JOHN HENRY CANTLIN
Engineering in Lincoln Center, MA
License number
Massachusetts 6110
Issued Date
Feb 29, 1952
Expiration Date
Jun 30, 1998
Type
Mechanical Engineer
Address
Address
Lincoln Center, MA 01773
Professional information
Garage Door Lock
US Patent:
4295016, Oct 13, 1981
Filed:
Dec 14, 1979
Appl. No.:
6/103532
Inventors:
John H. Cantlin - Lincoln MA
Assignee:
Hudson Lock, Inc. - Hudson MA
International Classification:
H01H 2706
US Classification:
200 44
Abstract:
The invention is a lockable electrical switch including a cylindrical plug mounted within a shell for rotary movement between locked and unlocked positions and for axial movement between active and inactive positions, the plug defining a keyway and a plurality of tumblerways intersecting therewith. Residing in the tumblerways are tumblers that operatively engage the shell and the plug so as to prevent relative rotation therebetween in the absence of a proper key in the keyway. A movable contact is mounted for movement with the plug and a stationary contact is shaped and arranged so as to be engaged by the movable contact with the plug in both its unlocked and active positions but to be disengaged therefrom with the plug in either of its locked or inactive positions. Closure of the switch by engagement of the contacts requires the use of a key to rotate the plug into an unlocked position.
Multi-Stop
US Patent:
4805505, Feb 21, 1989
Filed:
Mar 2, 1988
Appl. No.:
7/162832
Inventors:
John Cantlin - Lincoln MA
International Classification:
B27B 520, B27B 2702
US Classification:
83467R
Abstract:
A wood working accessory including a vice with a first jaw having an engagement surface for engaging one surface of a fence or the like, a second jaw for engaging an opposite surface of the fence, a yoke joining the first and second jaws and adapted to extend over an edge of the fence extending between the opposite surfaces thereof, and an adjustment mechanism operable to produce relative movement between the first and second jaws in a given direction substantially perpendicular to the engagement surface so as to produce selective forcible engagement of the fence between the first and second jaws. Also included are a first stop retainer on the first jaw, and adapted to retain a stop member and guide movement thereof relative to the first jaw in a first direction substantially perpendicular to the given direction, and a second stop retainer on the first jaw and adpted to retain a stop member and guide movement thereof relative to the first jaw in a second direction substantially perpendicular to both the given direction and the first direction.