← Back to Patent Explorer
US4322102A Expired / Lapsed US ⏱️ 0.0 years remaining

Guarded locking device

Assignee: Individual
•
Filing: 1980-07-21
•
Granted: 1982-03-30
•
Expires: 2000-07-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A guard for protecting the shackle of a padlock used for locking a locking device in the engaged position comprises a U-shaped member having plate limbs, the shackle being received in the space between the limbs to be protected by the limbs against cutting by means of a tool such as a saw, a file or a bolt clipper.

Inventors

  • 👤 Erik I. Lindblom

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 11:35
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/08; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1025; Y10T292/31; Y10T292/331; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/487; Y10T70/493; Y10T70/498

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 120 words
A guarded locking device for receiving a padlock comprising: a U-shaped member having two spaced apart plate limbs with a through opening; and a pin for insertion through said opening, said pin having an aperture therethrough for receiving the shackle of the padlock between said plate limbs in the engaged position of the device and wherein said pin is flat and is curved in the longitudinal direction thereof forming a concave edge and a convex edge to have said concave edge facing the free ends of the limbs of the U-shaped member when the pin is received by the openings in said limbs and further wherein said pin urges the U-shaped limbs together when force is applied to said padlock.
Claim 2
Dependent Claim 120 words
A guarded locking device for receiving a padlock comprising: a U-shaped member having two spaced apart plate limbs with a through opening; and a pin for insertion through said opening, said pin having an aperture therethrough for receiving the shackle of the padlock between said plate limbs in the engaged position of the device and wherein said pin is flat and is curved in the longitudinal direction thereof forming a concave edge and a convex edge to have said concave edge facing the free ends of the limbs of the U-shaped member when the pin is received by the openings in said limbs and further wherein said pin urges the U-shaped limbs together when force is applied to said padlock.

References Cited (Backward Citations)

US160723A Cited
GB227884A Cited
US1834678A Cited
DK64533C Cited
US2536941A Cited
US2584575A Cited
US3392555A Cited
US3590607A Cited
US3695657A Cited
US3718014A Cited
CA969993A Cited
US3800570A Cited
US3961816A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-03-29 1985-09-28 1986-03-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-03-29 1989-09-28 1990-03-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-03-29 1993-09-28 1994-03-30 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag