit registration of the carrier walls with the outer mold and to securely hold the circuit during the injection process during which both the mold and the carrier are filled. The carrier is vented to insure complete encapsulation throughout the circuitry therein.


Robert Leighton Photo 3

Polarized Electrical Outlet

US Patent:
4243291, Jan 6, 1981
Filed:
Nov 3, 1978
Appl. No.:
5/957461
Inventors:
Robert D. Leighton - Brockton MA
Assignee:
Alden Research Foundation - Brockton MA
International Classification:
H01R 1364, H01R 1350
US Classification:
339184M
Abstract:
A polarized electrical outlet of minimum size adapted to be fitted into a panel including a cap and a base, welded together and formed of thermoplastic material.


Robert Leighton Photo 4

Molding Method

US Patent:
4235832, Nov 25, 1980
Filed:
Jul 31, 1978
Appl. No.:
5/929404
Inventors:
Robert D. Leighton - Brockton MA
Assignee:
Alden Research Foundation - Brockton MA
International Classification:
B29C 2700
US Classification:
264230
Abstract:
A method of manufacturing an electrical connector utilizing an electrical conducting wire sheathed in a highly elastic, stretchy, squeezable insulating material and embedding it within a thermoplastic material through the use of high pressure injection molding. In the method, the sheathed wire is fitted with a heat shrinkable sleeve of plastic material that is subsequently drawn about the sheathed wire to form a rigid pressure barrier. The assembly is then disposed in a mold with the sleeve disposed in an egress of the mold and the thermoplastic material is injected. The sleeve will form the rigid plug-like cover which prevents the plastic from oozing by the squeezable insulating material.