§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US3863194A Expired / Lapsed US ⏱️ 0.0 years remaining

Hermetically sealed adjustment for high voltage potentiometer

Assignee: TE Connectivity Corp
•
Filing: 1973-11-26
•
Granted: 1975-01-28
•
Expires: 1993-11-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The disclosure relates to a potentiometer for use in high voltage systems of the order of 8 kilovolts wherein the resistance of the potentiometer is adjustable externally of a can containing the potentiometer. The potentiometer is electrically insulated from the externally extending adjusting screw and is hermetically sealed within the can. The adjustment of potentiometer resistance is provided by connecting an adjusting screw which extends through a housing to a threaded rod which is secured to a metal bellows which is sealed in the internal housing within the can to hermetically seal the adjusting screw from the housing interior portion. The threaded rod is coupled via an insulating coupler or spacer to the slide rod of the potentiometer whereby axial movement of the threaded rod moves the slide rod and thereby controls the resistance of the potentiometer. The potentiometer is mounted in the housing and insulated therefrom by insulating spacers, the housing and can being filled with oil.

Inventors

  • 👤 Jr Charles Edward Dorwart
  • 👤 Meade Goodman Bierly
  • 👤 Jr Charles Nelson Fendrich
  • 👤 John Thomas Roland

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 23:32
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 149 words
An externally adjustable hermetically sealed high voltage potentiometer systeM comprising, an electrically insulating hermetically sealed housing, a potentiometer in the form of a self-contained unit mounted on an interior wall of the housing adjacent one end thereof, a linearly movable member for varying the resistance of the potentiometer slidably supported on the potentiometer unit and projecting from the unit into the housing, rotatable means extending through the opposite end wall of the housing with its inner end terminating short of the linearly movable member, insulating coupling means secured to the linearly movable member and provided with means cooperating with the inner end of the rotatable means upon rotation thereof to move the linearly movable member, and expandable means surrounding said rotatable means and secured to the other end wall about the rotatable means and to the cooperating means hermetically sealing said rotatable means from the interior of the housing.
Claim 2
Dependent Claim 149 words
An externally adjustable hermetically sealed high voltage potentiometer systeM comprising, an electrically insulating hermetically sealed housing, a potentiometer in the form of a self-contained unit mounted on an interior wall of the housing adjacent one end thereof, a linearly movable member for varying the resistance of the potentiometer slidably supported on the potentiometer unit and projecting from the unit into the housing, rotatable means extending through the opposite end wall of the housing with its inner end terminating short of the linearly movable member, insulating coupling means secured to the linearly movable member and provided with means cooperating with the inner end of the rotatable means upon rotation thereof to move the linearly movable member, and expandable means surrounding said rotatable means and secured to the other end wall about the rotatable means and to the cooperating means hermetically sealing said rotatable means from the interior of the housing.
Claim 3
Dependent Claim 25 words
A potentiometer system as set forth in claim 1 wherein said housing is filled with oil and further including a metal can surrounding said housing.
Claim 4
Dependent Claim 26 words
A potentiometer system as set forth in claim 1 wherein the inner end of said rotatable means and the means cooperating therewith comprise interfitting screw threads.
Claim 5
Dependent Claim 26 words
A potentiometer system as set forth in claim 2, wherein the inner end of said rotatable means and the means cooperating therewith comprise interfitting screw threads.
Claim 6
Dependent Claim 16 words
A potentiometer system as set forth in claim 1 wherein said expandable means comprises a bellows.
Claim 7
Dependent Claim 16 words
A potentiometer system as set forth in claim 2 wherein said expandable means comprises a bellows.
Claim 8
Dependent Claim 16 words
A potentiometer system as set forth in claim 3 wherein said expandable means comprises a bellows.
Claim 9
Dependent Claim 16 words
A potentiometer system as set forth in claim 4 wherein said expandable means comprises a bellows.

References Cited (Backward Citations)

US1478815A Cited
US3187289A Cited
US3248678A Cited
US3441894A Cited
US3373395A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-27 1978-07-29 1979-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-27 1982-07-29 1983-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-27 1986-07-29 1987-01-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag