← Back to Patent Explorer
US4058995A Expired / Lapsed US ⏱️ 0.0 years remaining

Lock de-icer

Assignee: Individual
•
Filing: 1976-08-24
•
Granted: 1977-11-22
•
Expires: 1996-08-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A telescoping hollow tube provides means for channeling warm human breath onto a frozen lock. The warm breath thaws the lock. When not in use, the tube telescopes to a small size for easy portability.

Inventors

  • 👤 Cecil Greaves

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 04:50
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/0016; Y; Y10; Y10T; Y10T70/00; Y10T70/80

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 193 words
A lock de-icer comprising: a. a plurality of telescoping annular segments; b. said segments, when extended forming a hollow generally conical channel; c. one of the end segments of said plurality of annular segments having an outward directed flange of resilient material attached at the outer extremity thereof, said outward directed flange being deformable whereby it may be deformed to sealingly abut the curved surface of a vehicle surrounding the vehicle door lock; d. an air release hole providing open communication for air from the inside to the outside of one of said telescoping annular segments; e. an outer ring attached to the perimeter of said outward directed flange, said outer ring being coaxial with said one of the end segments and forming between itself and said one of the end segments an annular cavity in which all others of the telescoping annular segments may be contained; f. a cover adapted to sealingly fit over the end of said outer ring remote from said outward directed flange and to hold said all others of the telescoping annular segments within said annular cavity, and g. said cover being flexiby hinged to said outer ring.
Claim 2
Dependent Claim 193 words
A lock de-icer comprising: a. a plurality of telescoping annular segments; b. said segments, when extended forming a hollow generally conical channel; c. one of the end segments of said plurality of annular segments having an outward directed flange of resilient material attached at the outer extremity thereof, said outward directed flange being deformable whereby it may be deformed to sealingly abut the curved surface of a vehicle surrounding the vehicle door lock; d. an air release hole providing open communication for air from the inside to the outside of one of said telescoping annular segments; e. an outer ring attached to the perimeter of said outward directed flange, said outer ring being coaxial with said one of the end segments and forming between itself and said one of the end segments an annular cavity in which all others of the telescoping annular segments may be contained; f. a cover adapted to sealingly fit over the end of said outer ring remote from said outward directed flange and to hold said all others of the telescoping annular segments within said annular cavity, and g. said cover being flexiby hinged to said outer ring.

References Cited (Backward Citations)

US21955A Cited
US1293273A Cited
US1631951A Cited
US1740418A Cited
US2804242A Cited
US3121408A Cited
US3101904A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-11-21 1981-05-23 1981-11-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-11-21 1985-05-23 1985-11-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-11-21 1989-05-23 1989-11-22 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag