Patent US1839434A successfully refreshed from Google Patents.
US4772880A
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US
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Shopping cart anti-theft system
Assignee: BOLARGO DEVELOPMENT Ltd A CORP OF CALIFORNIA
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Filing: 1986-01-21
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Granted: 1988-09-20
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Expires: 2006-01-21
Abstract
Abstract An anti-theft assembly for carts including a housing adapted to fit adjacent a wheel of a cart, a receiver within the housing for sensing the passage of the cart beyond a preselected range and providing a signal indicative thereof, and an arrangement responsive to the signal for lowering an arm into the direct path of the adjacent wheel.
Inventors
- 👤 Larry W. Goldstein
- 👤 Robert H. Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:31
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/02; G08B21/0202; G08B21/0205; G08B21/0213; B; B62; B62B; B62B5/00; B62B5/04; B62B5/0404; B62B5/0423; G08B13/00; G08B13/02; G08B13/14; G08B13/1427; G08B21/0227; G08B21/023
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
An anti-theft assembly for carts having wheels which rotate about horizontal axes and which vary their direction about essentially vertical axes and in which the wheels are held in position by supporting means comprising a housing adapted to fit to the support means adjacent a wheel of a cart, means within the housing for sensing the passage of the cart beyond a preselected range and providing a signal indicative thereof, and means responsive to the signal for lowering an arm into the direct path of the adjacent wheel whereby the direction of the wheel is varied about its vertical axis to be other than straight ahead.
Claim 2
Dependent Claim
106 words
An anti-theft assembly for carts having wheels which rotate about horizontal axes and which vary their direction about essentially vertical axes and in which the wheels are held in position by supporting means comprising a housing adapted to fit to the support means adjacent a wheel of a cart, means within the housing for sensing the passage of the cart beyond a preselected range and providing a signal indicative thereof, and means responsive to the signal for lowering an arm into the direct path of the adjacent wheel whereby the direction of the wheel is varied about its vertical axis to be other than straight ahead.
Claim 3
Dependent Claim
44 words
An anti-theft assembly as claimed in claim 1 in which the means responsive to the signal for lowering an arm lowers a first arm into the forward path of the adjacent wheel and a second arm into the reverse path of the adjacent wheel.
Claim 4
Dependent Claim
47 words
An anti-theft assembly as claimed in claim 1 further comprising means for fixing the assembly to a cart including a portion of the assembly having an aperture therein adapted to accept a vertical axle holding the adjacent wheel, the assembly being positioned and held in place thereby.
References Cited (Backward Citations)
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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) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |