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(12) Patent Application: | (11) CA 2003186 |
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(54) English Title: | QUICK-CHANGE WHEEL LANDING GEAR |
(54) French Title: | TRAIN D'ATTERRISSAGE A ROUES A MONTAGE RAPIDE |
Status: | Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | KIRBY EADES GALE BAKER |
(74) Associate agent: | |
(45) Issued: | |
(22) Filed Date: | 1989-11-17 |
(41) Open to Public Inspection: | 1990-06-08 |
Examination requested: | 1996-08-07 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | ||||||
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13
QUICK CHANGE WHEEL LANDING GEAR
ABSTRACT OF THE DISCLOSURE
A quick change wheel landing gear assembly (10) is
provided as a replacement for a skid landing gear system
on a vertical take-off and lending aircraft. The wheel
landing gear assembly (10) includes a pair of spaced-
apart fore and aft longitudinal tubes (16, 18) attached
to a pair of short, spaced-apart cross tubes (20, 22)
that are adapted to mount on the structural saddles (12,
14) used to mount the skid landing gear on the underside
of the aircraft. The longitudinal tubes (16, 18) are
connected together at the forward end for mounting a
fully swiveling nose gear (26) thereto. Aft main gear
wheels (30, 32) are mounted on cantilever landing gear
legs (34, 36) that extend laterally from the
longitudinal tubes (16, 18) adjacent the aft cross tube
(22). Landing loads on the landing gear may be absorbed
by resilient springs (25), deflection of the gear legs
(34, 36) and the aft cross tube (22), torsion of the
fore and aft longitudinal tubes (16, 18), or any
combination of these actions. Resilient springs (25)
are used in the landing gear assembly (10) to attenuate
fatigue stresses in conjunction with the deflection of
the longitudinal (16, 18) and cross tubes (20, 22) of
the gear assembly (10). The wheel landing gear assembly
(10) is designed to be mounted on existing aircraft
structural saddles and to retain many of the desirable
features of a said landing gear system, including low
cost and easy maintenance.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.
Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
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Description | Date |
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Inactive: IPC from MCD | 2006-03-11 |
Time Limit for Reversal Expired | 2000-11-17 |
Application Not Reinstated by Deadline | 2000-11-17 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 1999-11-17 |
Inactive: Status info is complete as of Log entry date | 1998-04-30 |
Inactive: Application prosecuted on TS as of Log entry date | 1998-04-30 |
Request for Examination Requirements Determined Compliant | 1996-08-07 |
All Requirements for Examination Determined Compliant | 1996-08-07 |
Application Published (Open to Public Inspection) | 1990-06-08 |
Abandonment Date | Reason | Reinstatement Date |
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1999-11-17 |
The last payment was received on 1998-07-09
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
Patent fees are adjusted on the 1st of January every year. The amounts above are the current amounts if received by December 31 of the current year.
Please refer to the CIPO
Patent Fees
web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Request for examination - standard | 1996-08-07 | ||
MF (application, 8th anniv.) - standard | 08 | 1997-11-17 | 1997-11-03 |
MF (application, 9th anniv.) - standard | 09 | 1998-11-17 | 1998-07-09 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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BELL HELICOPTER TEXTRON INC. |
Past Owners on Record |
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CHARLES EDWARD DAVIS |
JAY ROBERT DUPPSTADT |