← Back to Patent Explorer
EP0152277A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Goods vehicle locking arrangement

Assignee: Freightlock Ltd
•
Filing: 1985-02-07
•
Granted: —
•
Expires: 2005-02-07
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A locking arrangement for goods vehicles comprises a pneumatically actuated bolt (11) cooperating with an apertured member to secure the vehicle closed, said bolt (11) being pneumatically retractable to unlock the vehicle by a secure valve (18) and powered from the vehicle's pressure air supply (17).

Inventors

  • 👤 James Maple

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 22:46
CPC Classifications
E; E05; E05B; E05B51/00; E05B51/02

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 42 words
A locking arrangement for goods vehicles comprising a pneumatically actuated bolt cooperating with an apertured member to secure the vehicle closed, said bolt being pneumatically retractable to unlock the vehicle by a secure valve and powered from the vehicle's pressure air supply.
Claim 2
Dependent Claim 42 words
A locking arrangement for goods vehicles comprising a pneumatically actuated bolt cooperating with an apertured member to secure the vehicle closed, said bolt being pneumatically retractable to unlock the vehicle by a secure valve and powered from the vehicle's pressure air supply.
Claim 3
Dependent Claim 16 words
A locking arrangement according to claim 1, said secure valve being operated by a security key.
Claim 4
Dependent Claim 16 words
A locking arrangement according to claim 1 or claim 2, said secure valve being electrically operated.
Claim 5
Dependent Claim 20 words
A locking arrangement according to any one of claims 1 to 3, said bolt being biassed toward the locking position.
Claim 6
Dependent Claim 16 words
A locking arrangement according to claim 4, said bolt being spring biassed toward the locking position.
Claim 7
Dependent Claim 26 words
A locking arrangement according to claim 4 or claim 5, said bolt being retractable against the bias by said apertured member for automatic locking on closure.
Claim 8
Dependent Claim 17 words
A locking arrangement according to claim 6, said apertured member and said bolt having a camming action.
Claim 9
Dependent Claim 34 words
A locking arrangement according to any one of claims 1 to 7, said bolt being retracted from said apertured member on actuation for a short time interval before automatically returning to the locking position.
Claim 10
Dependent Claim 30 words
A locking arrangement according to any one of claims 1 to 8, said bolt and associated actuating means and said apertured member when in the closed position being securely concealed.
Claim 11
Dependent Claim 21 words
A locking arrangement according to any one of claims 1 to 9, said aperture member being on a roller shutter door.

References Cited (Backward Citations)

DE1120929B Cited
US3601453A Cited
US3624761A Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag