Patent US3565270A successfully refreshed from Google Patents.
US3565270A
Expired / Lapsed
US
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Coupling for carts
Assignee: Guilbert Inc
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Filing: 1968-02-13
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Granted: 1971-02-23
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Expires: 1988-02-13
Abstract
Abstract A coupling for carts that may be engaged with an angularly disposed cart, which returns the cart to a straight line and guides it onto and off a dumbwaiter car.
Inventors
- 👤 Nicholas R Guilbert Jr
- 👤 Louis P Metz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:23
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/12; E; E04; E04H; E04H6/00; E04H6/08; E04H6/12; E04H6/18; E04H6/24; E04H6/245
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
126 words
A coupling mechanism for carts comprising: a cart; a coupling member on the cart; a frame with respect to which said cart is to be positioned; a carriage mounted on said frame and horizontally movable with respect thereto; operating means for moving said carriage; means on said carriage and engaging said coupling member for positively aligning said cart with respect to said carriage upon movement of said carriage; said last mentioned means including: fixed horizontally extending guide members on said carriage; latching mechanism carried by said carriage and having a latching member engageable with said coupling member; and said latching mechanism having spaced, movable cart-control-bar members engaging said guide members and opposed portions of said coupling member and thereby impelling said coupling member to aligned position.
Claim 2
Dependent Claim
126 words
A coupling mechanism for carts comprising: a cart; a coupling member on the cart; a frame with respect to which said cart is to be positioned; a carriage mounted on said frame and horizontally movable with respect thereto; operating means for moving said carriage; means on said carriage and engaging said coupling member for positively aligning said cart with respect to said carriage upon movement of said carriage; said last mentioned means including: fixed horizontally extending guide members on said carriage; latching mechanism carried by said carriage and having a latching member engageable with said coupling member; and said latching mechanism having spaced, movable cart-control-bar members engaging said guide members and opposed portions of said coupling member and thereby impelling said coupling member to aligned position.
Claim 3
Dependent Claim
33 words
A coupling mechanism as defined in claim 1 in which latching-member-releasing members are provided for releasing said latching member upon movement of said latching member to the end of its path of movement.
Claim 4
Dependent Claim
36 words
A coupling member as defined in claim 2 in which: said operating means for moving said carriage includes a driving motor; said latch-member-releasing members have operating mechanism therefor; and said operating mechanism includes a driving motor.
Claim 5
Dependent Claim
47 words
A coupling mechanism as defined in claim 1 in which: releasing mechanism is provided for said latching member; said releasing mechanism includes a slidably mounted downwardly movable arm, connected to said latching member; and releasing members are provided selectively engageable with said arm for actuating the same.
Claim 6
Dependent Claim
27 words
A coupling mechanism as defined in claim 4 in which: an operating chain is provided between said releasing members; and actuating mechanism is provided for said chain.
Claim 7
Dependent Claim
29 words
A coupling mechanism as defined in claim 5 in which said actuating mechanism includes a motor driven gear with a sprocket engaging said chain eccentrically mounted on said gear.
Claim 8
Dependent Claim
20 words
A coupling mechanism as defined in claim 1 in which said cart-control-bar members include rollers engageable with said guide members.
Claim 9
Dependent Claim
31 words
A coupling member as defined in claim 1 in which: said operating means for moving said carriage includes a driving motor; and said latch member releasing members have operating mechanism therefor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |