US3872983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freight carrying device
Assignee: Evans Products Co
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Filing: 1970-04-20
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Granted: 1975-03-25
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Expires: 1990-04-20
Abstract
Abstract A freight carrying railway car embodying a plurality of doors mounted for pivotal movement about a horizontally disposed axis from an open, loading position to a closed, cargo carrying position. In the open position, the doors serve as ramps onto which one or more motor vehicles may be driven. As the doors are pivoted to their closed position the motor vehicles become suspended upon the doors. A locking arrangement is provided at the top and sides of the doors for insuring that they are locked. Two different types of hold-downs are disclosed for holding the motor vehicles in position upon the closed doors. One of these hold-downs is manually operated and is disposed so that the doors cannot be closed unless the hold-down is in its locked position. The other embodiment of hold-down is automatically movable to its locked position when the door is closed.
Inventors
- 👤 Harvey W Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:45
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/07; B61; B61D; B61D47/00; B61D47/005; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0839
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
186 words
In a freight carrying device comprising a load carrying member adapted to support a load, means supporting said load carrying member for movement between a loading position and a load supporting position, first latching means for locking said load carrying member in its load supporting position, said first latching means being movable between a latching position and a released position, means in said load carrying member defining a channel adapted to receive an operator for moving said first latching means between its positions, second latching means for locking said load carrying member in its load supporting position, said second latching means being movable between a latching position and a released position, means for moving said second latching means between its positions, and means operatively connected to each of said latching means for precluding removal of the operator from said channel until both of said latching means are in their latched positions and for precluding movement of one of said latching means from its released position to its latched position until the other of said latching means is moved from its released position to its latched position.
Claim 2
Dependent Claim
186 words
In a freight carrying device comprising a load carrying member adapted to support a load, means supporting said load carrying member for movement between a loading position and a load supporting position, first latching means for locking said load carrying member in its load supporting position, said first latching means being movable between a latching position and a released position, means in said load carrying member defining a channel adapted to receive an operator for moving said first latching means between its positions, second latching means for locking said load carrying member in its load supporting position, said second latching means being movable between a latching position and a released position, means for moving said second latching means between its positions, and means operatively connected to each of said latching means for precluding removal of the operator from said channel until both of said latching means are in their latched positions and for precluding movement of one of said latching means from its released position to its latched position until the other of said latching means is moved from its released position to its latched position.
Claim 3
Dependent Claim
57 words
A freight carrying device as set forth in claim 1 wherein the last named means includes a blocking member adapted to extend across the channel, means connecting said blocking member to the first latching means for moving the blocking member to a blocking position within the channel when said first latching means is in its released position.
Claim 4
Dependent Claim
64 words
A freight carrying device as set forth in claim 2 wherein the last named means further includes a second blocking member movable to a blocking position within the channel and means interconnecting said second blocking member to the second latching means for moving said second blocking member to its blocking position within the channel when said second latching means is in its released position.
Claim 5
Dependent Claim
40 words
A freight carrying device as set forth in claim 3 wherein the Means for precluding movement of one of the latching means from its released position to its latched position comprises interengaging means on the first and second blocking members.
Claim 6
Dependent Claim
59 words
A freight carrying device as set forth in claim 1 wherein the device comprises a railway car, the load carrying member comprising a door for said car, said door being supported for its movement between its positions about a horizontally disposed axis and forming a ramp when in its loading position onto which a motor vehicle may be driven.
Claim 7
Dependent Claim
184 words
A freight carrying device as set forth in claim 1 wherein the first latching means comprises a latching pin supported for reciprocation and further includes an operating lever supported for pivotal movement within the channel and adapted to be engaged by the fork of a lift truck or the like for pivoting said actuating lever and moving said latching pin between its latching positions and its released position, the last named means including a first blocking member supported for pivotal movement within said channel at a point axially spaced from said actuating lever and operatively connected to said latching pin for retaining a fork within said channel when in a blocking position, the second latching means comprising a slidably supported latching bar, said latching bar having a portion adapted to be received in said channel when said latching bar is in its released position for retaining the fork within said channel, said latching bar portion having a cut-out therein for receiving said blocking member to preclude movement of said latching bar to its latched position until said latching pin is in its latching position.
Claim 8
Dependent Claim
169 words
A closure construction comprised of a closure member, means supporting said closure member for pivotal movement about a pivot axis between an opened position and a closed position, first latching means at the edge of said closure member remote from its pivot axis, said first latching means being movable between a latched position and a released position, second latching means at an edge of said closure member angularly disposed relative to the first mentioned edge, said second latching means being movable between a latched position and a released position, means defining an opening in said closure member for receiving an operator for moving one of said latching means between its positions, means for moving the other of said latching means between its positions, means for precluding the removal of an operator from said opening until said other latching means is in its latched position, and means for precluding movement of said other latching means to its latched position until said first latching means is moved to its latched position.
Claim 9
Dependent Claim
169 words
A closure construction comprised of a closure member, means supporting said closure member for pivotal movement about a pivot axis between an opened position and a closed position, first latching means at the edge of said closure member remote from its pivot axis, said first latching means being movable between a latched position and a released position, second latching means at an edge of said closure member angularly disposed relative to the first mentioned edge, said second latching means being movable between a latched position and a released position, means defining an opening in said closure member for receiving an operator for moving one of said latching means between its positions, means for moving the other of said latching means between its positions, means for precluding the removal of an operator from said opening until said other latching means is in its latched position, and means for precluding movement of said other latching means to its latched position until said first latching means is moved to its latched position.
Claim 10
Dependent Claim
37 words
A closure construction as set forth in claim 7 wherein the last named means further includes means for precluding removal of the operator from the opening until both of the latching means are in their latched positions.
Claim 11
Dependent Claim
26 words
A closure structure as set forth in claim 7 wherein the closure member comprises a door and wherein the pivot axis is a horizontally disposed axis.
Claim 12
Dependent Claim
22 words
A closure construction as set forth in claim 7 further including hook means affixed to the closure member for carrying objects thereupon.
Claim 13
Dependent Claim
43 words
A closure construction as set forth in claim 10 wherein the closure member comprises a door, the pivot axis being horizontally disposed whereby the door forms a ramp in its opened position for driving of motor vehicles thereupon for support by the hooks.
Claim 14
Dependent Claim
65 words
A closure construction as set forth in claim 11 further including hold-down means cooperating with the hook means and the motor vehicles for retaining the motor vehicles upon the closure member, said hold-down means being movable between an engaged position and a disengaged position, and means for moving said hold-down means between its positions in response to movement of said closure member between its positions.
Claim 15
Dependent Claim
79 words
A closure construction as set forth in claim 11 further including hold-down means cooperating with the Hook means and the motor vehicles for retaining the motor vehicles upon the closure member, said hold-down means being movable between an engaged position and a disengaged position, operating means for moving said hold-down means between its positions, said operating means including means for precluding movement of said closure member to its closed position when said hold-down means is in its disengaged position.
Claim 16
Dependent Claim
39 words
A closure construction as set forth in claim 7 wherein the pivot axis of the closure member is horizontally disposed and is at the lower edge of said closure member when said closure member is in its closed position.
Claim 17
Dependent Claim
36 words
A closure construction as set forth in claim 14 further including means for precluding movement of the other latching means to its latched position until the first mentioned latching means is moved to its latched position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |