# US 8,769,998 B1 · Biased cuff assembly

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- Number: US 8,769,998 B1
- Document ID: US8769998B1
- Status: Granted
- Kind: B1
- Application number: 13/913,866
- Filed: 2013-06-10
- Granted: 2014-07-08
- Earliest claimed: 2013-06-10
- Applicants: Chad A. MacConnell
- Inventors: Chad A. MacConnell
- Web page: https://patentgrep.com/patent/US8769998B1

## CPC

- E05B 75/00: Handcuffs {; Finger cuffs; Leg irons; Handcuff holsters; Means for locking prisoners in automobiles (retaining devices for the body or body parts A61F5/37)}
- Y10T 70/404: Manacles and cuffs
- E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A biased cuff assembly comfortably but securely cuffs extremities of a person. The assembly includes a cuff having a first arcuate section hingedly coupled to a second arcuate section configured to form a closed loop to secure the cuff to an extremity of a person. A sheath is pivotally coupled to the first arcuate section of the cuff. The first arcuate section of the cuff is positioned in a slot in the sheath. The sheath has an arcuate edge extending into an opening of the loop when the sheath is in a retracted position wherein the arcuate edge of the sheath is configured to contact the extremity extending through the loop. A biasing member is coupled to the first arcuate section of the cuff and positioned to bias the sheath to pivot outwardly away from the opening of the loop.

## Claims

### Claim 1

A biased cuff assembly comprising:
a cuff having a first arcuate section hingedly coupled to a second arcuate section;
a hinge coupling said first arcuate section to said second arcuate section;
a slit extending through said first arcuate section, a free end of said second arcuate section being insertable into said slit and engageable to said first arcuate section forming a closed loop configured for securing said cuff to an extremity of a person;
a sheath pivotally coupled to said first arcuate section of said cuff, said sheath having a longitudinal slot, said first arcuate section of said cuff being positioned in said slot, said sheath having an arcuate edge extending into an opening of said loop when said sheath is in a retracted position wherein said arcuate edge of said sheath is configured to contact the extremity extending through said loop; and
a biasing member coupled to said first arcuate section of said cuff, said biasing member being positioned to bias said sheath to pivot outwardly away from said opening of said loop.

### Claim 2 (depends on 1)

The assembly of claim 1, further comprising a stopper coupled to and extending from said arcuate edge of said sheath into said opening of said loop wherein said stopper is positioned to abut said first arcuate section of said cuff when said sheath is biased into a fully extended position.

### Claim 3 (depends on 1)

The assembly of claim 1, further comprising:
a locking pin slidably coupled to said first arcuate section of said cuff, said locking pin being slidable between a first position and a second position; and
a curved locking slot extending through said first arcuate section, said locking pin being positioned in said locking slot, said locking slot having a first end section and a second end section, said first end section being laterally offset from said second end section such that said sheath is secured in a fully extended position when said locking pin is positioned in said first end section and said sheath is positioned in a fully retracted position when said locking pin is positioned in said second end section of said slot.

### Claim 4 (depends on 1)

The assembly of claim 1, further comprising said sheath being pivotally coupled to said hinge coupling said first arcutate section of said cuff to said second arcuate section of said cuff.

### Claim 5 (depends on 1)

The assembly of claim 1, further comprising said biasing member being a torsion spring.

### Claim 6

A biased cuff assembly comprising:
a cuff having a first arcuate section hingedly coupled to a second arcuate section;
a hinge coupling said first arcuate section to said second arcuate section;
a slit extending through said first arcuate section, a free end of said second arcuate section being insertable into said slit and engageable to said first arcuate section forming a closed loop configured for securing said cuff to an extremity of a person;
a sheath pivotally coupled to said first arcuate section of said cuff, said sheath having a longitudinal slot, said first arcuate section of said cuff being positioned in said slot, said sheath having an arcuate edge extending into an opening of said loop when said sheath is in a retracted position wherein said arcuate edge of said sheath is configured to contact the extremity extending through said loop, said sheath being pivotally coupled to said hinge coupling said first arcutate section of said cuff to said second arcuate section of said cuff;
a biasing member coupled to said first arcuate section of said cuff, said biasing member being positioned to bias said sheath to pivot outwardly away from said opening of said loop, said biasing member being a torsion spring;
a stopper coupled to and extending from said arcuate edge of said sheath into said opening of said loop wherein said stopper is positioned to abut said first arcuate section of said cuff when said sheath is biased into a fully extended position;
a locking pin slidably coupled to said first arcuate section of said cuff, said locking pin being slidable between a first position and a second position; and
a curved locking slot extending through said first arcuate section, said locking pin being positioned in said locking slot, said locking slot having a first end section and a second end section, said first end section being laterally offset from said second end section such that said sheath is secured in said fully extended position when said locking pin is positioned in said first end section and said sheath is positioned in a fully retracted position when said locking pin is positioned in said second end section of said slot.