Patent US4909051A successfully refreshed from Google Patents.
US4909051A
Expired / Lapsed
US
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Keeper plate for strap handcuffs
Assignee: Individual
•
Filing: 1989-05-04
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Granted: 1990-03-20
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Expires: 2009-05-04
Abstract
Abstract a keeper plate for use with strap handcuffs is disclosed. The plate in one embodiment for a single handcuff is generally rectangular, with flattened concave edges disposed on its longer sides and strap-receiving channels extending through its shorter sides. The flattened concave edges generally conform to the shape of the palm side of a human wrist and enable a strap handcuff to be tightened securely with minimized danger of cutting off circulation. In another embodiment for a pair of handcuffs, the plate is elongated and has a channel for receiving one strap handcuff disposed spaced apart from a flattened concave edge at each end. This enables securing of limbs without bringing them closely together. Holes may be provided in the plates to enable tying to other straps or other objects.
Inventors
- 👤 James A. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:15
CPC Classifications
E; E05; E05B; E05B75/00; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/402; Y10T70/404
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
87 words
A keeper plate for receiving and securing a strap handcuff around at least one limb of a prisoner comprising: a generally rectangular plate having an opposing pair of generally concave sides including a flattened middle portion for receiving said limb and a pair of ends between said sides; and each of said ends having spaced apart from its edge a strap-receiving channel extending therethrough from one of said sides to the other whereby said strap handcuff may be threaded through such channels and tightened around said limb.
Claim 2
Dependent Claim
87 words
A keeper plate for receiving and securing a strap handcuff around at least one limb of a prisoner comprising: a generally rectangular plate having an opposing pair of generally concave sides including a flattened middle portion for receiving said limb and a pair of ends between said sides; and each of said ends having spaced apart from its edge a strap-receiving channel extending therethrough from one of said sides to the other whereby said strap handcuff may be threaded through such channels and tightened around said limb.
Claim 3
Dependent Claim
17 words
A keeper plate as defined as claim 1 wherein said channels have a generally rectangular cross section.
Claim 4
Dependent Claim
26 words
A keeper plate as defined as claim 2 wherein said ends have a concave shape, and said channels are uniformly spaced apart from the edges thereof.
Claim 5
Dependent Claim
18 words
A keeper plate as defined as claim 3 including at least one strap-receiving hole penetrating the thickness thereof.
Claim 6
Dependent Claim
26 words
A keeper plate as defined as claim 4 wherein said flattened concave edges generally conform to the shape of the palm side of the human wrist.
Claim 7
Dependent Claim
81 words
A keeper plate for receiving and securing a pair of strap handcuffs comprising: an elongated generally rectangular plate having an opposing pair of generally concave ends including a flattened middle portion and a pair of elongated sides between said ends; and each of said ends having spaced apart from its edge a strap-receiving channel extending therethrough and terminating at locations outside said flattened middle portion whereby said strap handcuff may be threaded therethrough and tightened around a limb of a prisoner.
Claim 8
Dependent Claim
81 words
A keeper plate for receiving and securing a pair of strap handcuffs comprising: an elongated generally rectangular plate having an opposing pair of generally concave ends including a flattened middle portion and a pair of elongated sides between said ends; and each of said ends having spaced apart from its edge a strap-receiving channel extending therethrough and terminating at locations outside said flattened middle portion whereby said strap handcuff may be threaded therethrough and tightened around a limb of a prisoner.
Claim 9
Dependent Claim
17 words
A keeper plate as defined as claim 6 wherein said channels have a generally rectangular cross section.
Claim 10
Dependent Claim
29 words
A keeper plate as defined as claim 7 wherein the edges of said flattened concave ends generally conform to the shape of the palm side of a human wrist.
Claim 11
Dependent Claim
18 words
A keeper plate as defined as claim 8 including at least one strap-receiving hole penetrating the thickness thereof.
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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) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |