Patent US3247835A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3247835A Expired / Lapsed US ⏱️ 0.0 years remaining

Compression release for internal combustion engines

Assignee: Individual
•
Filing: 1964-01-08
•
Granted: 1966-04-26
•
Expires: 1984-01-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 David E Weglage
  • 👤 Albert A Weglage

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 08:04
CPC Classifications
F; F01; F01L; F01L13/00; F01L13/08

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 199 words
AN INTERNAL COMBUSTION ENGINE, WHICH COMPRISES: A CYLINDER, A CAM SHAFT, A CRANK CASE, A CHAMBER, AIR CONDUIT MEANS ESTABLISHING CONNUNICATION BETWEEB THE THE INTERIOR OF SAID CRANK CASE AND SAID CHAMBER, A VALVE MEMBER ASSOCIATED WITH SAID CYLINDER AND OPERABLE DURING NORMAL OPERATION OF SAID ENGINE ALTERNATELY TO MOVE INTO OPENING AND CLOSING POSITION, RECIPROCABLE MEANS ACTUABLE BY SAID CAM SHAFT AND OPERABLE TO CONTROL SAID MOVEMENT OF SAID VALVE MEMBER, A CONTROL MEMBER MOVABLY ARRANGED IN SAID CHAMBER AND MOVABLE MEANS AND TO POSITION SO AS TO ENGAGE SAID RECIPROCABLE MEANS AND TO CAUSE THE SAME TO PREVENT SAID VALVE MEMBER FROM MOVING INTO ITS CLOSING POSITION, MAGNETIC MEANS ARRANGED ADJACENT SAID CONTROL MEMBER FOR URGING THE LATTER INTO SAID EFFECTIVE POSITION, SAID CONTROL MEMBER ALSO BEING MOVABLE OUT OF SAID EFFECTIVE POSITION SO AS TO DISENGAGE SAID RECIPROCABLE MEANS AND THEREBY TO PERMIT NORMAL OPERATION OF SAID VALVE MEMBER INCLUDING ITS MOVEMENT INTO CLOSING POSITION, AND MEANS CONNECTED TO SAID CONTROL MEMBER AND RESPONSIVE TO A CERTAIN PRESSURE OF AIR PASSING FROM SAID CRANK CASE THROUGH SAID CONDIUT MEANS INTO SAID CHAMBER AUTOMATICALLY TO BRING ABOUT MOVEMENT OF AND CONTROL MEMBER OUT OF SAID EFFECTIVE POSITION.
Claim 2
Dependent Claim 199 words
AN INTERNAL COMBUSTION ENGINE, WHICH COMPRISES: A CYLINDER, A CAM SHAFT, A CRANK CASE, A CHAMBER, AIR CONDUIT MEANS ESTABLISHING CONNUNICATION BETWEEB THE THE INTERIOR OF SAID CRANK CASE AND SAID CHAMBER, A VALVE MEMBER ASSOCIATED WITH SAID CYLINDER AND OPERABLE DURING NORMAL OPERATION OF SAID ENGINE ALTERNATELY TO MOVE INTO OPENING AND CLOSING POSITION, RECIPROCABLE MEANS ACTUABLE BY SAID CAM SHAFT AND OPERABLE TO CONTROL SAID MOVEMENT OF SAID VALVE MEMBER, A CONTROL MEMBER MOVABLY ARRANGED IN SAID CHAMBER AND MOVABLE MEANS AND TO POSITION SO AS TO ENGAGE SAID RECIPROCABLE MEANS AND TO CAUSE THE SAME TO PREVENT SAID VALVE MEMBER FROM MOVING INTO ITS CLOSING POSITION, MAGNETIC MEANS ARRANGED ADJACENT SAID CONTROL MEMBER FOR URGING THE LATTER INTO SAID EFFECTIVE POSITION, SAID CONTROL MEMBER ALSO BEING MOVABLE OUT OF SAID EFFECTIVE POSITION SO AS TO DISENGAGE SAID RECIPROCABLE MEANS AND THEREBY TO PERMIT NORMAL OPERATION OF SAID VALVE MEMBER INCLUDING ITS MOVEMENT INTO CLOSING POSITION, AND MEANS CONNECTED TO SAID CONTROL MEMBER AND RESPONSIVE TO A CERTAIN PRESSURE OF AIR PASSING FROM SAID CRANK CASE THROUGH SAID CONDIUT MEANS INTO SAID CHAMBER AUTOMATICALLY TO BRING ABOUT MOVEMENT OF AND CONTROL MEMBER OUT OF SAID EFFECTIVE POSITION.

References Cited (Backward Citations)

US1839008A Cited
FR460920A Cited
GB191228296A Cited
US1437738A Cited
GB376490A Cited
US2137482A Cited
US2387728A Cited
US2999491A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-04-25 1969-10-25 1970-04-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-04-25 1973-10-25 1974-04-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-04-25 1977-10-25 1978-04-26 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag